| ADVANCED MODULAR POWER SYSTEMS
4667 Freedom Drive Ann Arbor, MI 48108 (313) 677-4260 PI: Robert C. Svedberg (313) 677-3027 Contract #: F49620-97-C-0006 |
UNIV. OF MICHIGAN
2300 Hayward Ave Ann Arbor, MI 48109 (313) 764-6203 ID#: 96AFOT002 Agency: AF Topic#: 96-001 |
| Title: Low Cost, YAG and Mullite Fibers by Continuous Extrusion and Pyrolysis of Metal Carboxylate Precursors | |
| Abstract: We propose to develop low-cost, creep-stable, polycrystalline yttrium aluminum garnet (YAG) and mullite (3Al203.2Si02) fibers (10-20 µm dia.) for evaluation as reinforcement for advanced ceramic composites. The fibers will be produced by spinning optimized alkoxide and carboxylate metalloorganic precursors. The critical issues that must be resolved fall into three categories: 1) control of fiber mechanical properties (tensile strength, creep resistance, etc.); 2) production of commercial quantities of fibers, and 3) development of low-cost processes. Phase I studies will focus on producing 10s of meters of single tows of fibers/h of both mullite and YAG fibers. Phase II will scale-up studies to 100s of meters of multiple tows of fibers/h. Efforts will be made to develop interfacial coatings that these tows can be used to fabricate oxide/oxide (e.g. YAG/YAG) ceramic matrix composites. Finally, examples of oxide/oxide composites will be fabricated.The potential success of the proposed program hinges on the need for inexpensive precursors and processing methods. Two low-cost routes to spinnable aluminum carboxylate and silicon alkoxide precursors were recently discovered. In one instance the precursor source is boehmite and the other, fused silica. These spinnable precursors offer direct access to YAG and mullite fibers and matrices. | |
| ALPHATECH, INC.
50 Mall Rd Burlington, MA 01803 (617) 273-3388 PI: Ronald D. Chaney (617) 273-3388 Contract #: F49620-97-C-0071 |
MIT LINCOLN LAB.
244 Wood Street Lexington, MA 02173 (617) 981-7094 ID#: 97AFO-045 Agency: AF Topic#: 97-004 |
| Title: Situation Awareness Based on Fusion of Data from Multiple Sources: Machine Learning of Semi-Augomatic Decision Aids | |
| Abstract: The prodigious amount of information provided by surveillance systems and other information sources has created unprecedented opportunities for achieving situation awareness. The central challenge is to develop systematic, efficient methods to assimilate all available information regarding the battlespace into a self consistent representation that is accessible to all users. At the heart of this assimilation are two complementary activities; information fusion and knowledge-base construction. Information fusion provides and internally consistent method for dynamically updating the estimated state of the battlespace as new information becomes available; knowledge bases provide a convenient, hierarchical framework to represent the state estimate. A particular challenge is to manage this flood of heterogeneous information for analysts who must interpret it. Semi-automatic decision aids that incorporate machine learning techniques offer the promise of reducing the burden on analysts by managing and optimizing information flow, shielding the analyst from system complexity, providing methods to give abstract feedback to the system, and potentially performing high-level reasoning tasks. ALPHATECH and MIT Lincoln Laboratory propose to combine ALPHATECH's situation awareness methodology and Lincoln Laboratory's machine learning techniques to develop semi-automatic decision aids for situation awareness. | |
| APPLIED PULSED POWER TECHNOLOGIES
614 1/2 Narcissus Avenue Corona Del Mar, CA 92625 (714) 640-5738 PI: Eusebio Garate (714) 640-5738 Contract #: F49620-97-C-0067 |
UNIV. OF TENNESSEE
415 Communications Bldg Knoxville, TN 37996 (423) 974-3466 ID#: 97AFO-012 Agency: AF Topic#: 97-002 |
| Title: A DC Atmospheric Corona Discharge System For Sterilization and Chemical Neutralization | |
| Abstract: Decontamination of military equipment and facilities that have been exposed to deadly biological and/or chemical warfare agents is of critical concern to U.S. Armed Forces. These agents include mustard, VX and sarin. Elimination of these agents is required on the battlefield, as well as in chemical agent production, storage and destruction sites. Conventional technologies used for decontamination and sterilization suffer from drawbacks that include toxic by-products, radiation hazards to personnel, and very long time scales for the decontamination process to be effective even over small areas. The objective of our effort is to develop a processing technology based on Dc atmospheric corona discharges that can sterilize biologically contaminated objects and that can neutralize various chemical warfare agents. In Phase I we will use a high density plasma, DC atmospheric corona discharge system to neutralize chemical warfare simulants and sterilize surfaces contaminated with bacteria like E-Coli. We will study the decomposition chemistry, by-product formation and electrical energy consumption of the system and correlate this information with the decomposition rate of the simulants. Standard characterization techniques for determining the composition of the processed gaseous and liquid effluents, like gas chromatography and mass spectrometry, will be used. | |
| APR CONSULTANTS, INC.
27 OAKLAWN MEDWAY, OH 45341 (937) 849-6795 PI: MR TONY GERARDI (937) 849-6795 Contract #: F33615-97-C-3214 |
UNIV. OF DAYTON
300 COLLEGE PK Dayton, OH 45469 (937) 229-4482 ID#: 97WFI-002 Agency: AF Topic#: 97-007 |
| Title: A Practical Method for Aircraft Life Enhancement | |
| Abstract: Aircraft life enhancement is of prime importance in an era of reduced budgets. More and More emphasis is being placed on safely extending the life of existing aircraft and their subsystems. This proposal offers a concept to reduce the fatigu damage incurred on an aircraft by reducing the ground loads it is exposed to. Aircraft fatigue life is based in part on the number of ground-air-ground (GAG) cycles it is expected to endure during its life. Generally, the dynamic loads induced into the aircraft due to runway roughness are factored in as well. It is not uncommon for these dynamic loads to add another half a "g" to the ground part of the GAG cycle. Over time, this could accumulate significant fatigue damage to the aircraft's primary structure as well as subsystems such as the landing gear. Damage due to runway and taxiway roughness is amplified when the aircraft is heavy. These dynmamic loads can be significantly reduced by simply increasing the landing gear strut precharge pressure. The purpose of this effort is to investigate the feasibility of modifying strut precharge pressure for aircraft life enhancement. | |
| CC TECHNOLOGIES LABORATORIES, INC.
6141 AVERY RD DUBLIN, OH 43016 (614) 761-1214 PI: MR NEIL G THOMPSON (614) 761-1214 Contract #: F33615-97-C-3215 |
OHIO STATE UNIV.
1960 KENNY RD COLUMBUS, OH 43214 (614) 292-8671 ID#: 97WFI-009 Agency: AF Topic#: 97-007 |
| Title: Development of a Mathematica Model to Predict Cracking in Corroded Aircraft Structures | |
| Abstract: A significant number of commercial and military aircraft has reached or exceeded their original design life, and fleet surveys have indicated that corrosion is a major problem and is increasing with the fleet's age. Of specific importance is the effect of preexisting corrosion on fatigue crack nucleation and growth. The proposed program is to develop a computer code module to predict the nucleation of fatigue cracks from preexisting corrosion films. The module will be made suitable for integration with existing deterministic and probablistic computer programs, as well as advanced life extension techniques. In Phase I of the program, a model will be built to predict the fatigue crack growth nucleation from pits in typical aircraft aluminum alloys. The model will be based on actual pit geometries and a novel hybrid finite element method developed at the Ohio State University (OSU). Using the model, the stress distribution around surface flaws and incipient cracks can be calculated and possible fatigue nucleation sites can be predicted. The accuracy of the numerical prediction of fatigue crack nucleation will be tested experimentally at the conclusion of the Phase I work, and a plan will be presented to expand the predictive model to other forms of corrosion and integrate the model into existing Air Force deterministic and probalistic computer codes. | |
| CONTAINERLESS RESEARCH, INC.
906 University Place Evanston, IL 60201 (847) 467-2678 PI: Richard Weber (847) 467-2678 Contract #: F49620-97-C-0003 |
UNIV. OF ILLINOIS
Dept. of Materials Science 105 South Goo Urbana, IL 61801 (217) 333-2186 ID#: 96AFOT003 Agency: AF Topic#: 96-001 |
| Title: Advanced Oxide Fibers and Coatings for High Temperature Composite Materials Applications | |
| Abstract: The project goal is to develop oxide composite systems for use in high temperature applications. The project team is CRI who are expert in oxide fiber synthesis and market development and Professor W.M. Kriven and scientists from University of Illinois at Urbana-Champaign (UIUC) who are expert in fiber coating, characterization and composites testing. Prior work by this team has shown that (i) strong oxide fibers can be economically made from various materials by drawing from undercooled molten oxides, (ii) interphase weakening coatings can be deposited on the fibers by pulsed excimer laser ablation (PELA), and (iii) the coated fibers exhibit low debonding shear strengths when imbedded in an oxide matrix. These results strongly indicate that tough oxidation resistant composite materials for high temperature service can be developed by applying the capabilities available at URUC and CRI. The proposed STM would apply these capabilities to further develop these technologies and create the science basis for transferring it to the marketplace. Phase I will be used to optimize fiber growth and coating processes, and to characterize the performance of coated fibers in oxide matrices. Phase II will emphasize R&D to establish new, tough, and oxidation resistant composite materials for very high temperature applications. | |
| CORNERSTONE RESEARCH GROUP, INC.
102 Shelford Way Beavercreek, OH 45440 (937) 320-1877 PI: Patrick J. Hood (937) 320-1877 Contract #: F49620-97-C-0058 |
UNIV. OF ROCHESTER
Center for Optoelectronics & Imaging 240 Rochester, NY 14623-1212 (716) 275-0909 ID#: 97AFO-023 Agency: AF Topic#: 97-003 |
| Title: Glass-Forming Liquid Crystals for Photonic Devices | |
| Abstract: Because of the spontaneous molecular self-assembly into various mesophases and the associated optical anisotropy, liquid crystals have found numerous optical and photonic applications. In addition to active devices, liquid crystal in solid films can be employed as passive devices for which no switching is required. In applications involving solid films, liquid crystals that can be vitrified with an elevated glass transition temperature Tg, offer long-term mesomorphic stability and environmental durability.The objective of this research effort is to demonstrate the feasibility of active and passive photonic devices based on glass-forming liquid crystalline materials. This relatively new class of materials has several unique properties, of which the ability to "freeze" in a specific optical activity and large birefringence enable some unique device design opportunities. The specific objectives of this program include:1) the preparation of nematic glass-forming liquid crystals materials and thin films 2) the experimental determination of the kinetics of defect formation and annihilation; 3) the identification of photonic devices which can utilize this class of materials; 4) the fabrication of transmissive and reflective liquid crystal cells in various configurations; and 5) the investigation of electronic drive mechanisms for heating and switching glass-forming liquid crystals in situ. | |
| CORONA CATALYSIS CORP.
3200 George Washington Way Richland, WA 99352 (509) 375-3365 PI: Joseph Birmingham (509) 375-3365 Contract #: F49620-97-C-0057 |
BATTELLE COLUMBUS OPERATIONS
505 King Avenue Columbus, OH 43201 (614) 424-7068 ID#: 97AFO-016 Agency: AF Topic#: 97-002 |
| Title: Corona Discharge Plasma Reactor for Decontamination | |
| Abstract: The objective of this Phase I project is to demonstrate the use of the low temperature, ambient pressure, Corona Discharge Plasma Reactor (CDPR), which generates photons, electrons, ionized molecules and other active species, to decontaminate materials exposed to toxic chemical and biological contaminants. The proposal is focused on proving the feasibility of using the CDPR to provide rapid sterilization of contaminated materials without damaging the materials or producing hazardous by-products.In laboratory tests, the CDPR technology has already been used to demonstrate 1) the decomposition of chemicals, i.e. phosgene, cyanogen chloride, nerve agent, and benzene; and 2) the deactivation and decomposition of biological aerosol/particulate challenges, i.e. Bacillus globigii spores (a heat resistant simulant for biological warfare and pathogenic waste incinerators) and T-2 mycotoxin.We will assess the feasibility of two different system configurations--a plasma chamber in which materials can be placed for decontamination, and a hand held plasma flare which can be used to "spray" the ionized plasma gases for decontamination of larger materials. Our devices will be designed for low power consumption and field portability as well as high destruction rates and efficiency. We will fabricate and test a prototype device using targeted chemical and biological simulants. The treated material will then be analyzed to determine the system's destruction efficiency thus establishing the feasibility of the CDPR for military applications. A model of the plasma processes will be further developed as a result of this work. | |
| CSA ENGINEERING, INC.
2850 W. Bayshore Road Palo Alto, CA 94303 (415) 494-7351 PI: Brad Allen (415) 494-7351 Contract #: F33615-97-C-2777 |
UNIV. OF DAYTON RESEARCH INSTITUTE
300 College Park Dayton, OH 45469 (937) 229-2919 ID#: 97WPO-009 Agency: AF Topic#: 97-009 |
| Title: Centrifugally Loaded Particle Damping | |
| Abstract: CSA Engineering with the University of Dayton Research Institute (UDRI), propose to develop and validate a design method for implementing particle damping in gas turbine engine blades. The overall program objective is to develop a robust design method to apply particle damping for mitigation of high-cycle fatigue failures of engine blades. The objectives of the Phase I effort are to determine: 1) if particle dampers will function in high centrifugal load environments, and 2) determine if a design method can be developed to predict blade damping effectiveness. The CSA/UDRI team proposes to leverage off an existing SBIR program which is developing a particle damping design methd for non-rotating, high temperature applications. A particle damper parameter characterization test procedure will be developed to investigate the influence of compaction on particles. Also, an analytical procedure which utilizes this parameter characterization test data will be performed on an undamped and damped blade-like structure. Results from this spin pit testing will provide guidance for defining th appropriate Phase II program to complete the overall program objectives. To ensure relevance to the engine community, our team has support from both Pratt & Whitney and AlliedSignal. Benefits: Particle damping is an attractive damping approach centrifugally loaded, high temperature applicatons because it is completely passive, self-contained, will funtion in high temperatures, and will not degrade over time. With a design method developed for particle damper implementation in centrifugal environments, this technology will likely prove to be very useful in reducing high-cycle fatigue failures of gas turbine eingine blades. Other extreme environment applications have been identified, including electric power turbines and the Reusable Launch Vehicle. | |
| EIC LABORATORIES, INC.
111 Downey Street Norwood, MA 02062 (617) 769-9450 PI: Kevin M. Spencer (617) 769-9450 Contract #: F49620-97-C-0055 |
CARNEGIE MELLON UNIV.
5000 Forbes Avenue Pittsburgh, PA 15213 (412) 268-8746 ID#: 97AFO-040 Agency: AF Topic#: 97-003 |
| Title: Regioregular Nonlinear Optical Polymers | |
| Abstract: Photonic materials with alight intensity dependent refractive index have numerous applications within military systems, including optical limiting, all-optical switching and laser frequency conversion. Materials which show this property have a high value of the third order nonlinear optical coefficient or x(3). Hyperconjugated organic polymers have shown considerable promise in this regard. It is the goal of this program to produce improved x(3) polymers by controlling self-assembly of conjugated polymers. This will be achieved by employing synthetic methods recently developed at Carnegie Mellon leading to regioregular polymers that self assemble into extended planar domains. This approach improves both intramolecular and intermolecular conjugation. Processing of these materials will be addressed by employing new star structure geometries for conjugated chains under development at EIC. Preliminary results show that conjugated polymers of superior optical quality may be prepared from these star polymers in thicknesses sufficient for waveguide fabrication. Phase I will entail synthesis of regioregular versions of two "standard" x(3) polymers in both linear and star structures and their evaluation by third harmonic generation. A Phase I goal is >20% improvement in x(3) over nonregioregular analogs. | |
| ENVIRONMENTAL ELEMENTS CORP.
3700 Koppers Street Baltimore, MD 21227 (410) 368-7239 PI: Dennis J. Helfritch (410) 368-7275 Contract #: F49620-97-C-0069 |
UNIV. OF TENNESSEE
404 Andy Holt Tower Knoxville, TN 37996 (423) 974-3466 ID#: 97AFO-009 Agency: AF Topic#: 97-002 |
| Title: Decontamination and Sterilization of Surfaces by Means of a One Atmosphere Uniform Glow discharge Plasma | |
| Abstract: Decontamination of surfaces that have been exposed to biological or chemical agents must be accomplished quickly under battlefield conditions. Extensive time periods for biological and chemical decontamination can result in long periods of equipment inaccessibility which negatively affects quick response forces. A simple fast-acting, and safe method for equipment decontamination would minimize equipment downtime and minimize the number of personnel needed. It has been demonstrated that exposure of chemicals and microorganisms to gas discharge plasmas leads to their destruction. In particular, the One Atmosphere Uniform Glow Discharge Plasma (OAUGDP) has been shown to completely destroy microbial agents in a time frame of tens of seconds. It has similarly been shown to remove surface films, such as photoresist and machine oil, from solid surfaces.The objective of this proposed work will be to demonstrate that the OAUGDP can be an effective portable unit capable of battlefield chemical and biological decontamination. Simulants of chemical and biological agents coating surfaces mimicing military equipment will be exposed to the OAUGDP under various operating parameters. Power levels and exposure times will be the principal variables. The operating conditions needed for complete agent destruction will then be determined and used for the design of a commercial unit. | |
| F&S, INC.
P.O. Box 11704 Blacksburg, VA 24062-1704 (540) 953-4274 PI: Michael Miller (540) 953-4267 Contract #: F49620-97-C-0047 |
VIRGINIA POLYTECHNIC INST. & STATE UNIV.
301 Burruss Hall Blacksburg, VA 24062-1704 (540) 231-5281 ID#: 97AFO-027 Agency: AF Topic#: 97-003 |
| Title: Ioni Self Assembled Monolayer (ISAM) Nonlinear Optical Thin Films and Devices | |
| Abstract: Revolutionary ISAM methods of creating multifunctional thin-films monolayer by monolayer have been proven to yield self-assembled, noncentrosymmetric structures that possess remarkable large x(2) second order nonlinear optical response. Exciting recent work at Virginia Tech has shown that the ionic nature of the deposition process results in a polar ordering of organic second order nonlinear chromophores that exhibits inherent long-term stability, in contrast to nonlinear optical pled polymers. ISAM nonlinear optical thin-films offer additional major advantages of excellent homogeneity for low scattering loss, high thermal and chemical stability, simplicity and low-cost. ISAM films greater than 10 um thick can be produced with excellent uniformity which can be patterned to yield channel waveguides and other device structures. This novel approach to the development of second order nonlinear optical materials avoids the cost and difficulties of inorganic crystal growth (e.g. LiNb03) as well as the large electric fields and subsequent decay of x(2) inherent in poled polymers. F&S has licensed the enabling Virginia Tech patent for ISAM materials processing, and would work with Virginia Tech ISAM and nonlinear optical materials researchers to rapidly transition recent laboratory results to prototype device products. | |
| FAST MATHEMATICAL ALGORITHMS & HARDWARE
1020 Sherman Avenue Hamden, CT 06514 (203) 248-8212 PI: Paolo Barbano (203) 248-8212 Contract #: F49620-97-C-0052 |
YALE UNIV.
12 Prospect Place New Haven, CT 65113-5160 (203) 432-2460 ID#: 97AFO-001 Agency: AF Topic#: 97-001 |
| Title: High Frequency Electromagnetic Propagation/Scattering Codes | |
| Abstract: During the last several years, two new classes of methods have been developed for the solution of scattering problems, the Fast Multipole Method and the Localized cosine Transform. In their current forms, both approaches can be viewed as analytical techniques for the design of numerical methods for the solution of the Helmholtz equation; to our knowledge they have not been used as an asymptotic tool. On the other hand, the examination of the formulae for the translation operators for the Helmholtz equation indicates that their high-frequency expansions in this environment, in the form of numerical corrections. We propose to construct efficient numerical techniques for the solution of large-scale scattering problems based on such asysptotic analysis, and to apply these techniques to the modeling low-observable bodies and with Automatic Target Recognition. Unlike the existing Fast Multipole Methods, these techniques are not convergent schemes, but rather asymptotic ones, not unlike the GTD; on the other hand, we expect them to be much more efficient than the FMM and related methods, especially for large-scale problems. | |
| GASL, INC.
77 RAYNOR AVE RONKONKOMA, NY 11779 (516) 737-9862 PI: MR THOMAS R LEPORE (516) 737-9862 Contract #: F33615-97-C-3006 |
UNIV. OF DAYTON
300 COLLEGE PARK DAYTON, OH 45469-0101 (937) 229-2919 ID#: 97WFI-011 Agency: AF Topic#: 97-007 |
| Title: Advanced Hypersonic Cruise Missile Concept | |
| Abstract: Feasibility of an advanced cruis missile concept will be evaluated. The proposed concept is based on integration of a storable fuel, dual-mode, ram-scramjet entine with a parasol-winged airframe designed for a Mach 8 cruise mission. The parasl wing is a form of wave rider which retains the conventional ogival-cylinder configuration of the missile body. Increases in lift-drag ration of 25% have been previously demonstrated experimentally (by this contractor) for this type configurtion in the Mach 3 to 5 range, as compared to conventional wing performance. The ogival-cylinder body configuration is highly advantageous for packing avionics, fuel and payload, as compared to other wave rider concepts which have highly blended wing-body configurations. On-going work on development of storable fuel, dual mode, ram-scramject engines with Mach 8 capability enables integration of realistic, non-circular engine flowpath configurations with the parasol wing in a manner which avoids the prior use of pylon mounts. CFD methods also permit evaluation of nonlinear flow interference and engine-airframe interaction effects not previously considered. The proposed Phase I effort will include development of a preliminary design, including engine-airframe integration, evaluation of aerodynamic and aerothermal loads at cruise and at selected off-design conditions and preliminary evaluation of mission performance. | |
| GENERAL THERMAL, INC.
2555 Cannon Ave Chattanooga, TN 37404 (423) 698-0948 PI: Mounir Laroussi (423) 974-5866 Contract #: F49620-97-C-0074 |
THE UNIV. OF TENNESSEE
404 Andy Holt Tower Knoxville, TN 37996 (423) 974-3466 ID#: 97AFO-007 Agency: AF Topic#: 97-002 |
| Title: Sterilization and Decontamination of Matter with a One Atmospheric Glow Discharge | |
| Abstract: The sterilization and decontamination of matter plays a very important, and sometimes vital, role in various industrial processes, and health-related applications. In many civilian and military situations, the capability to sterilize tools, liquids, foods, etc., in a rapid and effective way, could make the difference between life and death. In this context, we propose to design, build, and test a sterilization/decontamination device which out performs existing methods, in terms of effectiveness, speed, and safety. Our method is based on the generation of a uniform glow discharge at atmospheric pressure. This discharge plasma is generated by low frequency R.F. power, applied between two insulated plate electrodes. This plasma is a source of active free-radicals, charged particles, and U.V. radiation. These agents interact with microorganisms at the atomic and molecular levels, and induce lethal chemical changes in the cells. Total sterilization can be achieved in few seconds to few minutes. Since the plasma power density is relatively low, no damage occurs to the supporting medium where the unwanted microorganisms live. | |
| INNOVATIVE SCIENTIFIC SOLUTIONS, INC.
3845 WOODHURST COURT BEAVERCREEK, OH 45430 (937) 252-2706 PI: DR LARRY P GOSS (937) 252-2706 Contract #: F33615-97-C-3005 |
MASSACHUSETTS INSTITUTE OF TECH.
77 Massachusetts Ave. CAMBRIDGE, MA 02139 (617) 253-5537 ID#: 97WFI-014 Agency: AF Topic#: 97-007 |
| Title: Development and Application of an Advanced Optical Based Pressure Instrument for Low-Speed Flows | |
| Abstract: The proposed STTR program targets the development and application of advanced optical-based pressure instrumentation for low-speed (M less than 0.2) flows. The program is carefully designed for reakization of significant improvements in current pressure-paint technology. Improvements in both the pressure paints and the instrumentation for recording surface-pressure distributions will be investigated. In particular, pressure paints designed specifically for low subsonic applications will be developed. This requires an increase in paint high-pressure sensitivity (at 1 atm.), and a reduction in paint temperature sensitivity (at 1 atm.), and a reduction in paint temperature sensitivity. Instrumentation improvements will be focused on problems associated with model movement, paint uniformity, and photo-degradation. The data obtained from this instrumentation will eliminate the need for costly pressure transducers and provide continous surface-pressure measurement of models under the low-speed flows of interest. | |
| INTEGRATED COMPOSTIES, INC.
741 Neeson Road Marina, CA 93933 (408) 883-3360 PI: Joe R. Johnson (408) 883-3360 Contract #: F33615-97-C-5142 |
CALIFORNIA POLYTECHNIC STATE UNIV.
San Luis Obispo, CA 93407 (805) 756-1334 ID#: 97WMT-028 Agency: AF Topic#: 97-008 |
| Title: Affordable Tooling for Composite Structures | |
| Abstract: The processing of advanced composite components requires tooling that will perform during high temperature and pressure cycles. During these cycles, the tooling must exhibit little or no dimensional movement, retain vacuum, and be of low enough density so as not to become a source of excessive thermal gradients. Typically, a nickel alloy such as INVAR is used and will meet many of these requirements. However, its cost and delivery can be a source of concern, especially where low production numbers are anticipated. By developing a new tooling system based on existing reinforced polymer technology and new ceramic/polymer mass cast monlithic structures, all of the above desireable characteristics can be provided with far lower cost and delivery. Additionally, this type of system would offer uniform construction methods, unique business practices, and the potential for a new industrial base for advanced composite tooling systems. These systems could free the prime airframe manufacturers from the design, fabrication, maintenance, and ultimate storage of such tools. | |
| INTEGRATED MICRO INSTRUMENTS
35617 Pond Drive Fremont, CA 94536 (510) 792-9249 PI: Mark A. Lemkin (510) 792-9249 Contract #: F49620-97-C-0075 |
UNIV. OF CALIFORNIA, BERKELEY
336 Sproul Hall #5940 Berkeley, CA 94720-5940 (510) 642-8120 ID#: 97AFO-047 Agency: AF Topic#: 97-005 |
| Title: Micro-IMU for Navigation and Optical Pointing | |
| Abstract: The Air Force has an unfulfilled need for a high performance, miniature inertial measurement unit (IMU) which facilitates optical pointing and navigation. Macroscopic technology fails to deliver miniature size, while present micromachining technology fails to deliver adequate drift and noise performance. Integrated Micro Instruments proposed to manufacture a micro-IMU by micromaching novel sensors providing both miniaturization and performance. Integrated Micro Instruments was formed from the core DARPA-sponsored Berkeley Sensor & Actuator Center (BSAC) design team which produced some of the first integrated microaccelerometers and gyroscopes. This work has resulted in a medium performance micro-IMU with signal processing on a thumb nail sized silicon chip. These proven sensor architectures will be combined with a deep trench micromachining technology developed at BSAC for high performance. The extremely thick structures will dramatically increase sensitivity and hence improve cancellation. Integrating circuits with these sensors will allow drift cancellation, exceptional miniaturization, and digital output. The goal of Phase I is to prove that micromaching can produce a micro-IMU 2 inches on a side which improves optical platform pointing accuracy. Full mechanical sensor and electrical circuit design plus mechanical structure prototypes will verify feasibility and allow fully functional versions to be rapidly fabricated in Phase II. | |
| INTERNATIONAL ECOSCIENCE, INC.
201 E. Sandpointe Ave Ste 400 Santa Ana, CA 92707 (714) 434-7335 PI: Vladimir Oliker (714) 434-7335 Contract #: F49620-97-C-0062 |
UNIV. OF TENNESSEE
404 Andy Holt Tower Knoxville, TN 37996 (423) 974-2465 ID#: 97AFO-006 Agency: AF Topic#: 97-002 |
| Title: Utilizing a One-Atmosphere Uniform Glow Discharge Plasma for Biological/Chemical Agent Sterilization/Decontamination | |
| Abstract: An innovative approach to the decontamination of biological and/or chemical warfare agents is proposed. This recently developed technology involved utilizing a one atmosphere uniform glow discharge plasma (OAUGDP) as the sterilant/decontaminant. Initial laboratory results indicate a greater than six log kill of bacteria in under one minute. In addition, the highly ionizing nature of the plasma discharge is expected to quickly degrade chemical agents through energetic bond breaking mechanisms. International EcoScience, Inc. (IES), supported by the University of Tennessee, proposed to demonstrate the effectiveness of the OAUGDP technique on a selected number of stimulants for the biological/chemical agents on selected porous and non-porous surfaces. Concurrently, a comprehensive plan will be prepared detailing how to (1) make the system field compatible, (2) test the effectiveness of the system against a full spectrum of military significant chemical and biological agents, and (3) optimize the system for battlefield use. The benefits for military and commercial applications are significant; they include decontamination of military devices, both USA and allies, hospital use to control virulent organisms, and sterilization of surgical instruments. | |
| LOS GATOS RESEARCH
1685 Plymouth St., Suite 100 Mountain View, CA 94043 (415) 965-7772 PI: Pajo Vujkovic-Cvijin (415) 965-7772 Contract #: F49620-97-C-0059 |
WASHINGTON STATE UNIV.
Department of Physics Pullman, WA 99164-3140 (509) 335-9661 ID#: 97AFO-035 Agency: AF Topic#: 97-003 |
| Title: Nonlinear Optical Polymer Thin Film for the Inspection of Sub-Micrometer Electronic Circuits | |
| Abstract: A novel diagnostic instrument for reliability studies and failure analysis of microelectronic integrated circuits is proposed. The instrument combines recent advances in nonlinear optics of thin-film polymers with those of near-field optical microscopy. The capability of the technique to measure the electric field generated by a sub-micrometer size integrated electronic circuit will be demonstrated. Spatial resolution of the order of tens of nanometers, and temporal resolution of the order of hundred femtoseconds is feasible. The technique allows circuit testing in a completely noninvasive mode, making it possible to diagnose an operational integrated circuit with virtually no external disturbance. | |
| MATERIALS & ELECTROCHEMICAL RESEARCH
7960 S. Kolb Rd. Tucson, AZ 85706 (520) 574-1980 PI: Dr. W. Kowbel (520) 574-1980 Contract #: F49620-97-C-0005 |
BOSTON UNIVERSITY
25 Buick Street Boston, MA 02215 (617) 353-4365 ID#: 96AFOT004 Agency: AF Topic#: 96-001 |
| Title: Low Cost CVD Mullite Fibers | |
| Abstract: Oxide fibers offer a potential to overcome the limitations of SiC fibers. The incorporation of oxide fibers into oxide matrices is expected to result in environmentally stable oxide-oxide composites. In addition, a possible use of oxide interfacial coatings facilitates oxidation resistant pure oxide composite systems.Poor creep resistance and high cost of currently available oxide fibers greatly hinders con-Lmercial applications of oxide-oxide composites. This proposal offers a unique way of producing low cost, creep resisant mullite fibers. It builds on the accomplishments of MER on the CVR SiC fibers and in-situ fiber spreading as well as Boston University's experience with CVD mullite. It proposes to use low cost, small diameter CVR SiC fibers as a core followed up by the in-situ spreading and CVD mullite deposition. The resulting mullite fibers are expected to exhibit tensile strength of about 3 GPa combined with good creep resistance up to 1500°C. The projected cost of this new mullite fiber is in the 36 to $150 range. | |
| MATIS, INC.
1565 Adelia Place Atlanta, GA 30329 (404) 248-9926 PI: Vladimir Oliker (404) 248-9926 Contract #: F49620-97-C-0070 |
UCLA
10945 Le Conte Ave #1401 Peter Ueberroth Los Angeles, CA 90095-1406 (310) 825-0697 ID#: 97AFO-002 Agency: AF Topic#: 97-001 |
| Title: High Frequency Electromagnetic Propagation/Scattering Codes | |
| Abstract: The purpose of this work is to develop further our new geometric and numerical techniques for high frequency electromagnetic propagation/scattering calculations. These techniques are based on novel approaches to ray tracing via direct geometric methods and nonlinear partial differential equations. The new computational schemes will be used for calculation of the required geometric data, for calculation of scattering in the shadow region and elsewhere, for determination of multivalued solutions accounting for ray crossing, etc. The new techniques will be implemented into a prototype code capable of performing the calculations on fully realistic aircraft models. | |
| MAXUS STRATEGIC SYSTEMS, INC.
610 River St Hoboken, NJ 07030 (201) 963-3554 PI: Paul Marshall (201) 963-3554 Contract #: F49620-97-C-0004 |
ADVANCED TELECOM INST/SIT
Castle Point on Hudson Hoboken, NJ 07030 (201) 216-8014 ID#: 97AFO-042 Agency: AF Topic#: 97-004 |
| Title: A Situation Awareness Visualization System | |
| Abstract: Knowledge is today's most valuable resource. The Information Age has unleashed strategic imperatives for knowledge tools capable of managing information overload-too much information arriving too fast for the brain to absorb unassisted. Unless presented effectively, a deluge of data will obscure the vantage point which topsight-a central understanding of the 'big picture'-requires.METAPHOR MIXER, the Principal Investigator's patent-pending information fusion and visualization technology, renders information into knowledge and understanding by taking advantage of people's visual smarts: resulting in better decision making and situation awareness. As Clausewitz observed, "Knowledge must be so absorbed into the mind that it almost ceases to exist in a separate, objective way." METAPHORE MIXER excels at visualizing large, multivariate databases. It graphically depicts vast amounts of real-time information as data terrains: dynamic, visual icons populating a spatially structured three dimensional space. The resulting visual grammar communicates visual, auditory and interactive cues through an immersive user interface. METAPHOR MIXER implementations allow users to configure real time information from many sources and enables decision makers to identify and select data items, navigate the data terrain and spot emerging patterns and anomalies.As part of this effort, the Advanced Telecommunications Institute of Stevens Institute of Technology will develop semi-automated reasoning tools, including information fusion, filtering and verification tools as well as intelligent agents, for advanced cueing of threat and target detection. These cognitive enhancement components will provide an intelligent push-pull of command and control data. | |
| METROLASER, INC.
18006 Skypark Circle, Ste. 108 Irvine, CA 92614 (714) 553-0688 PI: Jeffery Segall, Phd (714) 553-0688 Contract #: F49620-97-C-0051 |
UNIV. OF ARIZONA
1630 E University Tucson, AZ 85721-0094 (520) 621-3513 ID#: 97AFO-034 Agency: AF Topic#: 97-003 |
| Title: Novel Organic Polymer Films for Real-Time Holographic Signal Processing | |
| Abstract: This proposal is to develop and commercialize new technologies based on state of the art photorefractive organic polymer films recently developed at the U. of Arizona. These novel polymer films make it possible to build an optical device that can perform fast, high resolution, whole field (imaged), profile measurements of three-dimensional (3D) objects. The quantitative 3D measurement system has numerous commercial applications in the aerospace, manufacturing and medical industries. The phase I study will fabricate custom polymer materials, demonstrate feasibility of the measurement system, and solidify a commercialization plan. Phase II research will optimize the polymer materials for this application and build a prototype measurement system. The proposed measurement system has many commercially viable applications including: non-destructive inspection of wear on critical machinery, automated 3-D manufacturing inspection, integrated with CAD/CAM for automated reproduction of complex shapes, and measurement of physical feature for medical applications. | |
| MONTEC ASSOC., INC.
P.O. Box 4182; 1850 Four Mile Vue Road Butte, MT 59702 (406) 494-5555 PI: Lawrence C. Farrar (406) 494-5555 Contract #: F49620-97-C-0076 |
TEXAS TECH UNIV.
Office of Research Services, 203 Holden Lubbock, TX 79409-1035 (806) 742-3884 ID#: 97AFO-008 Agency: AF Topic#: 97-002 |
| Title: Plasma Destruction of Battlefield Chermical and Biological Warfare Agents | |
| Abstract: The innovative application of plasma is proposed for the destruction of deadly chemical and biological warfare agents. The technology approach consists of employing an electric arc to establish a plasma forming gas to efficiently heat a plume used to kill the harmful agents. The proposed approach will result in t heir rapid destruction, e.g., within a few seconds. The Phase I objective is to demonstrate that the technology can effectively destroy surrogate chemical and biological warfare agents. In Phase I will evaluate three different plasmas for their effectiveness to destroy harmful agents and establish durability of the plasma arcjet technology for this application. The approaches to be evaluated are a nitrogen plasma, an air plasma and a novel water plasma arcjet. The Phase II project will result in a prototype system suitable for field application of the proposed technology. Anticipated benefits include the development of an effective system that will allow rapid and effective decontamination of surfaces that have been contaminated with chemical and biological warfare agents. No harmful byproducts will be produced. | |
| OPTIVISION, INC.
3450 Hilview Avenue Palo Alto, CA 94304 (415) 855-0220 PI: Richard a. Hill (415) 855-0225 Contract #: F49620-97-C-0060 |
NORTHEASTERN UNIV.
423 Lake Hall/360 Huntington Ave boston, MA 02115 (617) 373-4587 ID#: 97AFO-036 Agency: AF Topic#: 97-003 |
| Title: Development of Highly Active Electro-Optic Polymers for In-Line Fiber Photonic Devices | |
| Abstract: Polymeric in-line fiber (PILF) devices open up a new region of parameter space for electro-optic (EO) polymer materials development. The PILF device structure incorporates a short, controllable interaction length with the EO polymer which makes it possible to tolerate absorption losses as high as 100 dB/cm and take advantage of resonant enhancement to greatly boost the achievable EO response. Optivision and Northeastern University, with the University of California, Davis as a key collaborator, propose to develop novel high-temperature-stable, highly active EO polymer materials with properties optimized for PILF device applications. The effort will take advantage of established Optivision expertise in PILF device design and testing, Northeastern University expertise in the synthesis of EO chromophores and polymers, and University of California, Davis expertise in EO polymer processing and characterization. In the proposed effort, we will investigate: (1) processing and characterization methodologies for the subject EO chromophores and polymers; (2) device level testing of the developed EO polymers using PILF structures; (3) highly active nonlinear optical chromophores; (4) synthetic strategies for production of novel high-temperature-stable, highly active EO polymers during Phase II; and (5) high level design of a particular PILF device to be built during Phase II. | |
| PACIFIC WAVE INDUSTRIES, INC.
10911 Weyburn Avenue Ste 222 Los Angeles, CA 90024 (310) 209-0777 PI: Boris Tsap (310) 209-0777 Contract #: F49620-97-C-0064 |
UNIV. OF SOUTHERN CALIFORNIA
Dept of Contracts/Grants; University Par Los Angeles, CA 90089-1147 (213) 740-7762 ID#: 97AFO-031 Agency: AF Topic#: 97-003 |
| Title: New Directions in Nonlinear Materials for Electro-optic Devices | |
| Abstract: The University of Southern California (USC) and Pacific Wave Industries propose a systematic attempt at integration of chromophores with large first hyperpolarizabilities into optical quality thin films characterized by optimized electro-optic coefficients. This will be accomplished by the design and synthesis of optic activity due to centric ordering under the influence of London forces. Initial derivatization of chromophores should also improve compatibility with conventional spin casting solvents so that high optical quality films can be achieved by spin casting. Modification of both chromophores and crosslinking reagents will reduce chromophore migration and phase separation under electric field poling and thus should lead to reduced poling-induced optical loss. In this highly interactive program these new materials will be extensively measured for their nonlinearities, optical losses, and thermal properties. The goal will be to define new directions for the next generation of commercial ultrahigh frequency devices. | |
| PD-LD, INC.
243 Wall Street Princeton, NJ 08540 (609) 924-7979 PI: Vladimir S. Ban (609) 924-7979 Contract #: F49620-97-C-0066 |
PRINCETON UNIV.
Engineering Quadrangle Princeton, NJ 08540 (609) 258-3090 ID#: 97AFO-028 Agency: AF Topic#: 97-003 |
| Title: Self Assembly of Highly Non-Linear Organic Films Grown by a New Method: Organic Chemical Beam Deposition | |
| Abstract: In this proposal, we describe a newly invented growth method for depositing thin films of highly nonlinear organic films such as DAST. The new method called Organic Chemical Beam Deposition (OCBD) had numerous advantages, among them: i. independent regulation of input paressures of reactants; ii. growth at reduced pressures, fro better tckness and uniformity control iii. sharper interfaces between subsequent layers led doping of films We also discuss the use of specially treated substrates, which promote self-assembly of grown films. The ultimate goal is to produce optical quality NLO organic films suitable for the production of high performance fiber optic modulators, which our company intends to manufacture. The team in this effort will be lead by Professor Stephen R. Forrest, Director, ATC/POEM, Professor Jeffrey Schwartz, Chemistry Department, Princeton University and Dr. Vladimir S. Ban, President,PD-LD Inc., Princeton, New Jersey. | |
| PLASMION CORP.
50 Harrison Street Hoboken, NJ 07030 (201) 963-5450 PI: Steven I. Kim (201) 963-5450 Contract #: F49620-97-C-0073 |
STEVENS INSTITUTE OF TECH.
Castle Point Station Hoboken, NJ 07030 (201) 216-5229 ID#: 97AFO-014 Agency: AF Topic#: 97-002 |
| Title: A DC Steady Current Atmospheric Pressure Discharge for Battlefield Chem/Bio Decontamination | |
| Abstract: Recently several researchers demonstrated the feasibility of high (atmospheric) pressure glow discharge (HPG) for various practical applications. However, most of them is utilizing high voltage pulse (>5kV rms), which is not desirable in practical applications for many reasons. Kunhardt et al at Stevens Institute of Technology has invented a novel mechanism to generate a stable HPG discharge. The basis of this approach is the suppression of the glow-to-arc transition instability by creating a self-stabilizing cathode fall and thereby preventing the formation of a cathode spot. This is achieved simply by placing a perforated thin dielectric on the cathode surface. Due to the unique current limiting mechanism of a micro-channel, one can actually maintain the discharge in a DC steady current mode. Thus, the reactive radicals and ions would be much more power effective for decontamination. In the is Phase I, we will investigate the application of mechanically perforated dielectric disk or film stabilizing DC discharges. The bacterium Bacillus subtilis will be used as an indicator of the efficacy of the plasma. Mobile powered supply electronics will be designed for field-portability. In Phase II, prototype field-portable atmospheric pressure glow discharge plasma decontamination system will be fabricated and demonstrate the full capability of decontamination against realistic bio/chemical warfare agent. | |
| PRODUCTION PRODUCTS MANUFACUTRING & SALE
1285 Dunn Road St. Louis, MO 63138 (314) 868-3500 PI: Kelli Corona-Bittick (314) 868-3500 Contract #: F33615-97-C-5144 |
SOUTHERN RESEARCH INST.
757 Tom Martin Drive Birmingham, AL 35211 (205) 581-2977 ID#: 97WMT-022 Agency: AF Topic#: 97-008 |
| Title: Affordable Tooling for Composite Structures | |
| Abstract: Production Products and Soutern Research Institute will develop composite processing tools and tooling approaches that offer lower cost and shorter fabrication lead times with adequate durability and thermal performance characteristics. We will focus on a novel localized resistive heating concept which applies heat only to the part being processed and does not heat the tool except at the tooling surface. Tooling costs have been identified as a high cost area expecially in the prototype environment and as production rates continue to drop. Our composite tooling approach will produce dimensionally accurate parts, (match the coefficient of thermal expansion of the composite part), be affordable to demonstrate the tooling approach in a prototype environment, and be durable enough to meet the requirements of production use. We will develop composite processing tools that are low cost, highly durable, have compatible thermal performance characteristics, and short fabrication lead times. The new tooling technology and methodology will address the cost of fabricating both the tool face and substructure. It will provide all the capabilities of internal tooling point, scribe lines, and vacuum ports as available on current INVAR cure tools. In Phase I, we will develop and evaluate tooling system concepts and designs that provide hgih performance cure tools. Phase I will provide a description of the tooling approach, preliminary designs of the tooling system, thermal analysis of predicted thermal performance, and cost anlaysis of anticipated tooling fabrication costs. In Phase II: We will develop and demonstrate the new composite processing tool system on a significantly complex tool and verify the Phase I thermal and cost analysis predictions and demonstrate the tooling performance. | |
| SENTEL TECHNOLOGIES LLC
NE 1615 Eastgate Blvd Pullman, WA 99163 (509) 334-5190 PI: David Walker (509) 334-5190 Contract #: F49620-97-C-0063 |
WASHINGTON STATE UNIV.
Office of Grant R&D Pullman, WA 99164 (509) 335-9661 ID#: 97AFO-018 Agency: AF Topic#: 97-003 |
| Title: Electro-Optic Fiber | |
| Abstract: Electro-optic modulators and switches are an integral part of many photonic systems. This project will develop an electro-optic fiber that will be used as a basic building block for in-line electro-optic devices. Electro-optic fibers will overcome many of the drawbacks associated with conventional planar designs. They will have lower overall optical loses for the final packaged device and greatly reducing end unit cost. Pigtailing will be reduced to fiber splicing (a well-known, routine commercial operation costing well under $1 per splice compared to $100's for pigtailing chips). Completion of Phase I research will set the foundation to develop fiber optic in-line sagnac modulators and other devices in Phase II research. Using electro-optic fibers, devices may be fabricated directly in the fiber, integrated by fusing fibers or using multiple cores, or used in hybrid technologies such as combining electro-optic fibers with other active fiber devices such as Erbium Doped Fiber Amplifiers. | |
| SURFACES RESEARCH
8330 Melrose Drive Lenexa, KS 66214 (913) 541-1221 PI: Paul Sutor (913) 541-1221 Contract #: F49620-97-C-0077 |
AUBURN UNIV.
307 Samford Hall Auburn, AL 36849 (334) 844-4438 ID#: 97AFO-056 Agency: AF Topic#: 97-006 |
| Title: Development of High Temperature Solid Lubricant Coatings | |
| Abstract: The US Air Force requires solid lubricant coatings with friction coefficients at or below 9.1 from 25°C to 815°C. Surfaces Research has developed the first bonded coating to meet this goal. Other Surface Research coatings are close to meeting this goal.The first objective of this program is to develop the parameters for sputter deposition of the best coating. Sputter-deposited coatings will have better coating-substrate adhesion, thus better wear life.The second objective is to systematically study related solid lubricant coatings, to elucidate the mechanisms by which low friction at 25°C is produced by certain high-temperature lubricants. Chemical composition, crystal structure and melting point/hardness will be evaluated for their relative contributions to this behavior.Insights into these mechanisms are expected to open the door to further breakthroughs in wide temperature range low friction coatings. | |
| TDA RESEARCH, INC.
12345 West 52nd Avenue Wheat Ridge, CO 80033 (303) 930-2301 PI: Jack D. Sibold (303) 930-2319 Contract #: F49620-97-C-0004 |
LEHIGH UNIVERSITY
Office of Research & Sponsored Programs Bethlehem, PA 18015 (610) 758-3021 ID#: 96AFOT001 Agency: AF Topic#: 96-001 |
| Title: Low Cost Creep Resistant Alumina Fibers for High Temperature CMC Applications | |
| Abstract: To meet the demanding advanced aerospace engine conditions (extended time near 1500°C) , materials are needed that possess high strength, toughness, chemical stability in oxidizing environments, and stable thermomechanical properties at high temperatures. Ceramic oxides are the most promising materials for these demanding conditions. Unfortunately, monolithic ceramics are too brittle and ceramic matrix composites (CMC) are too expensive.TDA Research has identified a low cost precursor route to ceramic fibers, interfacial coatings, and matrix materials for CMC's. The precursor utilizes low cost raw materials (£$2/lb). Lehigh University has developed creep resistant Y and La doped polycrystalline alumina compositions that can be readily made by TDA's precursor technology. In Phase I we will utilize this precursor technology to make low cost creep resistant doped alumina fibers. The fibers will be creep tested by Lehigh using bend stress relaxation testing, and NASA Lewis will perform limited tensile creep testing on the best composition. Lehigh will also model the dopant segregation to grain boundaries by computer simulation to relate microstructure to thermomechanical properties. | |
| TECHNOLOGY ASSESSMENT & TRANSFER, INC.
133 Defense Highway, Ste 212 Annapolis, MD 21401 (301) 261-8373 PI: Frank Kustas (301) 261-8373 Contract #: F49620-97-C-0056 |
SOUTHWEST RESEARCH INST.
6220 Culebra Road San Antonio, TX 78228 (210) 522-2235 ID#: 97AFO-054 Agency: AF Topic#: 97-006 |
| Title: Ion Beam Deposited Metal Oxide and Fluoride Composite Coatings for High Temperature Tribological Applications | |
| Abstract: Development of advanced solid lulbricant coatings for future-generation gas-turbine engine components represents an enabling technology. The reliability and performance of moving mechanical hardware for gas turbine engines in constrained by the method(s) of lubrication. Increased operational requirements (higher temperatures and pressures) place stringent demands on coating performance. Consequently, a new generation of adaptive lubricant coatingns with multiple-cycle lifetime, needs to be developed. Durable high-temperature capable coatings for bearings and turbine blade/root disk areas of tas turbine engines and for back-up bearings for magnetic suspension systems, are desperately needed. Technology Assessment & Transfer and Southwest Research Institute propsoe to develop innovative ion-beam assisted deposition (IBAD) of multilayer coatings that will form adaptive lubricants at elevated temperatures and dispersed high-temperature-capable solid-lubricant islands in a lower-temperature-caple matrix. Performance comparisions between IBAD and magnetron-sputtered coatings will be performed in Phase I. Coating characterization will include thermal cycling, scratch-adhesion, elevated-temperature wear tests, and coating surface analysis. The best-performing adaptive solid lubricant or dispersed solid-lubricant coating will be applied to hardware components to demonstrate component processing. | |
| TECHNOSOFT, INC.
4434 CARVER WOODS DR CINCINNATI, OH 45242 (513) 985-9877 PI: MR TERRENCE A WEISSHAAR (765) 494-5975 Contract #: F33615-97-C-3216 |
PURDUE RESEARCH FOUNDATION
1021 HOVDE HALL RM 324 W LAFAYETTE, IN 47907 (765) 494-6200 ID#: 97WFI-023 Agency: AF Topic#: 97-007 |
| Title: Air Vehicle Technology -- Modeling and Simulation | |
| Abstract: The aircraft design process is complex, highly iterative, and time-consuming and contributes significantly tothe overall engineering cost. Aircraft specifications including performance, weight, cost, and other aspects must be addressed to create an effective design. The multidisciplinary nature of the engineering process, which includes design, analysis, and manufacturing, follows a regimented path that is initiated by a conceptual design, evolves into a preliminary design, and is followed by a detailed design for production. Many critical design decisions are made at the conceptual level where the least amount of information is available to assist in the design evaluation and tradeoffs. The proposed objective is the development of a comprehensive design environment for modeling and simulating aircraft systems, seamlessly integrating different engineering processes. The proposed system architecture will support a single underlying object-oriented architecture with demand-driven computation and dependency tracking that allows information to feed forward and backward among the various engineering processes as the design evolves. In Phase I, the system architecture will be completed including: 1) modeling aspects of the conceptual and preliminary phases in an aircraft design, and 2) demonstrating the feasibility of such a system with a focus on the application of composite materials to wing structures. | |
| TPL, INC.
3921 Academy Pkwy, North NE Albuquerque, NM 87109-4416 (505) 342-4421 PI: Douglas J. Taylor (505) 342-4428 Contract #: F49620-97-C-0065 |
SOUTHWEST RESEARCH INST.
6220 Culebra San Antonio, TX 78228 (210) 522-2238 ID#: 97AFO-049 Agency: AF Topic#: 97-006 |
| Title: Sol-Gel Derived,Nanostructured Oxide Lubricant Coatings | |
| Abstract: The reduction of friction and wear is essential to the proper operation of all modern machines. Gas turbine engines are approaching operating temperatures and speeds that exceed the capacity of current lubricant materials. Solid coatings that can provide lubrication from sub-ambient to 850°C would allow exploitation of recent performance gains.TPL proposes innovative, multi-component solid lubricant coatings made via inexpensive sol-gel routes to solve the problem of high temperature wear. This wet chemical approach uses synthesis on the molecular level, which allows the ability to tailor the nanostructure of the coatings. Preliminary research on the compositions to provide wear resistance was performed at the Southwest Research Institute and will be incorporated into this program.TPL will demonstrate the feasibility of depositing coatings to reduce friction and wear by sol-gel methods. The compositions previously discovered for this application will be the starting point for composition/property optimization. The coefficient of friction, wear resistance and microstructure will be characterized to prove the proposed concept.TPL has extensive experience and resources in sol-gel technology, and is capable of performing the proposed research. The P.I. is a pioneering researcher in multi-component sol-gel processing, firing techniques and characterization. | |
| UES, INC.
4401 Dayton-Xenia Rd. Dayton, OH 45432-1894 (937) 426-6900 PI: Rabi Bhattacharya (216) 687-3501 Contract #: F49620-97-C-0054 |
CLEVELAND STATE UNIV.
E. 24th Street, Stillwell Hall 455 Cleveland, OH 44115 (216) 687-3501 ID#: 97AFO-048 Agency: AF Topic#: 97-006 |
| Title: Developmente of High Temperature Solid Lubricant Coatings | |
| Abstract: Solid lubricant coatings are of interest for applications where components are exposed to both low and high temperatures, vacuum, oxidizing environment and radiations. Most common solid lubricant coatings are useful for only a narrow range of temperatures. Known solid lubricants for high temperature applications (>500°C) exhibit a high friction coefficient, >0.2; and, they are usually abrasive at low temperature. There is a great need, therefore, to develop solid lubricant coatings that possess low friction properties over a wide range of temperature. UES proposes to develop solid lubricant coatings for applications over a wide range of temperature by using an adaptive composite approach where a common solid lubricant such as WS2 will be mixed with an oxide such as cesium tungstate (Cs2WO4). WS2 will provide lubrication in air up to about 450°C while the reaction product of cesium tungstate and WS2, i.e., cesium oxythiotungstate (Cs2WO3), will provide higher temperature lubrication. Bias sputtering will be used to deposit dense composite coatings. Coatings will be characterized for composition, chemistry, friction and wear. | |
| WAUKESHA FOUNDRY, INC.
1300 Lincoln Ave. Waukesha, WI 53186 (414) 542-0741 PI: Bill Norris (414) 542-0741 Contract #: F33615-97-C-5143 |
MILWAUKEE SCHOOL OF ENGINEERING
1025 N. Broadway Milwaukee, WI 53202-3109 (414) 277-7416 ID#: 97WMT-037 Agency: AF Topic#: 97-008 |
| Title: Advanced Casting Technology for Low Cost Composites | |
| Abstract: For INVAR lay-up tools of complex geometry, casting the tool face near net shape and machining the tools surface has proven to be the low cost manufacturing method. Cast face sheets offer consistent finsished thickness, resulting in uniform heat transfer during the composite cure cycle, allowing short cure cycle times.There will be three main areas of investigation.1. Primary emphasis will be directed toward patternless molding as a method to significantly reduce costs and lead times of INVAR lay-up tool casting by eliminating hard pattern equipment.2. The production of thinner cast face sheets will also be investigated as a method to reduce casting cost and machining cost and lead time.3. Integrally cast stiffeners will be investigated as a method to reduce cost and lead-time of tool sub-structures and to improve the heat transfer properties of the tools.A test article will be designed and produced to test the validity of computer based simulations. The probability of success is high as these goals can be accomplished by the novel application of existing technologies | |
| WRIGHT MATERIALS RESEARCH CO.
3591 Apple Grove Dr. Beavercreek, OH 45430 (937) 643-0007 PI: S.C. Tan (937) 643-0007 Contract #: F33615-97-C-5152 |
UNIV. OF DAYTON RESEARCH INSTITUTE
300 College Park Dayton, OH 45469 (937) 229-2919 ID#: 97WMT-025 Agency: AF Topic#: 97-008 |
| Title: Developing of a Flexible Mandrel and Semi-Flexible Tooling for the Fabrication of Integrated Composite Strucutres | |
| Abstract: Affordability has become one of the most important issues in composites utilization for aircraft and aerospace industry. Cost analyses show that tooling and assembling are the major drivers. Conventional tooling for composite fabrication has a fixed geometry and are expensive due to low volume production. We (WMR and UDRI) propose to develop a flexible mandrel and a semi-flexible tooling for the fabrication of integrated composite structures. The proposed flexible mandrel and the semi-flexible tooling are reusable to process composite structures with different shapes without time-consuming machining. Resin transfer molding or tape laying technique will be used with this flexible tooling to fabricate example integrated hat-shape structures. The capability of processing integrated composite structures will have the advantage of reducing part counts, thereby saving assembling costs. The tooling cost, processing cycle and lead time will all be dramatically reduced (up to orders of magnitude) using the proposed flexible mandrel and semi-flexible tooling technique. In this Phase I project a prototype flexible mandrel and semi-flexible tooling system will be constructed and composite parts will be fabricated as a feasibility study. NDE, physical and mechanical tests will be performed to evaluate the quality of the parts fabricated. | |
| BIOELASTICS RESEARCH, LTD.
1075 South 13th St Birmingham, AL 35205 (205) 934-9512 PI: Dr. Jie Xu (205) 934-9513 Contract #: DAAG55-97-C0049 |
AUBURN UNIV.
101 Life Sciences Building Auburn University, AL 36849 (334) 844-4784 ID#: 37440 Agency: ARMY Topic#: 97-005 |
| Title: Production of Biodegradable Plastic Protein-based Polymers in Plants | |
| Abstract: Contemporary petroleum-based plastics derive from a non-renewable resource and present environmental problems both in their production and disposal. Desirable would be plastics obtainable from renewable resources and of benignproduction and disposal. Protein-based polymers, polymers of repeating peptide sequences, have been produced using recombinant DNA technology and expressed in both E. coli and tobacco plants. With the correct sequence and composition, the protein-based polymers can be regular and inverse thermoplastic. The latter provides the potential for programmed biodegradation with half-lives ranging from days to decades, and the former allows that the polymers can be processed as melts (e.g. for injection molding and fiber extrusion). Thus, the broad objective of this proposal is for plant reproduction of programmable, biodegradable plastics. The technical objectives are: 1) to use recombinant DNA technology for achieving high level expression in E. coli of suitably designed plastic protein-based polymers, 2) to utilize the purified protein-based polymers for physical characterization of melting points, decomposition points, tensile strengths, half-livesetc., 3) to produce monoclonal antibodies to the chosen E. coli-produced protein-based polymers in order to follow expression in the tobacco plant, and 4) To develop producion in tobacco plants of the preferred plastic protein-based polymers that had demonstrated both the desired physical properties and high level expression by E. coli fermentation. Environmental problems require the development of biodegradable plastics which can be produced from renewable resources without use of toxic and hazardous chemicals and which will help to solve the increasing global disposal burden. The extent of this need is expressed in the Maritime Pollution (MARPOL) treaty preventing disposal of plastics at sea as of 1995, and in the Plastic, Pollution Research and Control Act of 1987 (Public Law 100-220). It is quite apparent that biodegradable plastics would gracefully become a source of food rather than a cause of death for marine life. Furthermore, the demand for an agricultural product of the scale of a range of biodegradable plastics couldContemporary petroleum-based plastics derive from a non-renewable resource and present environmental problems both in their production and disposal. Desirable would be plastics obtainable from renewable resources and of benignproduction and disposal. Protein-based polymers, polymers of repeating peptide sequences, have been produced using recombinant DNA technology and expressed in both E. coli and tobacco plants. With the correct sequence and composition, the protein-based polymers can be regular and inverse thermoplastic. The latter provides the potential for programmed biodegradation with half-lives ranging from days to decades, and the former allows that the polymers can be processed as melts (e.g. for injection molding and fiber extrusion). Thus, the broad objective of this proposal is for plant reproduction of programmable, biodegradable plastics. The technical objectives are: 1) to use recombinant DNA technology for achieving high level expression in E. coli of suitably designed plastic protein-based polymers, 2) to utilize the purified protein-based polymers for physical characterization of melting points, decomposition points, tensile strengths, half-livesetc., 3) to produce monoclonal antibodies to the chosen E. coli-produced protein-based polymers in order to follow expression in the tobacco plant, and 4) To develop producion in tobacco plants of the preferred plastic protein-based polymers that had demonstrated both the desired physical properties and high level expression by E. coli fermentation. Environmental problems require the development of biodegradable plastics which can be produced from renewable resources without use of toxic and hazardous chemicals and which will help to solve the increasing global disposal burden. The extent of this need is expressed in the Maritime Pollution (MARPOL) treaty preventing disposal of plastics at sea as of 1995, and in the Plastic, Pollution Research and Control Act of 1987 (Public Law 100-220). It is quite apparent that biodegradable plastics would gracefully become a source of food rather than a cause of death for marine life. Furthermore, the demand for an agricultural product of the scale of a range of biodegradable plastics could | |
| CFD RESEARCH CORP.
3325 Triana Blvd Huntsville, AL 35805 (205) 536-6576 PI: Dr. Anantha Krishnan (205) 536-6576 Contract #: DAAG55-97-C0047 |
MASSACHUSETTS INSTITUTE OF TECH.
77 Massachusetts Ave. Cambridge, MA 02139 (617) 253-3884 ID#: 37471 Agency: ARMY Topic#: 97-004 |
| Title: Chemical Process Models for Supercritical Water Oxidation of Toxic Organic Materials | |
| Abstract: The proposed work will develop and integrated, experimentally tested process model for Supercritical Water Oxidation (SCWO) of toxic organic waste, The model will include (i) advanced thermodynamic models for local fluid properties, (ii) advanced kinetic models for waste hydrolysis and oxidation in SCW, (iii) models for salt formation and deposition on surfaces, and (iv) a general purpose commercial Computational fluid Dynamics (CFD) code capable of simulating fluid transport, heat/mass transfer, gas/surface chemistry and particle transport/deposition in the reactor. In addition, the above models will be interfaced to a process simulator to generate equipment design parameters for major items upstream and downstream of the reactor and to perform an economic analysis consisting of capital and operating costs. The work will be performed by CFD Research Corporation (CFDRC), OLI Systems, Inc. (OLI) and the MIT Energy Laboratory (MIT). Phase I will demonstrate proof-of-concept coupling of OLI thermodynamic models and MIT kinetic and salt formation/deposition models into CFDRC's general purpose commercial code, CFD-ACE. The coupled code will be tested against simulant waste destruction observed in an MIT bench-top reactor. A preliminary interfacing with a process simulator, ASPEN PLUS will also be accomplished during Phase I. The Phase II work will focus on further refinements to the physical models, detailed validation studies and demonstration of the software on a production SCWO systems. The proposed development of a chemical process model will be an enabling technology to facilitate the commercialization and broader application of SCWO processes for the destruction of chemically complex wastes. This will have military applications (for the cleanup of toxic chemical warfare agents as well as civilian applicaitons (fir the disposal of organic wastes from chemical industries , municipal sewage, etc.). The proposed work will develop and integrated, experimentally tested process model for Supercritical Water Oxidation (SCWO) of toxic organic waste, The model will include (i) advanced thermodynamic models for local fluid properties, (ii) advanced kinetic models for waste hydrolysis and oxidation in SCW, (iii) models for salt formation and deposition on surfaces, and (iv) a general purpose commercial Computational fluid Dynamics (CFD) code capable of simulating fluid transport, heat/mass transfer, gas/surface chemistry and particle transport/deposition in the reactor. In addition, the above models will be interfaced to a process simulator to generate equipment design parameters for major items upstream and downstream of the reactor and to perform an economic analysis consisting of capital and operating costs. The work will be performed by CFD Research Corporation (CFDRC), OLI Systems, Inc. (OLI) and the MIT Energy Laboratory (MIT). Phase I will demonstrate proof-of-concept coupling of OLI thermodynamic models and MIT kinetic and salt formation/deposition models into CFDRC's general purpose commercial code, CFD-ACE. The coupled code will be tested against simulant waste destruction observed in an MIT bench-top reactor. A preliminary interfacing with a process simulator, ASPEN PLUS will also be accomplished during Phase I. The Phase II work will focus on further refinements to the physical models, detailed validation studies and demonstration of the software on a production SCWO systems. The proposed development of a chemical process model will be an enabling technology to facilitate the commercialization and broader application of SCWO processes for the destruction of chemically complex wastes. This will have military applications (for the cleanup of toxic chemical warfare agents as well as civilian applicaitons (fir the disposal of organic wastes from chemical industries , municipal sewage, etc.). | |
| LUMIN, INC.
PO Box 11704 Blacksburg, VA 24062-1704 (540) 953-4274 PI: Mark Jones (540) 953-4268 Contract #: DAAG55-97-C0048 |
VIRGINIA POLYTECHNIC INST. & STATE UNIV.
301 Burress Hall Blacksburg, VA 24062-1704 (540) 231-5281 ID#: 37424 Agency: ARMY Topic#: 97-001 |
| Title: Fiber Optic Vapor-Phase Sensor Arrays Processed by Neural Networks for Mine Detection | |
| Abstract: A novel optical limiting device is proposed for the protection of optical sensors against laser threat. The new device has a compact pre-fabricated diffraction grating which is index-matched by a nonlinear liquid and hence made invisible to weak light. Strong light rapidly causes index mismatch, revives the grating, diffracts light away, and provides effective and immediate protection to the sensor. Advantages of the new device include simple and compact structure, broadband response, infrared cutoff, fast protection, high damage dynamic range, and high linear transmission. The break-through technology has significant potential applications. Companies from California, Mississippi, and Florida have shown interests of offering their resources to support Phase II and III work. The business market estimation and profit expectations are impressive. Preliminary feasiblity of the concept are supported by theoretical analyses and experimental evidence. Proposed tasks of Phase I have been described in detail. the proposed Principal Investigator, Dr. Hua-Kuang Liu, a fellow of both the OSA and SPIE, is a prolific inventor in optics and has authored over 200 papers. The research team has world renowned scientists from top national laboratories. The cooperative academic, industrial, and business effort poses good probability of success of technology transfer for enhancement of US competitiveness in the world economy. The new optical limiting devices using less expensive nonlinear materials may be used for civilian applications such as CCD camera protection and laser processing safety for human operators. With proper ultra-sensitive non-linear liquid, the device may also be used for head beam glare reduction for night automobile driving and sun light diversion for building windows. Private industry including the Science Applications International Corporation, Standard Packaging, Inc., and the Gulf Coast Alliance for Technology Transfer have shown interests in using their resources to support the Phase II and Phase III efforts of the innovation. A novel optical limiting device is proposed for the protection of optical sensors against laser threat. The new device has a compact pre-fabricated diffraction grating which is index-matched by a nonlinear liquid and hence made invisible to weak light. Strong light rapidly causes index mismatch, revives the grating, diffracts light away, and provides effective and immediate protection to the sensor. Advantages of the new device include simple and compact structure, broadband response, infrared cutoff, fast protection, high damage dynamic range, and high linear transmission. The break-through technology has significant potential applications. Companies from California, Mississippi, and Florida have shown interests of offering their resources to support Phase II and III work. The business market estimation and profit expectations are impressive. Preliminary feasiblity of the concept are supported by theoretical analyses and experimental evidence. Proposed tasks of Phase I have been described in detail. the proposed Principal Investigator, Dr. Hua-Kuang Liu, a fellow of both the OSA and SPIE, is a prolific inventor in optics and has authored over 200 papers. The research team has world renowned scientists from top national laboratories. The cooperative academic, industrial, and business effort poses good probability of success of technology transfer for enhancement of US competitiveness in the world economy. The new optical limiting devices using less expensive nonlinear materials may be used for civilian applications such as CCD camera protection and laser processing safety for human operators. With proper ultra-sensitive non-linear liquid, the device may also be used for head beam glare reduction for night automobile driving and sun light diversion for building windows. Private industry including the Science Applications International Corporation, Standard Packaging, Inc., and the Gulf Coast Alliance for Technology Transfer have shown interests in using their resources to support the Phase II and Phase III efforts of the innovation. | |
| PAUL HOLLAND & ASSOC., INC.
5123 Virginia Way, Ste C-21 Brentwood, TN 37027 (615) 221-9047 PI: Dr. Robert Tryon (615) 221-9047 Contract #: DAAG55-97-C0053 |
VANDERBILT UNIV.
512 Kirkland Hall Nashville, TN 37240 (615) 322-2631 ID#: 37448 Agency: ARMY Topic#: 97-009 |
| Title: Reliability-Based Modeling and Analysis of Advanced Composites | |
| Abstract: The proposed research will develop a probabilistic analysis framework incorporating current aerostructure industry composite laminate design methodologies to predict the reliability of composite structures. The research will consider the reliability ased composite design methodology as being divided into two distinct but closely coupled modeling techniques. The first is the structural model which uses finite element analysis to determine the global and ply level response of the structure. The second modeling technique is the failure models which are closely coupled with the structural model. The failure models which address both initial and progressive damage, may be in the form of maximum stress/strain, interactive criteria, or more specific models which have been developed by the aerostructure manufacturers. Using an iteractive process, the damage states will be incorporated into the structural models to determine the distribution of stiffness reduction and delamination buckling loads. System reliability methods such as branch and bound technique and efficient Monte Carlo simulation will be used with probabilistic finite element methos\ds to determine progressive damage states and residual strength. The research will link state-of-th-art laminate design techniques with failure models. This effort has the potential for applicaiton to the engineering tasks required for the development of new rotorcraft using modern composite materials and technologies, and is especially relevant to the areas of damage tolerance and crashwothiness. The proposed research will yield a methodology and software that would greatly improve both our physical understanding and analytical capability in this area. The proposed research will develop a probabilistic analysis framework incorporating current aerostructure industry composite laminate design methodologies to predict the reliability of composite structures. The research will consider the reliability ased composite design methodology as being divided into two distinct but closely coupled modeling techniques. The first is the structural model which uses finite element analysis to determine the global and ply level response of the structure. The second modeling technique is the failure models which are closely coupled with the structural model. The failure models which address both initial and progressive damage, may be in the form of maximum stress/strain, interactive criteria, or more specific models which have been developed by the aerostructure manufacturers. Using an iteractive process, the damage states will be incorporated into the structural models to determine the distribution of stiffness reduction and delamination buckling loads. System reliability methods such as branch and bound technique and efficient Monte Carlo simulation will be used with probabilistic finite element methos\ds to determine progressive damage states and residual strength. The research will link state-of-th-art laminate design techniques with failure models. This effort has the potential for applicaiton to the engineering tasks required for the development of new rotorcraft using modern composite materials and technologies, and is especially relevant to the areas of damage tolerance and crashwothiness. The proposed research will yield a methodology and software that would greatly improve both our physical understanding and analytical capability in this area. | |
| PHYSICAL OPTICS CORP.
20600 Gramercy Pl, Bldg 100 Torrance, CA 90501 (310) 320-3088 PI: Dr. Lothar U. Kempen (310) 320-3088 Contract #: DAAG55-97-C0056 |
REGENTS OF THE UNIV. OF NEW MEXICO
c/o Research Srvcs Scholes Hall, Rm 102 Albuquerque, NM 87131 (505) 277-7575 ID#: 37467 Agency: ARMY Topic#: 97-001 |
| Title: Reversible Fiber Optic Biosensor for Detection of Explosives | |
| Abstract: A fiber optic immunosensor system for the detection of minute amounts of explosives is proposed, based on an olfactory receptor mechanism. The system incorporates a novel concept for the realization of a fully reversible immunosensor, in which an analog, a competing agent for binding to the antibody, is fluorescently labeled and bound to the surface together with the immunochemistry. this method eliminates the need for constant replenishment of fluids, and makes the system intrinsically reversible. The substances interact optically with the light in a D-shaped, single-mode fiber, as part of a fiber optic system incorporating fiber Bragg-gratings for spectral source filtering, signal enhancement, and suppression of excitation light. Implementation of the complete system in fiber optics drastically reduces the size and weight of the system, leading to a highly sensitive, highly selective, compact explosives detection system. Besides the intended use for mine sweeping, the system will immediately have great potential for explosive detection in airports and other potential targets for terrorism. The fiber optic design also makes the system will suited for distributed sensing over large areas. Replacement of the antibody can adapt the sensor to a large number of target substances | |
| PLASMA PROCESSING ENTERPRISES
PO Box 99088 Raleigh, NC 27624-9088 (919) 870-0006 PI: Dr. Louis J. Circeo (404) 894-2070 Contract #: DACA39-97-M-1409 |
GEORGIA INSTITUTE OF TECH.
490 10th St, NW Atlanta, GA 30318 (404) 894-2070 ID#: 37441 Agency: ARMY Topic#: 97-010 |
| Title: In Situ Stabilization of Geologic Materials by Vitrification using Plasma Arc Technology | |
| Abstract: The subterranean application of plasma arc technology would result in the in situ transformation of virtually any geologic material into a vitrified rock-like mass (similar to obsidian), that is durable, strong, and highly resistant to leaching. Conceptually, a plasma arc torch would be lowered into a borehole to any depth and operated at progressively higher levels to thermally convert a mass of soil into a vertical column of vitrified and stabilized material up to 10 feet in diameter. This process of plasma stabilization of geologic materials is expected to be rapid, efficient, cost-effective, and simple. By applying this technique over a systematic grid pattern, the process would become a viable means of stabilizing weak foundation materials and unstable slopes, creating pile structures or coalescing the columns into a large contiguous monolith. The objectives of the Phase I program would be to conduct laboratory-scale experiments in selected rock and weathered rock materials at the 100kW and 200kW plasma torch power levels. the improvement in the engineering properties of the vitrified and adjacent heat-treated rock materials will be determined. In addition, the mechanical interrelationship between the vitrified mass and the surrounding undisturbed materials will be evaluated. Based on these data and the estimated unit costs to stabilize the geologic materials, the commercialization potential of the various ground improvement applications will be assessed. In situ plasma stabilization technology offers the potential to rapidly and cost-effectively improve any geologic foundation materials tha cannot be economically stabilized with current technologies. Poor foundation conditions which may be especially well suited to rapid liquefaction from earthquakes; man-made waste deposits (landfills, sludge beds, dredged materials, mine-tailings); unstable slopes and landslides; and structures undergoing excessive settlement. If this technology is brought to its full technological potential, fundamental improvements in the field of foundation engineering would be possible. foundation conditions would no longer be a limiting factor in construction operations. | |
| QUALTECH SYSTEMS, INC.
66 Davis Rd Storrs, CT 06268 (860) 423-2099 PI: Dr. Somnath Deb (860) 423-2099 Contract #: DAAG55-97-C0050 |
UNIV. OF CONNECTICUT
U-6, Research Foundation Storrs, CT 06269 (860) 486-3337 ID#: 37461 Agency: ARMY Topic#: 97-012 |
| Title: A Distributed Lattice Architecture for Real-Time Diagnosis and Recovery | |
| Abstract: The goal of the proposed research is to develop a diagnostics and recovery system that meets the real-time supervision requirements of reactive systems. in an earlier effort, we had developed and demonstrated TEAMS-RT, a software tool that can diagnose multiple faults in a system with up to 1000 sensors and aspects in just about 0.1 second. This tool uses fast and powerful algorithms based on multi-signal fault models of comples hierarchical systems. Armed with this capability, our main objectives will be two-fold. First, we will develop a distributed architecture for a real-time diagnostics system. Second, we will develop a preprocessing module for sensor measurements to minimize erroneous test results. towards the first task, we will develop a lattice architecture of decentralized but cooperative TEAMS-RT units to ensure quick response to local failures, while partitioning large systems into manageable subsystems. Local TEAMS-RT units embedded in individual subsystems will cooperate with neighboring TEAMS-RTs and report subsystem health status to a supervisor TEAMS-RT. The supervisor will perform global reasoning to isolate failures having system-wide ramifications. The developement of the preprocessing module will yield a signal processing library for generating test results. Phase II of the effort will address the development of reconfiguration modules to the reasoning engine, as well as accounting for unreliable test results. 1. Quality control and process control of manufacturing systems. 2. On-board spacecraft maintenance. 3. Commercial airlines. 4. Automotive diagnosis 5. Patient health monitoring in emergency room and intensive care units. | |
| RATON TECHNOLOGY RESEARCH, INC.
848 Clayton Highway Raton, NM 87740 (505) 445-3607 PI: Dr. Larry G. Stolarczyk (505) 445-3607 Contract #: DAAG55-97-C0057 |
LOS ALAMOS NATIONAL LAB.
PO Box 1663: MS D434 Los Alamos, NM 87545 (505) 667-2470 ID#: 37478 Agency: ARMY Topic#: 97-006 |
| Title: Multi Sensor Detection Imaging and Explosive Confirmation of Mines | |
| Abstract: This Phase I program combines three non-chemical bandmine detection technologies into an integrated sensor suite that will detect and interrogate anomalous objects for shape, size, geometrical detail, and explosive content. Lateral migration (X-Ray) radiography (LMR) is the primary imaging element, with the resonant microstrip patch antenna (RMPA) providing a "quick look" capability, and nuclear quadrupole resonance (NQR) as an explosive element indicator. LMR methods are capable of locating and imaging antipersonnel (AP) and antitank (AT) mines to 10 cm depths. Mine obscuring features such as soil surface variations can be quickly removed by wavelet image analysis. RMPA can detect and image shallow-buried nonmetallic and metallic objects. RMPA with its 1 inch resolution will limit the search area and allow LMR to be realized with lower power source. NQR methods of explosive detection typically rely on the observation of radio-frequency signals from 14N nuclei present in explosive material. This method provides a positive identification of and quantity estimate of explosive material. This sensor conbination will provide the humanitarian de-mining community with a unique means to unambiguously detect and image shallow-burried metallic and non-metallic landmines. The proposed technology is designed to be used primarily in humanitarian de-mining applications. However, there are untested possibilities for application to a variety of Unexploded Ordnance (UXO) and environmental remediation problems. Resonant microstrip patch antennas are also currently under development for measurement of uncut coal thickness left by coal excavation machine that will reduce ash, sulfur and heavy metals in run of mine coal. | |
| SARCOS RESEARCH CORP.
360 Wakara Way Salt lake City, UT 84108 (801) 581-0155 PI: Dr. David L. Wells (801) 585-7905 Contract #: DAAG55-97-C0051 |
UNIV. OF UTAH
1471 Federal Way Salt Lake City, UT 84112 (801) 581-3008 ID#: 37503 Agency: ARMY Topic#: 97-007 |
| Title: Tactile Stimulators for Haptic Interfaces | |
| Abstract: A number of situations exist in which a person's ability to effectively interact with his environment (by sensing or manipulation) is compromised by a lack of sufficient high resolution feedback from the environment ( a real environment or a virtual environment). a novel haptic interface could be used for information transfer to augment perception and understanding of the operator's environment. However, transducers and small, two-dimensional actuator arrays with the appropriate bandwidth and resolution to effectively convey surface topology (sufficient for edge detection) to aid in perception/cognition do not exist at this time. The packing density of tactile display actuators and the level of integration required to form an array with the necessary control interconnects require new approaches for fabricaiton of small electro-mechanical devices SRC proposes to use its innovative nonplanar microfabrication techniques to create actuation systems for haptic interfaces. Our approach uses microfabricated, cylindrically-shaped, active fibers arranged to form reliable, conformable subsytems which can be networked to provide data on surface characteristics via physical action, enabling the development of small, light weight tactile displays. Phase I will proceed from design specifications to concept feasibility verification, design recommendations and fabrication of a preliminary prototype tactile stimulator. A successful haptic interface system would be a significant contribution in several areas. It would improve operator perception in virtual reality systems for entertainment, training, etc. It would improve information transfer and dexterity in telerobotic systems. It would provide improved information transfer, perception, and cognition for the hearing and visually impaired. Also, such interfaces could also provide valuable feedback during microsurgery and microelectronic fabrication. | |
| SCIENTIFIC SYSTEMS COMPANY, INC.
500 West Cummings Park, Ste 3000 Woburn, MA 01801 (617) 933-5355 PI: Dr. Greve/Dr. Perloff (617) 933-5355 Contract #: DAAG55-97-C0052 |
THE BOARD OF TRUSTEES OF THE UNIV. OF IL
109 Coble Hall MC-325, 801 S. Wright St Champaign, IL 61820 (217) 333-2187 ID#: 37472 Agency: ARMY Topic#: 97-008 |
| Title: WINES: WIreless NEtwork Simulator | |
| Abstract: Networks of the future will be incredibly complex as they move to provide any time/anywhere indiviual communication of voice, video, and data traffic. Such networks will exist in both commercial and military environments. Their complexity will follow from several factors: 1)-Network Size, 2)-Wireless/Heterogeneous Networks, 3)-Mobility 4)-Multimedia 5)- Military Environment. All of these factors conspire to make theoretical evaluation of wireless, mobile, multimedia communication networks interactable. This necessitates simulation of networks in order to evaluate algorithms and protocols for managing such networks. We propose a simulation CAD tool for efficient design of mobile, wireless, multimedia communication networks. The effort will consist of speeding up the simulations using packet-level approximations of error conditions in wireless networks as well as variance reduction techniques such as importance sampling of rare events. the tool user will be able to graphically enter the network node topology as well as select attributes of the nodes, environment, and performance measures. The University of Illinois will provide experience in mobile wireless networks, and Scientific Systems will provide experience in the implementation of network algorithms. The phase I objectives will be achieved through completion of the following tasks: Task 1: Identification of Simulation Requirements for: Subtask 1.1: Packet-Level Error Approximations. Subtask 1.2: Wireless physical layer features (eg, FH-CDMA). Subtask 1.3: Traffic source Models (eg, MMPP and ARMA). Subtask 1.4: routing. Subtask 1.5: Transmission Scheduling Subtask 1.6: Performance Measures. Task 2: Simulation Platform Development. Task 3: Proof-of-Concept Demonstration. Task 4: Final Report and Phase II recommendations. Wireless technology is rapidly becoming a part of the mainstream technology for personal communication systems, nomadic computing and industrial applications where the use of wirelines is either too expensive or infeasible. Wireless ATM standards are being developed rapidly by the ATM forum for multimedia wireless communication. Scientific Systems is a member of the ATM Forum and has developed strategic relat | |
| TECHNOLOGY ASSESSMENT & TRANSFER, INC.
133 Defense Highway, Ste 212 Annapolis, MD 21401 (301) 261-8373 PI: Dr. Frank Kustas (301) 261-8373 Contract #: DAAG55-97-C0054 |
AMES LABORATORY
311 TASF, Iowa State University Ames, IA 50011-3020 (515) 294-6486 ID#: 37508 Agency: ARMY Topic#: 97-003 |
| Title: New Sputtered Quasicrystalline Coatings for Advanced Propulsion Systems | |
| Abstract: Future combat-ready forces will require revolutionary advances in propulsion system capabilities to satisfy the Army's aggressive goals of significantly increased power-to-thrust and horsepower-to-volume ratios. To achieve these performance enhancements, the temperature capabilities of both structural components and lubrication systems need to be expanded. To date, no single approach has met combined performance and life goals. Technology Assessment and Transfer, along with Ames Laboratory, propose to advance the state-of-the-art in wide-temperature-range solid lubrication by sputtering new quasicrystalline system (QS) coatings, which offer unique tribological properties. Al-Cu-Fe (& Cr) quasicrystalline materials exhibit a desirable combination of high hardness, high modulus, low friction, and thermal insulating properties that is unique among metallic systems. The desirable tribological properties are due to the low surface energy characteristics of the quasicrystalline atomic arrangement. TA&T proposes to deposit thin-film QS materials by closed field unbalanced magnetron sputtering (CFUMS), which will produce coatings with superior properties compared to plasma-sprayed or normally-sputtered coatings. This represents the first known application of CFUMS for the deposition of QS materials. Thin-film coatings will be characterized for composition, structure, hardness, toughness, and elevated-temperature wear behavior. The combination of QS materials and CFUMS offers an innovation with a high probability of success for tribocontact mechanisms in advanced diesel and turbine engines. Demonstration of new thin-film QS materials for propulsion system components will probide an entirely new class of wide-temperature-range solid lubricants. QS coatings will be produced which have smooth surfaces, low porosity, and exhibit low-friction and low wear rates over a wide temperature range. Potential applications include military propulsion systems for ground and airborne vehicles, engine components for commercial transportation systems, bearings for x-ray systems, and coatings for tools used in the dry machining of materials | |
| ACCUWAVE CORP.
1651 19th Street Santa Monica, CA 90404 (310) 449-5540 PI: Mr. Koichi Sayano (310) 449-5540 Contract #: F30602-97-C-0330 |
UNIV. OF CENTRAL FLORIDA
4000 Central Florida Blvd, Adm. 243 Orlando, FL 32816-0150 (407) 823-5278 ID#: 97BMDO37T Agency: BMDO Topic#: 97-002 |
| Title: Holographic Grating Filters in Optical Glasses for CI WDM Networks | |
| Abstract: Accuwave Corporation and CREOL will develop high efficiency, narrow bandwidth filters for WDM multiplexer and demulti-plexer applications using volume holographic gratings in new volume recording materials. Gratings fabricated in these materials will be used in multiplexing/demultiplexing filters in a similar approach that has been used with LiNbO3 holographic filters. Filter parameters will be tested based on industry standards. A preliminary design of multiplexing filters as well as other telecommunications applications of these gratings will be developed. Potential commercial applications include filters for WDM networks, instrumentation and remote sensing, and wavelength calibration sources. WDM network applications include multiplexers and demultiplexers for long distance, local area, and metropolitan networks. Holographic grating filters in these materials can also be incorporated into Accuwave's current wavelength locker and network monitor products. | |
| AMERICAN XTAL TECHNOLOGY
4311 Solar Way Fremont, CA 94538 (510) 683-5900 PI: Heikki Helava (510) 683-5900 Contract #: N00014-97-C-0355 |
KANSAS STATE UNIV.
2 Fairchild Hall Manhattan, KS 66506-1103 (913) 532-6804 ID#: 97BMDO16T Agency: BMDO Topic#: 97-002 |
| Title: A Comprehensive AIN Source Material, Single Crystal and Substrate Development Program | |
| Abstract: Aluminum Nitride (AlN) substrates are attractive for III-nitride epitaxial growth due to their high thermal conductivity, close lattice and thermal expansion match to III-nitride compositions used for opto-electronic and electronic devices and their relative ease of growth when compared to Gallium Nitride (GaN). A comprehensive program which integrates the manufacturing of starting material feedstock, single crystal growth and wafering process development. The overall program objective is to develop a process for synthesizing high purity, consistent AlN powder for use a feedstock for the sublimation growth of single crystals. Seeded AlN single crystal growth using a unique vertical furnace provided through DURIP will be used to study the impact of crucible material and design on crystal growth and quality. Crystal slicing and polishing processes will be developed to prepare the substrates for epitaxial growth. Initial studies will be carried out in Phase I which will establish the basis for the Phase II crystal growth technology transfer from Kansas State University to American Xtal Technology. In Phase III AXT will fully commercialize AlN substrate technology. We have proposed a unique program which integrates all aspects of technology which are required to achieve a commercially viable AlN substrate manufacturing process. Successful development of a large-area, high-quality AlN substrate will have significant impact on the development and availability of blue and green III nitride lasers and nitride-based high temperature, high power electronics. Conservative estimates of the potential market for these devices is in the billions of dollars within the next 5-10 years. The devices are important for many military and commercial applications such as high density data storage, solar-blind detectors, high resolution printing, underwater communications, etc. | |
| APPLIED SCIENCES, INC.
141 West Xenia Ave, PO Box 579 Cedarville, OH 45314 (513) 766-2020 PI: Robert L. Alig (937) 766-2020 Contract #: N00014-97-C-0374 |
WEST VIRGINIA UNIV.
617 Spruce Street, P.O. Box 6845 Morgantown, WV 26506 (304) 293-3998 ID#: 97BMDO51T Agency: BMDO Topic#: 97-003 |
| Title: High Strength Carbon Foam | |
| Abstract: New technologies for production of structural carbons offers promise to create a new generation of structural materials with useful mechanical properties, yet with production costs which will eliminate the barrier to wider use in transportation and communications. These new technologies include the derivation of low-cost carbon precursors from coal, and the use of such precursors in the production of lightweight structural carbon foams. The objective for this proposal is to show that high strength structural carbon foams can be produced by combining the West Virginia University method for producing carbon foam with the Applied Sciences carbon fiber technology, to act as a high strength reinforcement. Benefits which could accrue are increased performance and payload, and lower operating costs of aerospace and terrestrial vehicles, durable bridges, the reduced use of fuel in transportation (currently 67% of U.S. oil consumption), and consequent improvement in air quality. Potential applications include aerospace structures, terrestrial structural applications as well, impact resistance materials, armor shock absorption, and filters for removal of metal ions from liquid waste. | |
| ASTARTE FIBER NETWORKS, INC.
2555 55th St., Suite 100 Boulder, CO 80301 (303) 443-8778 PI: John Wittenberger (303) 443-8778 Contract #: DASG60-97-M-0209 |
UNIV. OF COLORADO - BOULDER
Boulder, CO 80303 (303) 492-2698 ID#: 97BMDO60T Agency: BMDO Topic#: 97-002 |
| Title: Integrated Optoelectronic Switching Technology for Fiber-optic Communications Networks | |
| Abstract: Astarte Fiber Networks, Inc., the world's leading manufacturer of fiber optics network switching devices, is teaming with the Opto-electronic Computing System Center, an NSF Engineering Research Center at the University of Colorado, to develop the technology for the next generation of optical network switches. Based on passive polymeric waveguides, high-speed semiconductor optical amplifiers, and a modular, scaleable architecture, the technology will provide six orders of magnitude improvement in network reconfiguration time. A performance improvement of this magnitude will move reconfigurable network switches into new application areas that will drive product volumes higher and prices lower. The product cost of the switch is kept low by using self-aligning optoelectronic packaging technology, while switch scalability is achieved by using highly integrated, polymer waveguide structures in conjunction with semiconductor amplifiers. These technologies have been developed largely by Federal funding, and are now poised to enter the commercial marketplace. The main goal of the proposed Phase I effort is to demonstrate the functionality of the optical switching module technology, focusing on a 2X2 test vehicle. A secondary goal is to determine the switching architecture compatible with these new modules. Fiber-optic switching systems based on this technology are expected to provide important benefits over the state-of-the-art. Benefits include: improved switching times, lower insertion loss, the ability to adjust optical throughout to accommodate transmission losses, increased switch size flexibly, and manufacturing efficiencies leading to lower cost products. These benefits are important to a multi-tude of markets and applications that need relatively inexpensive, fully-optical, high-speed switching capabilities for their high band-width, fiber-optic communications networks. Beneficiaries include military/defense installations, government agencies, telecommunica-tions companies, and companies with large data communications networks. | |
| BEND RESEARCH, INC.
64550 Research Road Bend, OR 97701-8599 (541) 382-4100 PI: Daniel T. Smithey (541) 382-4100 Contract #: N00014-97-C-0368 |
UNIV. OF OREGON
c/o Office of Research Services 5219 Eugene, OR 97403-5219 (541) 346-5131 ID#: 97BMDO10T Agency: BMDO Topic#: 97-002 |
| Title: Organometallic Polymers for Nonlinear Optical Applications | |
| Abstract: This Phase I. STTR proposal is directed at the development of a new class of polymeric nonlinear-optical (NLO) materials. As envisioned, these new NLO materials will 1) be thermally stable at temperatures above 350 C, 2) have large second-order optical nonlinearities, 3) have facile synthesis procedures, and 4) allow simple processing for a variety of thin-film devices with excellent optical and mechanical characteristics. In addition, these new materials will be easily modifiable so that they may be optimized for a wide range of operating wavelengths. Bend Research, Inc., and personnel at the University of Oregon will combine their expertise in this area to meet the program goals for BMDO. The Phase I approach is to design and prepare organometallic polymeric materials with specific structural characteristics that simultaneously impart extraordinarily high optical nonlinearity and thermal stability. If successful, these new NLO materials will be enabling for a broad range of applications, such as electro-optic components, second-harmonic generation materials, and photorefractive polymers. The successful completion of the proposed work would result in a new class of highly nonlinear-optical materials with excellent optical and thermal properties. These materials would be easily processable and inexpensive. Such materials could be used for an important range of BMDO and civilian applications, including the following: electro-optic sampling, Gbit/sec switching networks, optical-computing applications such as optical interconnects and optical storage, and laser radar and frequency doubling. | |
| CRYSTAL IS, INC.
25 Cord Street Latham, NY 12110 (518) 783-7521 PI: Dr. Glen Slack (518) 276-4015 Contract #: N00014-97-C-0362 |
RENSSELAER POLYTECHNIC INST.
110 8th Street Troy, NY 12180 (518) 276-6283 ID#: 97BMDO56T Agency: BMDO Topic#: 97-002 |
| Title: Innovative Crucible Design for Commercial Growth of Aluminum Nitride | |
| Abstract: The rapid development of III-nitride epitaxial techniques has caused a concurrent development of significant new device concepts which utilize these wide-bandgap, high temperature semiconductors. Unfortunately, current substrates for nitride epitaxy significantly degrade the performance of many types of desired devices including blue/ W laser and high power semiconductor applications. Here we & pose to develop AlN substrates for III-nitride epitaxy which will be superior to all substrates currently available. In particular, the AlN substrates have significantly superior chemical compatibility, lattice/crystal structure match, thermal expansion match, and thermal conductivity when compared to the sapphire substrates that are currently being extensively used for epitaxial growth. Our technique for growing AlN boules is based on the sublimation-recondensation techniques developed for this material by Slack and McNelly. Commercial application of this technique, however, will depend crucially on the development of new crucible designs with significantly longer lifetimes while maintaining chemical purity of the growing AlN crystal. In addition, the new crucible designs will have to maintain the good nucleation characteristics of the W crucibles used in the original work. The development of these new crucibles is the point of this Phase I STTR and will play a crucial role in bringing AlN substrates to the market. Substrates of AlN will allow growth of higher quality epitaxial nitrides and will also exhibit better characteristics in high temperature and high power applications. Commercial applications of the improved epitaxial nitrides includes the development of long lifetime, efficient blue/UV solid state lasers for display and data storage applications. Other applications include the development of very high power solid state switching devices for power utilities. | |
| DISPLAYTECH, INC.
2602 Clover Basin Drive Longmont, CO 80503 (303) 772-2191 PI: Dr. Michael J. O'Callagha (303) 772-2191 Contract #: DASG60-97-M-0207 |
MASSACHUSETTS INSTITUTE OF TECH.
77 Massachusetts Ave. Cambridge, MA 02139 (617) 253-3864 ID#: 97BMDO61T Agency: BMDO Topic#: 97-002 |
| Title: Read/Write Head for Room Temperature Holographic Memory | |
| Abstract: Growing demand for high capacity, compact, low cost, data storage for consumer products (e.g. video), for desk top computers, and for large data base systems is surpassing the capabilities of-present day magnetic disk drive and optical CD-ROM technologies. Due to advances in volume holographic storage media a number of university and industrial research laboratories are pursuing the development and commercialization of high capacity holographic data storage systems. In order to effectively exploit this potential, new types of optical input/output devices are needed. In this STTR Displaytech, working in collaboration with MIT, proposes to develop a-compact optical read/write head for use in MIT's room temperature holographic memory program. The optical read/write head will be an important component for the eventual production of commercial holographic memory systems. This new electro optic device should enable the largest demonstration of single page data transfer ever reported (l,000 x 1,000 pixels), enabling storage of more than 100 Gbytes of information in the holographic memory. The electro-optic read/write head, in conjunction with the room temperature holographic material, will enable the first system integration of a very high capacity holographic memory and has high commercial payoff. Successful completion of the proposed work will result in a prototype optical |read/write head which will raise the performance and commercial feasibility of optical holographic memory systems. It will be of immediate use in MIT's room temperature holographic memory program, and will be a key building block for the commercialization of holographic memory technology. | |
| ELECTRON POWER SYSTEMS, INC.
42 Washington Drive Acton, MA 01720 (508) 263-3871 PI: Clint Seward (508) 263-3871 Contract #: DSWA01-97-M-0537 |
MASSACHUSETTS INSTITUTE OF TECH.
167 Albany Street, NW 16-186 Cambridge, MA 02139 (617) 253-5528 ID#: 97BMDO68T Agency: BMDO Topic#: 97-003 |
| Title: The Electron Spiral Toroid (EST) for Energy Storage | |
| Abstract: A newly discovered stable configuration of an electron beam is | |