This program will develop a ballistic tape and a flexible fiber reinforced composite panel for use in lightweight, flexible modular armors against fragmentation protection. Required number of layers of ballistic materials based on woven and non-woven aramid and polyethylene fabrics will be… More

37 A Novel Reactive Joining Compound for High Temperature Applications--Sienna Technologies, Inc., 19501 144th Avenue NE, Suite F-500, Woodinville, WA 98072-8424; (425) 485-7272 Dr. Cetin Toy, Principal Investigator Dr. Ender Savrun, Business Official DOE Grant No.… More

37 A Novel Reactive Joining Compound for High Temperature Applications--Sienna Technologies, Inc., 19501 144th Avenue NE, Suite F-500, Woodinville, WA 98072-8424; (425) 485-7272 Dr. Cetin Toy, Principal Investigator Dr. Ender Savrun, Business Official DOE Grant No. DE-FG03-97ER82474 Amount: … More

Current IR systems are extremely susceptible to electromagnetic and radio frequency interference (EM/RFI) because they possess large apertures that present ideal front-door entry paths for EM radiation. Significant amounts of EM radiation (400 MHz - 18 GHz) can penetrate and couple to the IR sensor… More

Not Available Interest in micro unmanned aerial vehicles (abbreviated as MAVs and defined as less than 6 inches in their longest dimension) is increasing due to their ability to avoid detection and give combat forces a flexible and immediate intelligence source. While vehicle concepts abound, they… More

Not Available Weapon system planners are required to prioritize many developments for new and existing combat systems. Often it is difficult to determine the actual operating costs of a system to make meaningful comparisons of the operating cost of one system compared to another. Developers and… More

65072 The Environmental Protection Agency (EPA) recently classified beryllia (BeO) as a hazardous material because of its toxicity, and manufacturers are discontinuing the production of products that contain BeO due to potential liability problems. As an alternative, aluminum nitride (AIN) based… More

The Phase I work demonstrated that a family of ceramic oxides and oxynitrides can be used either as high temperature catalyst carriers or catalysts for decomposition of HAN fuels. A ceramic processing technique to produce high surface area catalystgranules was also demonstrated. However, no… More

The Phase I work demonstrated that a family of ceramic oxides and oxynitrides can be used either as high temperature catalyst carriers or catalysts for decomposition of HAN fuels. A ceramic processing technique to produce high surface area catalystgranules was also demonstrated. However, no… More

The Phase I effort demonstrated viability of developing a new chemical propulsion system on a scale that is suitable for microsatellites. A preliminary micropropulsion system complete with a high Isp propellant, catalyst, combustion chamber, and exhaustnozzle was outlined, and component materials… More

65072 The use of high thermal conductivity aluminum nitride (AlN) components can boost the performance of power electronic and microwave devices significantly. However, the lack of suitable metallization and brazing technologies, required to join the AlN components to each other and to metallic… More

65072 The use of high thermal conductivity aluminum nitride (AlN) components can boost the performance of power electronic and microwave devices significantly. However, the lack of suitable metallization and brazing technologies, required to join the AlN components to each other and to metallic… More

The Phase I work completed under Contract NAS3-02025 demonstrated that a family of ceramic oxides can successfully be used either as high temperature catalyst carriers or catalysts for decomposition of HAN/MeOH fuels. A ceramic processing technique to produce high surface area spherical catalyst… More

The Phase I work completed under Contract NAS3-02025 demonstrated that a family of ceramic oxides can successfully be used either as high temperature catalyst carriers or catalysts for decomposition of HAN/MeOH fuels. A ceramic processing technique to produce high surface area spherical catalyst… More

"The Phase I work demonstrated the feasibility of hard,electrically conductive novel ceramic thin films suitable forreducing electromagnetic interference while still permitting hightransmittance in the infrared region. However, no performanceoptimization was performed. The Phase II program will… More

This project will investigate a novel family of infrared transparent thin film materials having high electrical conductivity for electromagnetic interference shielding of IR sensor windows. High purity powders of bulk materials will be synthesized.Sputtering targets from the powders will be… More

"The Phase I work demonstrated the feasibility of hard,electrically conductive novel ceramic thin films suitable forreducing electromagnetic interference while still permitting hightransmittance in the infrared region. However, no performanceoptimization was performed. The Phase II program will… More

72560S03-I New window materials that can handle multi-megawatt radio frequency (RF) powers are needed to increase the reliability of RF windows for linear particle accelerators. Aluminum nitride would be an excellent window material due to its high thermal conductivity, high dielectric strength,… More

This SBIR program will demonstrate the potential of microwave dielectric heating to ignite the USAF developed HAN-based monopropellants.Complex permittivity measurements on a series of HAN-based monopropellants will be carried out to identify the frequency region for maximum microwave absorption. … More

This SBIR program will demonstrate the potential of laser ignition to initiate decomposition of the USAF developed HAN-based monopropellants.The interaction of a series of HAN-based monopropellants with electromagnetic radiation over 0.2 microns to 11.0 microns will be characterized to identify the… More

72560-New window materials that can handle multi-megawatt radio frequency (RF) powers are needed to increase the reliability of RF windows for linear particle accelerators. Aluminum nitride would be an excellent window material due to its high thermal conductivity, high dielectric strength, low… More

Methods are sought that will heat a small hydrogen peroxide decomposition chamber in a pilot reactor rapidly to a point where thermal or catalytic decomposition of hydrogen peroxide can be safely and spontaneously initiated. The heat output from the pilot reactor will then bring the main reactor up… More

This Small Business Innovation Research (SBIR) Phase I project will investigate new materials for use in industrial hydrodesulfurization (HDS) processing. This project will focus on transition metal phosphide catalysts, a novel class of compounds recently discovered to be highly active towards HDS,… More

75602-Nitric acid production is currently the largest source of nitrous oxide emissions in the chemical industry. Reductions in these emissions are urgently required because nitrous oxide is both a strong greenhouse gas and an ozone layer depleter. Although measures exist to eliminate nitrous… More

This SBIR program will demonstrate the potential of microwaves to repeatedly and controllably ignite the USAF developed HAN-based monopropellants We will continue microwave ignition experiments in the S-band to determine precise time-to-ignition for the selected monopropellant at a given microwave… More

This SBIR program will demonstrate the potential of magnetron sputtering to deposit pyrophoric thin film compositions with novel microstructures. Their extremely high surface area-to-volume ratios and their controllable chemical compositions make these thin film materials excellent candidates for… More

This SBIR program will produce nanocrystalline, dense a-Al2O3 samples with high IR transparency by utilizing novel processing techniques starting with properly seeded transition alumina powders. Alpha alumina does not exist naturally in the environment and is synthesized by a number of various… More

In Phase I, Sienna Technologies, Inc. has successfully demonstrated the feasibility of a novel family of materials to develop infrared decoys with tunable IR emission signatures. In Phase II we will expand on successful Phase I results by (i) investigating compositional and morphological variables… More

This Small Business Innovation Research Phase I research project will investigate a new synthesis method to produce highly active transition metal phosphide hydrodesulfurization (HDS) catalysts to reduce sulfur content in transportation fuels to the levels set by environmental legislation.… More

This Small Business Innovation Research Phase I project will develop an AlN ceramic package that will facilitate the operation of high power SiC devices at temperatures greater than 300ºC. Processes to assemble the components into a hermetically sealed package will be identified and developed. … More

In the Phase I program Sienna Technologies, Inc. has successfully developed (i) a low temperature die attach process that is capable of operating over 400ºC, (ii) wire bondable gold and silver thick film metallizations on AlN substrates, (iii) high temperature stable wire bonds, and (iv) an all… More

Conventional dielectric materials for hypersonic radome and window applications exhibit a number of performance limitations including inadequate thermal shock resistance, variations in electrical (dielectric constant and loss) and structural performance (mechanical strength) with temperature, and… More

Future solid-state pulse power systems for high energy physics research will require high-energy-density energy storage capacitors. Polymer-ceramic composites with a high-dielectric-breakdown-strength polymer matrix and high-dielectric-constant nanocrystalline ceramic dielectric powders… More

Lossy dielectrics are used as high order mode (HOM) absorbers in superconducting radio frequency (SRF) cavities in linear accelerators and microwave tubes. Recently, lossy dielectrics based on high thermal conductivity aluminum nitride (AlN) have been developed, which can replace the lossy… More

In this Small Business Innovation Research (SBIR) program, a high throughput chemical micropropulsion system for nano- and microsatellites will be developed. The microthruster will use an all-ceramic construction to withstand the high temperatures associated with the high Isp, clean burning,… More

High current hollow cathodes are the baseline electron source for next generation high power Hall thrusters. Currently for electron sources providing current levels >50 A and cathodes utilizing LaB6 emitters, the only viable, long life heater technology is a low reliability, low producibility,… More

The proposed program will develop an hermetic, CTE matched, thermal shock resistant ceramic packaging technology that will facilitate the operation of Si and SiGe devices at extreme temperatures (-230ýýC to 130ýýC) encountered on the Moon and Mars. Processes to assemble the components… More

This program will develop a single-phase cubic material with near zero thermal expansion and high (>80%-85% in-line) infrared transmission from 3 m to 5 m for infrared domes and windows. The low thermal expansion material will have high thermal shock resistance as well as good mechanical strength… More

Recently developed high thermal conductivity aluminum nitride (AlN) based lossy dielectrics can replace the toxic beryllia (BeO) based lossy dielectrics as high order mode (HOM) absorbers in superconductor radio frequency (SRF) cavities in linear accelerators and in microwave tubes. AlN-based lossy… More

A family of aluminum-nitride/silicon-carbide (AlN/SiC) composite lossy dielectrics are being developed to replace the toxic beryllia/silicon-carbide (BeO/SiC) composite lossy dielectrics as high order mode (HOM) absorbers in superconductor radio frequency (SRF) cavities in linear accelerators and in… More

The current state-of-the-art co-axial swaged tantalum (Ta) heaters use magnesium oxide (MgO) insulators, which limits their operation to temperatures well below 1300ýýC to prevent undesirable chemical reactions between Mg and Ta and heater failure. This program will develop a new ceramic… More

This SBIR program will develop a highly non-linear polymer-ceramic nanocomposite capable of operation at >1 GHz. Highly non-linear, nanocrystalline ceramic dielectric particles will by synthesized via sol-gel processing. We will control the chemical composition and particle size to obtain nanosize… More

The proposed program will develop highly reliable, hermetic, Si3N4 ceramic multichip modules to integrate commercially available SiC power devices to build power electronic modules for reliable operation above 500

The proposed program will develop an hermetic, CTE matched, thermal shock resistant ceramic packaging technology that will facilitate the operation of Si and SiGe devices at extreme temperatures (-230

This SBIR Phase I program will identify the joining materials and demonstrate the processes that are suited for construction of advanced ceramic matrix composite (CMC) thrusters for advanced monopropellants and bipropellants for space propulsion. We will join CMCs to each other and to superalloys… More

Currently available Aluminum nitridesilicon carbide (AlNSiC) composite lossy dielectrics are not suitable as high order mode (HOM) absorbers in superconductor radio frequency (SRF) cavities in linear accelerators operating at cryogenic temperatures. Even though they have favorable dielectric… More

This SBIR program will develop a lightweight, high performance ceramic matrix composite thruster for DACS propulsion. The Phase I program will identify the sealing and joining materials, and demonstrate the processes that are suited for construction of advanced ceramic matrix composite (CMC)… More