Abstract:… and are not readily scaleable to large mirrors. CVD Si cladding is currently limited to mirror substrates less than 1-meter in diameter. The proposed IAD process produces little heat, and the mirror size is limited only by the size of the vacuum chamber.Large silicon … more
Abstract:Avogy has a unique approach to producing vertical GaN-on-GaN power devices that have fundamental advantages over silicon, silicon carbide, and lateral GaN devices. With this SBIR funding, we will demonstrate the feasibility of a normally-off vertical GaN… more
Abstract:This Small Business Innovation Research (SBIR) Phase II project will build upon recent advances in nanotechnology and laser processing of materials to pursue the large-scale production of stoichiometrically pure silicon carbide (SiC) fibers which are very… more
Abstract:…. One area of interest are fuels and components fabricated from ceramic composites that do not balloon during LOCA accidents, do not react exothermically with water during post LOCA quench, and do not release explosive gases such as hydrogen. One such material is the Silicon… more
Abstract:Accurate Automation Corporation proposes to develop a system for a self-contained missile launchable RF Generator based on a frozen wave transmission line technique. The RF transmission line will be charged through an optically activated switch fabricated from silicon … more
Abstract:…ion of high strength boron carbide fiber and to produce a large volume boron carbide fiber using ACI"s patented viscose suspension spinning process (VSSP) at reasonable cost. VSSP has been used to manufacture numerous ceramic fiber chemistries including alumina and silicon… more
Abstract:Silicon carbide (SiC) based devices are currently under investigation for their improved efficiency and high thermal stability. Compared to silicon, SiC has an exceptionally high thermal conductivity and also exhibits better mechanical properties. However,… more
Abstract:…al resistance and thus enable thermal management solutions that improve the operating range and efficiency for a wide variety of power electronic systems. The commercial applications of the proposed package and heat sink technology include silicon-based and silicon … more
Abstract:… development of a novel, low-cost cold plate for power module thermal management. This cold plate is enabled by a unique integrated package and heat sink assembly technology. The target application for the integrated package and heat sink assembly is high-temperature silicon … more
Abstract:APEI, Inc."s Phase II goal is to develop, fabricate and test a compact, high temperature, high performance isolated gate drivers utilizing HTSOI integrated circuits, discrete SiC devices, and high frequency coreless magnetics. Additionally, leveraging its existing high performance high… more
Abstract:Silicon Carbide deep UV detectors can achieve large gains, high signal-to-noise ratios and solar-blind operation, with added benefits of smaller sizes, lower operating voltages, radiation hardness, ruggedness and scalability. SiC UV APDs implementation is… more
Abstract:Silicon Carbide (SiC) electronics has the potential for revolutionizing the high temperature high power electronics industry. There is a strong need for tools and models for circuit design using the new SiC power devices that are coming to market. Our work in… more
Abstract:… as the only material candidate to allow these new reactor designs to come to fruition. This DOE Phase I SBIR seeks to demonstrate high purity, stoichiometric SiC/SiC CMC components made with commercially available SiC fiber and USAs first low cost, stoichiometric silicon… more
Abstract:…nd GenX used in special NASA missions. Low-density materials are ideal for use as mirrors in such applications. Beryllium has been traditionally considered ideal for lightweight mirrors requiring high rigidity. The toxicity of beryllium poses a major problem. Polished Silicon… more
Abstract:… software that uses waterjets to mill to a controlled depth. The process is being used to groove long channels in high temperature metals for scramjets, cooling channels in rocket nozzles, fluid channels in fuel cells and is even capable of milling grooves in silicon … more
Abstract:… or foreign compounds at the critical interface between the reinforcement material and the ceramic matrix, which can compromise the composite"s strength and/or chemical resistance. Such effects have been attributed to cumulative water vapor contamination of silicon … more
Abstract:Upgrades to the Bradley and Stryker vehicles and concepts for a next-generation ground combat vehicle require substantial expansion of the electrical power generation and distribution system. The upgrades must be implemented within very tight spaces, and this requires technology advances such as… more
Abstract:Silicon carbide based ceramic matrix composites may become the predominant material system from which reactor core components are manufactured. Manufacturing large, high aspect ratio, components using silicon carbide composite materials presents unique… more
Abstract:…. Also, the long term oxidation of carbon control rods by the residual oxidizing gases in the helium coolant of the next generation nuclear plant (NGNP) has never been studied. The oxidation of both graphite and C/C composites can be mitigated by applying a silicon … more
Abstract:… lattice-matching ability of the AlInN alloy, it is expected that the defect density in the eventual HFETs can be reduced significantally, ultimately improving device performance and reliability. By eliminating the need to use coventional, non-native substrates such as … more
Abstract:ABSTRACT: Silicon carbide electronics technology has several advantages over conventional silicon electronics and it finds its application in several power electronics applications. However, the manufacturing of reliable SiC power devices is a critical… more
Abstract:…e these harsh environments. Sporian Microsystems has previously developed a MEM sensor technology for high temperature power system applications. Sporians sensor technology is based on the combination of advance high temperature packaging and recently developed silicon … more
Abstract:… extend fuel rod lifetime and increase fuel utilization (i.e., burn-up), but also to stave off run- away, active oxidation and melting of the rods under loss of coolant conditions. Proposed program will develop the use of a ceramic adhesive to bond monolithic silicon … more
Abstract:… capable of surviving ultrahigh temperature thermal, chemical, and mechanical environments. The use of robust materials with broad operational capability leads to simpler and lower cost designs. Current Aerojet TDACS divert valve pintle designs employ a Novoltex silicon… more
Abstract:Monolithic microwave integrated circuits (MMIC) generate ever-increasing heat loads. Foam-based cooling systems have proven beneficial for high heat dissipation with low pumping and small volume requirements. In previous work, Ultramet fabricated silicon … more
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