Abstract:SiC power semiconductors have the capability of greatly outperforming Si-based power devices. Smaller switching and on-state losses coupled with higher voltage blocking capability, and especially its high operating temperature make SiC the ideal semiconductor for high performance, high power density… more
Abstract:This SBIR Phase I project seeks to develop an advanced, flexible, robust, high-power density, high-voltage (600 V), solid-state circuit protection device (SSCPD) through the incorporation of silicon carbide (SiC) device technology, the implementation of… more
Abstract:Arkansas Power Electronics International, Inc. (APEI, Inc.), and Moog, Inc. have allied to form a team devoted to the development of an intelligent, multi-channel, highly-miniaturized, high-temperature, Silicon Carbide (SiC) based Solid-State Energy… more
Abstract:…gy (the R & D division of Frequency Management International, FMI) proposes to deliver a comprehensive, and fully investigated & validated feasibility study (in Phase 1) for a novel approach leading to design & fabrication of extreme Environment Silicon … more
Abstract:… bearing material comprised of either glass or carbon reinforcing fibers and a benzoxazine resin chemistry in place of the current phenolic resin to replace the current cotton/phenolic composite bearing material. Nano-scale additives such as clays, silica, silicon … 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:ABSTRACT: Improving heat transfer and enhancing mechanical compliance at interfaces has significant impact on military and commercial applications. For example, silicon carbide power electronics operate at much higher temperatures (~250 oC) than their… more
Abstract:SiC power electronics are ideally suited for reducing the size and weight of power electronics systems that are used in wind power converters. Present power electronics systems require large transformers which operate a modest frequencies that prevents their use on top of the turbine tower. The… more
Abstract:…, relatively high modulus ceramic fiber reinforcement within a ceramic matrix produces a material with significantly greater toughness, flaw insensitivity, and strain capability than a monolith, while maintaining high-temperature refractory capabilities. Silicon carbide… more
Abstract:ABSTRACT: The current designs of telescopes for space borne applications use monolithic glass, beryllium, or silicon-carbide optics. With the existing optical technology, it is increasingly difficult or impossible to meet the new goals and requirements of AF, ORS, and other… more
Abstract:… non-metallic material candidate to allow these new reactor designs to come to fruition. This DOE Phase II 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:… process, Onyx Optics proposes to develop a technique that is based on electrolytic in-process dressing (ELID) of grinding wheels of decreasing diamond grain sizes. The process is generally applicable to ductile grinding of hard materials such as glass, sapphire, 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:Power system upgrades for next-generation ground combat vehicles require technology advances such as higher operating temperature, greater power density, and increased functionality. Silicon Carbide (SiC) based power electronic devices offer advantages over… more
Abstract:… have increased electrical power demands and the potential for extremely large fault currents. Fast and reliable means to limit fault currents and isolate faulted sections are required to meet these emerging power needs. We propose to develop an extremely fast, Silicon … 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:Carbon-fiber reinforced silicon carbide matrix (SiC/Cf) composite was identified as the leading thruster construction material for SDACS for SM3-Block IIB. For SDACS propulsion applications, SiC/Cf composite surfaces must be hermetically sealed and SiC/Cf… more
Abstract:The proposed research effort explores the use of a nanosecond pulse driven offset semiconducting surface dielectric barrier discharge (SSDBD) device for the control of high speed, near surface air flows and the reduction of skin friction drag. With the nanosecond discharge, very high field… more
Abstract:The proposed work will result in a method for production of dense, hard, tough, strong tungten carbide (WC) ceramic material for ultimate use as the penetrating core in armor piercing projectiles. Focus is on the development and feasibility of a titanium silicon … more
Abstract:…SFC Principal Investigator Compact Achromatic Visible Nulling Coronagraph Technology Maturation) and his telescope expert Lee Feinberg, Trex will perform a preliminary design of a 1-meter aperture, ultrastable, UVOIR telescope made using Trex Chemical Vapor Composite Silicon … more
Abstract:Renewable energy resources are being adopted by government entities, utility power providers and more recently by industrial behind-the-meter end-users as well. Solar power is attractive especially in areas where electricity costs are high, such as California and New Jersey. New Jersey is… more
Abstract:… to meet municipality budgets and space limitations. The impact of a medium voltage switch could greatly shrink the weight and cost of power converters by reducing cable size, transformer size, and eliminating elaborate cooling systems all together. United Silicon … more
Abstract:United Silicon Carbide, Inc. proposes to develop a novel compact, efficient and high-temperature power module, based on unique co-packaging approach of normally-off silicon (Si) MOSFET with silicon carbide (SiC) normally-on power JFET in a cascode… more
Abstract:Solar-blind ultraviolet (UV) imaging is critically important in the fields of space astronomy, national defense, and bio-chemistry. United Silicon Carbide, Inc. proposes to develop and commercialize a unique JFET-based monolithically-integrated… more
Abstract:ABSTRACT: During this program, United Silicon Carbide, Inc. (USCi) will develop basic analog and digital circuit blocks capable of operation up to 500oC, based on 4H-SiC complementary lateral JFET technology. The following integrated circuits will be… more
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