Abstract:… improving two of the most important parts of a high energy mirror design, the reflective mirror surface, and the multifunctional substrate. Brimrose, in collaboration with Applied Research Laboratory of Penn State University, proposes to develop boron carbide (B4C) and … more
Abstract:… fuels. The proposed project is made possible by the confluence of advances in additive micro-fabrication that would not only transform TRISO fuel fabrication from batch to continuous manufacturing, but would also embed them in high temperature and radiation resistant … more
Abstract:The use of advanced ceramic materials, such as silicon carbide, for light water reactor fuel cladding is being investigated, in part due to the increased safety margin afforded by this technology over conventional zircaloy metallic claddings. In light of… more
Abstract:An ideal transistor from a circuit designers standpoint consists of an ultra-low on-resistance, majority carrier switching, low gate current drive, and normally-off design. These features are inherent in the silicon carbide (SiC) power MOSFET, with the small… more
Abstract:In this Phase II proposal, APEI, Inc. will continue development of its patented high temperature gate driver technology, enabling the next generation of high-efficiency, high power density converters. At the conclusion of Phase II, APEI, Inc. will have designed, fabricated, and tested a high… more
Abstract:…ootprints. The described performance would be superior to any present-day alternatives that may only be available at much lower operating temperatures with no provisions for radiation hardness. The proposed range of circuit blocks that will be fabricated in Silicon … more
Abstract:Switching power amplifiers (SPAs) have a wide variety of applications within the fusion science community, including feedback and control systems for dynamic plasma stabilization in tokamaks, inductive and arc plasma sources, Radio Frequency (RF) helicity and flux injection, RF plasma… more
Abstract:Silicon Carbide (SiC) semiconductors are enabling technologies which bring significant benefits to power distribution equipment for next generation ground vehicles. The high temperature performance and high temperature low on-resistance properties of SiC… more
Abstract:A significant cost and processing time reduction is realized by replacing the difficult manufacturing and machining processes associated with ceramic substrates, such as Silicon Carbide (SiC) or siliconized-SiC, with additive manufacturing or three… more
Abstract:Silicon Carbide based ceramic matrix composites (CMCs) offer the potential to fundamentally change the design and manufacture of gas turbines to significantly increase performance and fuel efficiency over current metal-based designs. Physical Sciences Inc.… more
Abstract:The high temperature operation of Generation IV nuclear systems will require silicon carbide ceramic composites in the reactor core to minimize operational costs and enhance safety. Currently, no ceramic composite fabrication method has been successfully… more
Abstract:Silicon Carbide based ceramic matrix composites (CMCs) offer the potential to fundamentally change the design and manufacture of aeronautical and space propulsion systems to significantly increase performance and fuel efficiency over current metal-based… more
Abstract:… plant highlight the need for enhanced accident tolerance. Of particular concern is the overheating of standard zirconium alloy cladding material in a loss of coolant accident (LOCA). One of the leading, high-risk/high-reward candidates for future claddings is a silicon … more
Abstract:… communications. Specifically, we propose to develop a 20 W power amplifier with an associated PAE of 60% operating over the 31.5 to 34 GHz band. This will be accomplished by employing two major innovations. First, we plan to utilize wide bandgap Gallium Nitride (GaN) on Silicon… more
Abstract:ABSTRACT: Silicon carbide based power devices has several advantages because it can be used in very high power, high temperature, high frequency applications, where conventional silicon devices cannot be used. Despite significant advancement in SiC… more
Abstract:…. In that work, spark igniters were used, and every test resulted in a catastrophic detonation and damage to equipment. In this project, Ultramet will develop a high-performance ignition system for use with O2/CO propellant that is based on resistively heated silicon … more
Abstract:ABSTRACT: During this program, United Silicon Carbide (USCi), Inc. will develop basic analog and digital integrated circuit blocks capable of operation up to 350 oC, based on silicon carbide (SiC) complementary lateral Junction Field Effect Transistor (JFET)… more
Abstract:Solar-blind ultraviolet (UV) imaging is needed in the fields of astronomy, national defense, and bio-chemistry. United Silicon Carbide, Inc. proposes to develop a monolithic, solar-blind UV image sensor with 320 x 256 pixels on a 25 micron pitch with a frame… more
Abstract:… is useful in such applications because of its high melting point (2730 C), low specific weight (3.21 g/cm3), excellent mechanical strength ( & gt;600 MPa) and elastic modulus ( & gt;400 GPa), and a high thermal conductivity (490 W/m-K). Monolithic silicon … more
Abstract:Advanced Ceramic Fibers, LLC has developed a transformational enabling fiber technology for use in UHT turbine engines - alpha silicon carbide/carbon based fibers - with capability above Navy"s goal of 2700 F. Our turbine engine OEM and aerospace team… more
Abstract:Current and next-generation power systems require power devices that operate at high voltages and high frequencies beyond the reliable operating limit of the present silicon- and silicon carbide-based power devices. The material properties of AlN permit power… more
Abstract:This Small Business Innovation Research Phase I project aims to develop a cost-effective and scalable manufacturing process for producing high performance silicon carbide (SiC) fiber for use in protective polymer coatings to increase wear resistance and… more
Abstract:… deposition process, the coating will be more highly adherent, dense, and wear resistant than common coatings from sputtering or arc systems. The coating architecture will begin with a base layer of chromium nitride, which will be followed by lubricious layers of silicon … more
Abstract:This Small Business Innovation Research (SBIR) Phase II project enables an innovative low cost approach to reaction bonded silicon carbide (RBSC). RBSC is a preferred material for mechanical seals, which are critical, costly components in many major… more
Abstract:This Small Business Innovation Research Phase I project is designed to evaluate a novel interphase nanocoating designed for Silicon Carbide (SiC) fibers, which is intended to behave as a biomimetic immune system for high-temperature Ceramic Matrix Composites… more
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