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UHTC: Convection Patterns in Liquid Oxide Films on ZrB2-SiC Composites Oxidized at High Temperature
Sponsor:
ONR
Recently, convection patterns in liquid oxide films formed during oxidation of ZrB2-SiC composites at temperature between 1400-1600oC has been discovered by Karlsdottir and Halloran. During the high temperature oxidation of ZrB2-SiC composites, liquid boron oxide is formed at the ZrB2-ZrO2 interface and transported |
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Rapid Investigations of Ultra-high Temperature ceramics
Sponsor:
ONR
Ultrahigh temperature materials are receiving more attention due to an increase need for materials for extreme environments. Researches have shown the ultra high temperature ceramic (UHTC) composites ZrB2-SiC and HfB2/SiC have the most promise for use at ultrahigh temperatures due to their high melting temperatures, |
Ultra-wideband Conformal Antennas / Miniaturized Antennas with Electromagnetic Metamaterials
Sponsor:
ONR/ DARPA
Meta Materials. Meta dielectrics are created using effective medium principles to control the relative permittivity of materials. This is achieved by controlling the relative density using conventional powder processing techniques as well as unconventional method of Micro Fabrication by Co-eXtrusion (MFCX). These new materials are |
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Intergrally Cored Ceramic Mold fabricated by Ceramic Stereolithography (CerSLA)
Sponsor:
Navair - ONR
Ceramic stereolithography (CerSLA) builds ceramic green objects from CAD files from many thin liquid layers of powder in monomer, which are solidified by polymerization with a UV laser, thereby “writing” the design for each slice. Since it is possible to directly build ceramic green |
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Commercialization of Portable Solid Oxide Fuel Cells
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HECAM: "hydrogen energy with carbon materials"HECAM is the novel concept of pyrolyzing hydrocarbon |
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