A Graded Density SiC Foam for Lightweight Optics
Small Business Information
Materials & Electrochemical Research Cor
7960 S. Kolb Road, Tucson, AZ, 85706
Dr. JC Withers
AbstractLightweight silicon carbide optics and structures are extremely important to explore the Structure and Evolution of the Universe. State-of-the-art SiC is too heavy, contains other phases which interfere with producing an acceptable optical surface and is anistropic causing distortions with temperature excursions. In this program a functionally graded density isotropic silicon carbide foam will be formed insitu with a unique high density isotropic SiC structure which has a skin of defect free silicon carbide that can be polished ultra-smooth. The functionally density graded isotropic SiC foam structure containing no other phases will be utilized to produce SiC optics with an areal density less than 1 kg/m2. Sample optics will be delivered to NASA.
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