Ultralightweight C-SiC composite mirrors

Witold Kowbel; William Champion; James C. Withers

doi:10.1117/12.447322

5 November 2001 Ultralightweight C-SiC composite mirrors

Witold Kowbel, William Champion, James C. Withers

Proceedings Volume 4444, Optomechanical Design and Engineering 2001; (2001) https://doi.org/10.1117/12.447322
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

A novel technology to fabricate ultralightweight mirrors was demonstrated. High thermal conductivity C-C composite integrated honeycomb face sheets were fabricated using a tape layup. Chemical Vapor Deposition (CVR)-SiC was employed to produce a functionally graded transition in CTE from about 0 ppm/K to about 4.5 ppm/K. A crack free CVR-SiC surface was achieved which was subsequently polished. A 1 kg/m2 SiC mirror structure was demonstrated.

Citation Download Citation

Witold Kowbel, William Champion, and James C. Withers "Ultralightweight C-SiC composite mirrors", Proc. SPIE 4444, Optomechanical Design and Engineering 2001, (5 November 2001); https://doi.org/10.1117/12.447322

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