Bonding skill between the fused-quartz mirror and the composite substrate

Shibin Jiang; Huirong Wang; Yasi Jiang; Biao Wang; Menda Chen

doi:10.1117/12.48311

1 November 1991 Bonding skill between the fused-quartz mirror and the composite substrate

Shibin Jiang, Huirong Wang, Yasi Jiang, Biao Wang, Menda Chen

Proceedings Volume 1535, Passive Materials for Optical Elements; (1991) https://doi.org/10.1117/12.48311
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

The possibility for forming fused quartz layer on the substrate of carbon fiber reinforced fused quartz (CFRFQ) was investigated by melting fused quartz powder with an oxygen-hydrogen flame, chemical vapor deposition, and sol-gel method. Many kinds of bonding methods between fused quartz mirror surfaces and CFRFQ substrates were investigated, including hot- pressing directly with the mixture of fused quartz power and carbon fibers and hot-pressing secondly by adding powder between the mirror surface and the substrate. The fused quartz block could be bonded firmly under conditions of 20kg/cm2, 1240 degree(s)C, and 5 minutes, when silica powder prepared by sol-gel method was added in the midst. There is no crystallization in the middle silica layer, and the tensile strength is large. Three specimens with a diameter of 100mm and some small ones have been fabricated by this method, and the thermal deformation stability of this type of composite reflector is better than fused quartz mirror.

Citation Download Citation

Shibin Jiang, Huirong Wang, Yasi Jiang, Biao Wang, and Menda Chen "Bonding skill between the fused-quartz mirror and the composite substrate", Proc. SPIE 1535, Passive Materials for Optical Elements, (1 November 1991); https://doi.org/10.1117/12.48311

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