Fabricating of Ф4m CIOMP-SiC mirror blank

Ge Zhang; Congcong Cui; Binchao Dong; Qi Cao; Jianxun Bao

doi:10.1117/12.2505588

11 January 2019 Fabricating of Φ4m CIOMP-SiC mirror blank

Ge Zhang, Congcong Cui, Binchao Dong, Qi Cao, Jianxun Bao

Proceedings Volume 10837, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 108370I (2019) https://doi.org/10.1117/12.2505588
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

Abstract

Successful fabricating of φ4m silicon carbide (SiC) mirror blank after 20 years of research in Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP). Preparing 12 monolithic SiC green bodies with a partially closed back by lost foam and gelcasting technology, joining 12 SiC monolithic green bodies by reaction-formed technology, and densifying SiC mirror blank by reaction sintering technology. The testing results show that the performances of CIOMP-SiC could meet requirements, and the root mean square (RMS) value of φ4m CIOMP-SiC surface shape is better than λ/30 (λ=632.8nm).

Citation Download Citation

Ge Zhang, Congcong Cui, Binchao Dong, Qi Cao, and Jianxun Bao "Fabricating of Φ4m CIOMP-SiC mirror blank", Proc. SPIE 10837, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 108370I (11 January 2019); https://doi.org/10.1117/12.2505588

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