Environmental simulation evaluation of SSiC brazed optical mirrors

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	Environmental simulation evaluation of SSiC brazed optical mirrors
	Liu, Yan; Ma, Zhen; Chen, Jian; Chen, Zhongming; Liu, Xuejian; Huang, Zhengren
	2014
会议名称	7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, AOMATT 2014
会议日期	2014-04-26
会议地点	Harbin, China
出版者	SPIE
会议主办者	Chinese Academy of Sciences, Institute of Optics and Electronics (IOE); Chinese Optical Society (COS)
产权排序	2
摘要	Sintered silicon carbide (SSiC) is becoming one of the most important materials for the optical mirrors due to its excellent specific stiffness (E/ρ) and demission stability (λ/α). However, it is difficult to fabricate the monolithic structure SSiC optical mirror with demission of larger than Φ1.5m because of process limitation. Joining of SSiC segments (brazing) provide a good solution to prepare large size mirror optics. However, compared with the uniform properties of the monolithic structure SSiC optical mirror, the brazed mirror is composed of two materials (SSiC segments and brazing material), so the performance of optical grinding and reliability of brazed optical mirrors become the focus. In this paper, the Φ300mm and Φ600mm brazed optical mirrors was used to evaluate the reliability of different conditions. Three kinds of environmental simulation tests, including thermal stability, thermal circle and random vibration were carried out. The evaluation results show that the temperature and vibration has no obvious effects on the surface figure (RMS) of the brazed optical mirrors. © 2014 SPIE.
作者部门	空间光学技术研究室
收录类别	EI
语种	英语
ISSN号	0277786X
文献类型	会议论文
条目标识符	http://ir.opt.ac.cn/handle/181661/22601
专题	空间光学技术研究室
推荐引用方式 GB/T 7714	Liu, Yan,Ma, Zhen,Chen, Jian,et al. Environmental simulation evaluation of SSiC brazed optical mirrors[C]:SPIE,2014.

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