摘要
介绍了大口径轻质碳化硅反射镜镜坯的基本结构、性能测试指标、国内应用及发展前景;阐述了碳化硅凝胶注模成型(Gel-casting)、反应烧结SiC(RB-SiC)与压力成型、常压烧结SiC(SSiC)两种国内主要制备大口径轻质碳化硅反射镜的方法;并对两种方法制备得到的1.45 m碳化硅镜坯的性能、测试数据及光学加工后的光学特性进行分析和比对,提出存在的问题,以供商榷,进而促进国内大口径轻质碳化硅反射镜的研究和发展。
The structures, performances and applications of large scale lightweight SiC mirror blank were in-troduced.Two fabricating process dominating in our country , namely gel-casting forming followed by reaction sintering（RB-SiC） and Sintered Silicon Carbide （SSiC） via pressure molding and pressureless sintering , were elaborated which were adopted to produce φ1.45 m lightweight SiC mirrors .By comparing the performances , testing results and optical properties SiC mirrors fabricated via two different processes mentioned above , we an-alyse the problems existing in the fabricating process to further improve the development of large scale light -weight SiC mirror .
出处
《中国光学》
EI
CAS
2014年第4期552-558,共7页
Chinese Optics
