Affiliation:
1. China Building Materials Academy
Abstract
Silicon carbide ceramic has many attributes including high strength and stiffness, low thermal
expansion coefficient, high thermal conductivity, low density and good resistant for radiation of space
particles. These attributes make SiC ceramic becoming the third generation space mirror material. This
paper describes the fabrication of lightweight SiC mirror blanks. By reducing the shrinkage of green body
and controlling the drying conditions, lightweight SiC mirror blank with a diameter of 612mm has been
prepared by using gelcasting process. The forming green body is infiltrated with liquid silicon at the
temperature of 1600°C, then a CVD SiC layer is coated on the surface of SiC mirror blank. After grinding
and polishing, the mirror shows good optical properties.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference8 articles.
1. M. A. Pickering, R. L. Taylor and J. T. Keeley: Nuclear Instruments and Methods in Physics Research Vol. A291 (1990), p.95.
2. S. V. Lyubarskii and Yu. P. Khimich: J. Opt. Technol. Vol. 61 (1994), p.61.
3. D. B. Leviton, T. T. Saha and L. D. Gardner: SPIE Vol. 3443, p.19.
4. J. W. Bender and D. G. Ewing: SPIE, Vol. 2018 (1993), p.248.
5. S. Johnson: SPIE, Vol. 2018 (1993), p.237.
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献