ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Silicon carbide ceramic has many attributes including high strength and stiffness, low thermalexpansion coefficient, high thermal conductivity, low density and good resistant for radiation of spaceparticles. These attributes make SiC ceramic becoming the third generation space mirror material. Thispaper describes the fabrication of lightweight SiC mirror blanks. By reducing the shrinkage of green bodyand controlling the drying conditions, lightweight SiC mirror blank with a diameter of 612mm has beenprepared by using gelcasting process. The forming green body is infiltrated with liquid silicon at thetemperature of 1600°C, then a CVD SiC layer is coated on the surface of SiC mirror blank. After grindingand polishing, the mirror shows good optical properties
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1151.pdf
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