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 coatings on graphite were prepared through polymer vapor pyrolysis depositionprocess (PVPD) under N2 atmosphere. During this process, some low molecular weight substances thatpolycarbosilane (PCS) pyrolyzed can be deposited on graphite, and they can convert into SiC in hightemperature. The results of XRD showed that amorphous SiC coatings were formed on graphite when thepyrolysis temperature was 1000°C, andβ-SiC phase formed in the coatings when the temperature up to1250°C. Effects of the coatings on the microstructure and properties were investigated. It was shown thatthe uniform dense SiC coatings could be obtained by carefully controlling the pyrolysis temperature andramping rate when the number molecular weight of PCS was in the range of 1,000~1,500
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.1297.pdf
