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:
Adopting two-step deposition processes, SiC concentration gradient layer on the surfaceof Cf/C composites were prepared via Self-heating Chemical Liquid Deposition (SHRCLD)technique. In second deposition process, carbon and SiC were codepositted from pure kerosene andTEOS. The temperature of deposition was 1000ºC~1200ºC and the system pressure was 0.1MPa.Different thickness of gradient layers would be attained via adjusting the proportion of TEOS inprocurer and controlling deposition time. Oxidation resistance, and mechanical tests wereinvestigated, and the microstructure was observed under SEM. Results showed that the flexuralstrength of the composites was 123.7 MPa. The antioxidation temperature of Cf/C composites withthe gradient layer is up to 800°C in air. The process of SHCLD technique is simple and easy to becontrolled, and the deposition rate is faster than other conventional technique
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.1310.pdf
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