ISSN:
1662-9752
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:
The objective of the present work is to examine the preparation and characterization ofthe SiC sponge obtained by direct synthesis of high purity graphite and silicon powder in inertatmosphere at 1900 - 2000 0C for 2-3 hours. To burn out the carbon excess the samples weresubsequently heated in oxygen atmosphere at 800 -900 0C resulting in a weight loss of SiC. Therelative density of SiC sponge is 1.5-1.7 g/cm 3. The advantages of the proposed method are thehigh rate of ceramic yield and capability to create the ceramic samples of preliminary selectedshape by using a graphite cell of different configurations. Raman scattering spectroscopy andelectron paramagnetic resonance (EPR) data have shown that SiC sponge produced by directsynthesis of graphite and silicon powder consists of 6H and 3C SiC polytypes
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/17/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.556-557.399.pdf
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