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Title: Method for producing silicon nitride/silicon carbide composite

Silicon carbide/silicon nitride composites are prepared by carbothermal reduction of crystalline silica powder, carbon powder and optionally crsytalline silicon nitride powder. The crystalline silicon carbide portion of the composite has a mean number diameter less than about 700 nanometers and contains nitrogen.
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  1. (Midland, MI)
Publication Date:
OSTI Identifier:
Report Number(s):
US 5538675
US patent application 08/227,751
DOE Contract Number:
Resource Type:
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
method; producing; silicon; nitride; carbide; composite; composites; prepared; carbothermal; reduction; crystalline; silica; powder; carbon; optionally; crsytalline; portion; mean; diameter; 700; nanometers; contains; nitrogen; silica powder; carbide composite; nitride powder; silicon nitride; silicon carbide; crystalline silicon; producing silicon; carbon powder; carbide portion; carbothermal reduction; crystalline silica; contains nitrogen; /264/