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Powder containing 2H-type silicon carbide produced by reacting silicon dioxide and carbon powder in nitrogen atmosphere in the presence of aluminumThe production of powder which contains silicon carbide consisting of 40% of 2H-type silicon carbide, beta type silicon carbide and less than 3% of nitrogen is discussed. The reaction temperature to produce the powder containing 40% of 2H-type silicon carbide is set at above 1550 degrees C in an atmosphere of aluminum or aluminum compounds and nitrogen gas or an antioxidation atmosphere containing nitrogen gas. The mixture ratio of silicon dioxide and carbon powder is 0.55 - 1:2.0 and the contents of aluminum or aluminum compounds within silicon dioxide is less than 3% in weight.
Document ID
19850001860
Acquisition Source
Legacy CDMS
Document Type
Other - Other
Authors
Kuramoto, N. (NASA Headquarters Washington, DC United States)
Takiguchi, H. (NASA Headquarters Washington, DC United States)
Date Acquired
September 5, 2013
Publication Date
August 1, 1984
Subject Category
Metallic Materials
Report/Patent Number
NASA-TM-77597
NAS 1.15:77597
Accession Number
85N10167
Funding Number(s)
CONTRACT_GRANT: NASW-3541
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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