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US 5,334,565 AGranted
Method of manufacturing silicon nitride whiskers
AssigneesNakama Syokai Company, Tokai Kogyo Kabushiki Kaisha, Yusaku Takita, Ohita Gas Co., Ltd., Ohgasu Co., Ltd.
InventorsYusaku Takita, Tatsumi Ishihara, Yukako Mizuhara, Masao Noguchi
Life of this patent
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Abstract
Disclosed is a method for producing long silicon nitride whiskers. The production method encompasses reacting diatomaceous earth on a carbon boat in a gas flow composed of a reducing agent and a nitriding agent at a temperature of 1,200.degree.-1,700.degree. C.
Claims12
A method of producing fibriform silicon nitride from a raw silicon-contalnlng material, comprising:
- treating the raw silicon-containing material and a catalytic element in an atmosphere including a reducing agent and a nitrfhing agent at a temperature within a range of approximately 1.200.degree. C. to 1,700.degree. C.
Dependencies are inferred from the claim text.