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公开(公告)号:US4888142A
公开(公告)日:1989-12-19
申请号:US139109
申请日:1987-12-22
申请人: Kenrou Hayashi , Reiji Oguma , Masayuki Tamura
发明人: Kenrou Hayashi , Reiji Oguma , Masayuki Tamura
IPC分类号: C01B21/068 , C04B35/593 , C23C16/34 , C30B15/10 , C30B35/00
CPC分类号: C30B35/002 , C01B21/0687 , C04B35/593 , C04B35/5935 , C23C16/345 , C30B15/10 , C01P2002/02 , C01P2006/80
摘要: Disclosed is a process for producing .beta.-form Si.sub.3 N.sub.4 comprising firing amorphous or .alpha.-form Si.sub.3 N.sub.4 of high chemical purity in a non-oxidizing atmosphere under an elevated pressure at a temperature of at least about 1600.degree. C., as well as a process for producing an article comprising such .beta.-form Si.sub.3 N.sub.4.
摘要翻译: 公开了一种生产β型Si 3 N 4的方法,包括在非氧化性气氛中,在至少约1600℃的温度下,在高压下,烧制具有高化学纯度的无定形或α型Si 3 N 4,以及 生产包含这种β型Si 3 N 4的制品。