发明名称 |
DIAMOND-COATED MEMBER AND PROCESS FOR THE PREPARATION THEREOF |
摘要 |
The present invention relates to a diamond-coated member characterized by superposing an acicular diamond layer, an intermediate layer formed by a metal belonging to either of the group IIIb, IVa, Va or VIa of the periodic table or by a compound containing the said metal, Si or B, and a non-acicular diamond layer on the surface of a base material and to a process for the preparation of a diamond-coated member characterized in that a diamond layer is formed on the surface of a base material by vapor phase synthesis method; the resulting diamond layer is converted into acicular diamond by exposing the resulting diamond layer to a gas obtainable by exciting an oxygen-containing etching gas; an intermediate layer comprising a metal belonging to either of the group IIIb, IVa, Va or VIa of the periodic table or by a compound containing the said metal, Si or B is formed on the resulting acicular diamond; and the resulting intermediate layer is exposed to a gas obtainable by exciting a raw material gas containing a carbon source gas. The diamond-coated member according to the present invention is useful as cutting tools and abrasion resistant members. |
申请公布号 |
CA2029873(A1) |
申请公布日期 |
1990.09.11 |
申请号 |
CA19902029873 |
申请日期 |
1990.03.09 |
申请人 |
IDEMITSU PETROCHEMICAL COMPANY LIMITED |
发明人 |
ITO, TOSHIMICHI;TSUBOKAWA, MASAYA;HAYASHI, NARIYUKI |
分类号 |
C23C14/06;C23C14/58;C23C16/02;C23C16/27;C23C16/56;C30B25/02 |
主分类号 |
C23C14/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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