发明名称 |
Cobalt base alloy as protective layer for magnetic recording media |
摘要 |
A magnetic recording media is manufactured by depositing a nonmagnetic cobalt base alloy onto a substrate preferably aluminum as a protective layer for the substrate. The cobalt alloy includes chromium, tungsten, and nickel. The clad protective layer can be deposited in several steps with or without a polishing between the deposition steps to provide better corrosion protection for the substrate and covers surface imperfections of the substrate. The cobalt alloy is preferably sputtered onto the prepared substrate.
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申请公布号 |
US4079169(A) |
申请公布日期 |
1978.03.14 |
申请号 |
US19760742163 |
申请日期 |
1976.11.15 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
NIGH, MAX THOMAS;ROSS, RONALD ALLAN;TIETZE, ARMIN RUDOLF |
分类号 |
G11B5/66;C22C19/07;C23C14/02;G11B5/64;G11B5/73;G11B5/738;G11B5/851;H01F10/26;(IPC1-7):B32B15/00;G11B5/00 |
主分类号 |
G11B5/66 |
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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