发明名称 |
CORROSION RESISTANT MAGENTIC RECORDING MEDIA |
摘要 |
A thin film magnetic recording medium for deposition on a record carrier includes a ferromagnetic alloy containing iron, cobalt and chromium. The ferromagnetic alloy consists of from 0-55% cobalt, from 8-22% of chromium with the remainder iron. The preferred range of chromium is from 10-18%. The magnetic recording layer is vacuum deposited over an extended portion of a record carrier for storing information which is represented by the spatial distribution of magnetic transitions in the magnetic layer. The iron-cobalt-chromium or iron-chromium composition according to this invention, gives the best magnetic properties consistent with excellent corrosion resistance. |
申请公布号 |
AU4980579(A) |
申请公布日期 |
1980.05.08 |
申请号 |
AU19790049805 |
申请日期 |
1979.08.10 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORP. |
发明人 |
JOHN DANIEL MICHAELSEN;DANIEL ANDREW NEPELA;PETER BEVERLEY POWELL PHIPPS |
分类号 |
G11B5/66;C22C19/07;C22C38/00;G11B5/64;H01F10/14;H01F10/16;H01F41/20 |
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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