发明名称 |
Method of forming high-temperature magnetic articles and articles formed thereby |
摘要 |
Ceramic-coated powdered ferromagnetic materials for forming magnetic articles, and which maintain the mechanical and magnetic properties of the articles at high temperatures, such as during annealing to relieve stresses induced during the forming operation. The ceramic coatings are formed by one of several techniques to provide an encapsulating layer on each ferromagnetic particle. The particles are then compacted to form a solid magnetic article, which can be annealed without concern for degrading the ceramic coating.
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申请公布号 |
US6193903(B1) |
申请公布日期 |
2001.02.27 |
申请号 |
US19990311714 |
申请日期 |
1999.05.14 |
申请人 |
DELPHI TECHNOLOGIES, INC. |
发明人 |
GAY DAVID EARL;SCORE DAVID ALLEN |
分类号 |
B22F1/02;H01F1/24;H01F41/02;(IPC1-7):H01F1/37;H01F1/39 |
主分类号 |
B22F1/02 |
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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