发明名称 |
Magnetically soft, high saturation magnetization laminates of iron-cobalt-nitrogen and iron-nickel |
摘要 |
In one aspect, a laminated structure including a first plurality of layers containing primarily-iron FeCoN interleaved with a second plurality of layers containing primarily iron FeNi is disclosed. The structure has an easy axis of magnetization and a hard axis of magnetization, has a magnetic saturation of at least about twenty-three-thousand Gauss, and has a magnetic coercivity measured substantially along its hard axis of magnetization that is less than two Oersted. Additional elements can be added in minority concentrations to form primarily-iron FeCoN layers with increased resistivity. The laminated structure has applicability in various fields in which high saturation magnetization, magnetically soft materials are advantageous, particularly for inductive heads.
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申请公布号 |
US6778358(B1) |
申请公布日期 |
2004.08.17 |
申请号 |
US20020137030 |
申请日期 |
2002.05.01 |
申请人 |
WESTERN DIGITAL (FREMONT), INC. |
发明人 |
JIANG HAI;CHEN YINGJIAN;DANG XIAOZHONG;KROUNBI MOHAMAD T. |
分类号 |
G11B5/127;G11B5/21;G11B5/31;G11B5/39;(IPC1-7):G11B5/39 |
主分类号 |
G11B5/127 |
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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