公开(公告)号：US5543989A

公开(公告)日：1996-08-06

申请号：US452202

申请日：1995-05-26

申请人： John D. Westwood

发明人： John D. Westwood

IPC分类号： C23C14/06 ,  G11B5/147 ,  G11B5/31 ,  G11B5/39 ,  H01F10/08 ,  H01F10/14 ,  H01F10/32 ,  H01F41/18 ,  H01F41/30 ,  G11B5/127

CPC分类号： B82Y25/00 ,  B82Y40/00 ,  G11B5/3109 ,  G11B5/3113 ,  G11B5/3153 ,  G11B5/3903 ,  G11B5/3967 ,  H01F10/145 ,  H01F10/147 ,  H01F10/32 ,  H01F41/302 ,  Y10T428/12465 ,  Y10T428/12674 ,  Y10T428/12736 ,  Y10T428/12757 ,  Y10T428/12764 ,  Y10T428/12951 ,  Y10T428/12958

摘要： Laminated films of SiAlFe alloy (sendust) providing optimized magnetic and mechanical properties for magnetic shield and magnetic pole tip applications are described. A multilayered magnetic structure including a seed layer of a first sendust alloy and a bulk layer of a second sendust alloy overlying the seed layer provides provides greatly improved anisotropic field and soft magnetic characteristics for the structure over a relatively wide range of compositions for the sendust material used for the bulk layer. The seed layer can be a single sendust layer or, alternatively, can be a multilayered structure including layers of a gas-doped sendust material and layers of non-doped sendust material formed in an alternating sequence. The dopant gas is a gas such as nitrogen, oxygen or air, for example. Because of the hardness exhibited by sendust films, the described multilayered sendust films are excellent candidates for magnetic shields and inductive pole tips exposed at the air bearing surface of a transducer.

摘要翻译： 描述了为磁屏蔽和磁极尖端应用提供优化的磁性和机械性能的SiAlFe合金（铁硅铝铁合金）的层压膜。 包括第一硅酸盐合金的晶种层和覆盖种子层的第二硅酸盐化合物的本体层的多层磁性结构提供了在用于铁素体材料的相对宽范围的组合物范围内的结构的极大改善的各向异性场和软磁特性 用于批量层。 种子层可以是单个硅酸盐层，或者可以是多层结构，其包括气体掺杂的硅铝矿材料层和以交替顺序形成的非掺杂的铁水体材料层。 掺杂气体例如是氮气，氧气或空气等气体。 由于硅铝薄膜所呈现的硬度，所描述的多层铁硅铝膜是在换能器的空气轴承表面处露出的磁屏蔽和感应极尖的优选候选。