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A process for the preparation of a soft-magnetic sintered material is of hexagonal ferrite and a soft magnetic sintered material of hexahonalem ferrite

机译:制备软磁烧结材料的方法是六方铁氧体和六方钠铁氧体软磁烧结的材料

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a soft magnetic hexagonal ferritic sintered compact by which larger crystal grains can be produced compared with those by the conventional production method, and to provide a soft magnetic hexagonal ferritic sintered compact having a structure in which large crystal grains are oriented. ;SOLUTION: A method for producing a soft magnetic hexagonal ferritic sintered compact containing the crystal grains of M type hexagonal ferrite expressed by the general formula of MFe12O19 (wherein, M is one or more kinds selected from Ba, Sr and Pb) is provided. In this production method, the crystal grains having a grain diameter of 5 to 100 μm are separated from the sintered compact produced from the raw material mixed powder of the crystal grains, and, with the crystal grains as seed crystals, a mixture of the seed crystals and calcined powder as fine crystals with a grain diameter of 0.5 to 3 μm having the above composition is burned, and the crystal grains in the sintered compact are grown till the average grain diameter reaches 30 to 500 μm.;COPYRIGHT: (C)2003,JPO
机译:解决的问题:提供一种生产软磁性六角形铁素体烧结体的方法,与常规生产方法相比,该晶粒可以产生更大的晶粒,并且提供一种结构如下的软磁性六角形铁素体烧结体。大晶粒取向。 ;解决方案:一种制造软磁性六角形铁素体烧结体的方法,该烧结体包含由MFe 12 O 19 通式表示的M型六角形铁素体晶粒(其中, M为选自Ba,Sr和Pb中的一种或多种。在该生产方法中,将晶粒直径为5至100μm的晶粒与由晶粒的原料混合粉生产的烧结体分离,并以晶粒作为籽晶,将它们的混合物制成。将具有上述组成的晶粒直径为0.5至3μm的作为细晶的晶种和煅烧粉末燃烧,并且使烧结体中的晶粒生长直至平均晶粒直径达到30至500μm。 ;版权:(C)2003,日本特许厅

著录项

  • 公开/公告号DE60220601T2

    专利类型

  • 公开/公告日2007-09-27

    原文格式PDF

  • 申请/专利权人

    申请/专利号DE2002620601T

  • 发明设计人

    申请日2002-08-21

  • 分类号C04B35/26;H01F1/34;

  • 国家 DE

  • 入库时间 2022-08-21 20:27:49

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