Ferrite sintered compact
    3.
    发明授权
    Ferrite sintered compact 有权
    铁氧体烧结体

    公开(公告)号:US06375862B1

    公开(公告)日:2002-04-23

    申请号:US09663197

    申请日:2000-09-18

    IPC分类号: C04B3526

    摘要: The present invention can provide a MgCuZn-based ferrite sintered compact which is constituted by having as substantial main component compositions 7.5 to 23.0 mole % of magnesium oxide, 7.0 to 20.0 mole % of copper oxide, 19.0 to 24.2 mole % of zinc oxide and 48.5 to 50.3 mole % of ferric oxide, and the average particle diameter of the ferrite sintered compact is in a range of 1.10 to 7.30 &mgr;m while the standard deviation &sgr; of the size distribution is in a range of 0.60 to 10.00, resulting in the ferrite sintered compact which has a high impedance with a frequency of not less than 50 MHz and is capable of efficiently cutting of radiant noise by selecting inexpensive materials.

    摘要翻译: 本发明可以提供一种MgCuZn系铁氧体烧结体,其主要成分为7.5〜23.0摩尔%的氧化镁,7.0〜20.0摩尔%的氧化铜,19.0〜24.2摩尔%的氧化锌,48.5重量% 至50.3摩尔%的氧化铁,铁素体烧结体的平均粒径在1.10〜7.30μm的范围内,而尺寸分布的标准偏差σ在0.60〜10.00的范围内,导致铁氧体烧结 具有频率不低于50MHz的高阻抗,并且能够通过选择便宜的材料有效地切割辐射噪声。

    Oxide magnetic materials, making method, antenna coils, and inductance
elements
    4.
    发明授权
    Oxide magnetic materials, making method, antenna coils, and inductance elements 失效
    氧化物磁性材料,制造方法,天线线圈和电感元件

    公开(公告)号:US5916476A

    公开(公告)日:1999-06-29

    申请号:US47999

    申请日:1998-03-26

    摘要: To an oxide magnetic material consisting essentially of, calculated as oxides, 15-30 mol % of Fe.sub.2 O.sub.3, 6-12 mol % of CuO, and 58-79 mol % of NiO as main ingredients, 1.5-4.5% by weight of PbO, 1.0-3.7% by weight of SiO.sub.2, 0.7-1.0% by weight of CoO, and 0.01-1.0% by weight of ZnO are added as additives. The material is suited to form magnetic cores for operation in high-frequency bands.

    摘要翻译: 对于主要由氧化物计算的氧化物磁性材料,以Fe2O3为15-30摩尔%,CuO为6-12摩尔%,NiO为58-79摩尔%为主要成分,1.5〜4.5重量%的PbO, 加入1.0-3.7重量%的SiO 2,0.7-1.0重量%的CoO和0.01-1.0重量%的ZnO作为添加剂。 该材料适合于形成用于在高频带中操作的磁芯。