FLAKY SOFT MAGNETIC METAL POWDER AND MAGNETIC CORE MEMBER FOR RFID ANTENNA
    3.
    发明申请
    FLAKY SOFT MAGNETIC METAL POWDER AND MAGNETIC CORE MEMBER FOR RFID ANTENNA 有权
    FLAKY软磁性金属粉末和磁性核心会员RFID天线

    公开(公告)号:US20070221297A1

    公开(公告)日:2007-09-27

    申请号:US11686386

    申请日:2007-03-15

    IPC分类号: H01F1/147

    摘要: The performance index μ′×Q of a magnetic core member, in which an Fe—Si—Cr alloy is used, is further improved. A flaky soft magnetic metal powder, which is used in a magnetic core member for an RFID antenna comprising the above flaky soft magnetic metal powder and a binder, wherein it is composed of an Fe—Si—Cr alloy having an Ms (saturation magnetization)/Hc (coercive force) of 0.8 to 1.5 (mT/Am−1) in an applied magnetic field of 398 kA/m. In the present invention, it is preferable that the flaky soft magnetic metal powder consists of 7 to 23 at % of Si, 15 at % or less of Cr (excluding 0), and the balance being Fe and inevitable impurities, and that it has a weight-average particle size D50 of 5 to 30 μm and an average thickness of 0.1 to 1 μm.

    摘要翻译: 使用Fe-Si-Cr合金的磁芯部件的性能指标mu'xQ进一步提高。 一种片状软磁性金属粉末,其用于包含上述片状软磁性金属粉末和粘合剂的RFID天线用磁芯部件中,其特征在于,由具有Ms(饱和磁化强度)的Fe-Si-Cr合金构成, / Hc(矫顽力)为0.8〜1.5(mT / Am -1)在施加的磁场中为398kA / m。 在本发明中,片状软磁性金属粉末优选为Si:7〜23原子%,Cr(不包括0)为15原子%以下,余量为Fe和不可避免的杂质, 重量平均粒径D 50微米为5〜30μm,平均厚度为0.1〜1μm。

    Manganese-zinc system ferrite
    5.
    发明授权
    Manganese-zinc system ferrite 失效
    锰锌系铁素体

    公开(公告)号:US5498361A

    公开(公告)日:1996-03-12

    申请号:US256903

    申请日:1994-08-08

    CPC分类号: H01F1/344 C04B35/2658

    摘要: For the purpose of improving the initial magnetic permeability of manganese-zinc system ferrite in the high-frequency band of 10 kHz to 500 kHz, a manganese-zinc system ferrite comprising 50-56 mol % of Fe.sub.2 O.sub.3, 22-39 mol % of MnO, and 8-25 mol % of ZnO is fired after adding thereto up to 800 ppm calculated as Bi.sub.2 O.sub.3 of a bismuth oxide component and up to 1,200 ppm calculated as MoO.sub.3 of a molybdenum oxide component in admixture. It has an average grain diameter of from 5 to 50 .mu.m.

    摘要翻译: PCT No.PCT / JP93 / 01920 Sec。 371日期1994年8月8日 102(e)日期1994年8月8日PCT提交1993年12月28日PCT公布。 第WO94 / 14723号公报 日期为1994年7月7日。为了提高10kHz〜500kHz的高频带内的锰锌系铁氧体的初始导磁率,可以使用包含50-56摩尔%的Fe 2 O 3的锰 - 锌系铁氧体, 根据氧化铋成分的Bi 2 O 3计,以氧化铋成分计,以氧化铋成分计为800ppm,以氧化钼成分计算为高达1,200ppm,加入氧化物22〜39摩尔%,氧化锌8-25摩尔%。 平均粒径为5〜50亩。

    Flaky soft magnetic metal powder and magnetic core member for RFID antenna
    7.
    发明授权
    Flaky soft magnetic metal powder and magnetic core member for RFID antenna 有权
    片状软磁金属粉末和磁芯芯片用于RFID天线

    公开(公告)号:US07799147B2

    公开(公告)日:2010-09-21

    申请号:US11686386

    申请日:2007-03-15

    IPC分类号: H01F1/147 H01F1/20

    摘要: The performance index μ′×Q of a magnetic core member, in which an Fe—Si—Cr alloy is used, is further improved. A flaky soft magnetic metal powder, which is used in a magnetic core member for an RFID antenna comprising the above flaky soft magnetic metal powder and a binder, wherein it is composed of an Fe—Si—Cr alloy having an Ms (saturation magnetization)/Hc (coercive force) of 0.8 to 1.5 (mT/Am−1) in an applied magnetic field of 398 kA/m. In the present invention, it is preferable that the flaky soft magnetic metal powder consists of 7 to 23 at % of Si, 15 at % or less of Cr (excluding 0), and the balance being Fe and inevitable impurities, and that it has a weight-average particle size D50 of 5 to 30 μm and an average thickness of 0.1 to 1 μm.

    摘要翻译: 使用Fe-Si-Cr合金的磁芯部件的性能指标μ'×Q进一步提高。 一种片状软磁性金属粉末,其用于包含上述片状软磁性金属粉末和粘合剂的RFID天线用磁芯部件中,其特征在于,由具有Ms(饱和磁化强度)的Fe-Si-Cr合金构成, / Hc(矫顽力)为0.88〜1.5(mT / Am-1),施加磁场为398kA / m。 在本发明中,优选的是,片状软磁性金属粉末由Si的7〜23原子%,Cr(不包括0)为15原子%以下,余量为Fe和不可避免的杂质, 重均粒径D50为5〜30μm,平均厚度为0.1〜1μm。