Radiowave absorber
    7.
    发明授权
    Radiowave absorber 有权
    无线电波吸收器

    公开(公告)号:US09225072B2

    公开(公告)日:2015-12-29

    申请号:US13681713

    申请日:2012-11-20

    IPC分类号: H01Q17/00

    CPC分类号: H01Q17/00 H01Q17/004

    摘要: A radiowave absorber of an embodiment includes: core-shell particles each including: a core portion that contains at least one magnetic metal element selected from a first group including Fe, Co, and Ni, and at least one metal element selected from a second group including Mg, Al, Si, Ca, Zr, Ti, Hf, Zn, Mn, rare-earth elements, Ba, and Sr; and a shell layer that coats at least part of the core portion, and includes an oxide layer containing at least one metal element selected from the second group and contained in the core portion; and a binding layer that binds the core-shell particles, and has a higher resistance than the resistance of the core-shell particles. The volume filling rate of the core-shell particles in the radiowave absorber is not lower than 10% and not higher than 55%.

    摘要翻译: 一个实施方案的无线电波吸收器包括:核 - 壳颗粒,每个核 - 壳颗粒包括:芯部,其包含选自包含Fe,Co和Ni的第一组中的至少一种磁性金属元素,以及选自第二组的至少一种金属元素 包括Mg,Al,Si,Ca,Zr,Ti,Hf,Zn,Mn,稀土元素,Ba和Sr; 以及壳层,其涂覆至少部分芯部,并且包括含有选自第二组并且包含在芯部中的至少一种金属元素的氧化物层; 和结合层,其结合核 - 壳颗粒,并且具有比核 - 壳颗粒的电阻更高的电阻。 无线电波吸收体中核 - 壳颗粒的体积填充率不低于10%且不高于55%。