Metallic iron particles for magnetic recording
    1.
    发明授权
    Metallic iron particles for magnetic recording 失效
    用于磁记录的金属铁颗粒

    公开(公告)号:US4256484A

    公开(公告)日:1981-03-17

    申请号:US61797

    申请日:1979-07-30

    摘要: In the process for preparing a magnetically stable, powder comprising the steps of reducing an iron oxide or iron oxide hydrate with a gaseous reduction agent and stabilizing the metallic powder thus produced, the improvement which comprises enhancing its reduction by coating said iron oxide or iron oxide hydrate with an antimony compound at a level of up to about 7 weight percent antimony based on the weight of the iron oxide prior to said reduction.

    摘要翻译: 在制备磁稳定粉末的方法中,包括用气态还原剂还原氧化铁或氧化铁水合物并稳定所产生的金属粉末的步骤,其改进包括通过涂覆所述氧化铁或氧化铁来增强其还原 在所述还原之前基于氧化铁的重量,以高达约7重量%的锑水平与锑化合物水合。