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    • 10. 发明授权
    • Pt or Pt alloy materials hardened by oxide dispersion, produced by inner oxidation and having proportions of oxide and good ductility
    • Pt或Pt合金材料通过氧化物分散体硬化,通过内部氧化产生并具有氧化物和良好延展性的比例
    • US08226855B2
    • 2012-07-24
    • US12030910
    • 2008-02-14
    • Harald ManhardtTanja EckardtDavid Francis Lupton
    • Harald ManhardtTanja EckardtDavid Francis Lupton
    • H01B1/02H01B1/22
    • C22C5/04C22C1/1078C22C32/0021
    • A solid body of a metal alloy comprising less than 99% by weight of noble metal and more than 1% by weight of dispersion-strengthening metals is converted for production of a dispersion-strengthened platinum material by at least 90% oxidation of the dispersion-strengthening metals into a dispersion-strengthened platinum material. The dispersion-strengthened platinum material contains a noble metal component of platinum or a platinum alloy amounting to between 95 and 99% by weight and a dispersion-strengthening agent. The noble metal component includes at least 55% by weight Pt, 0 to 30% by weight Rh, 0 to 30% by weight Au, and 0 to 40% by weight Pd. The remaining proportion by mass of more than 1% by weight is a dispersion-strengthening agent, which contains at least one metal oxidized at least 90% by weight with oxygen, the metal being selected from the group of Ce, Zr, Sc, and Y.
    • 将包含小于99重量%的贵金属和大于1重量%的分散强化金属的金属合金的固体转化为通过分散强化金属的至少90%的氧化来生产分散强化的铂材料, 将金属加强成分散强化的铂材料。 分散强化的铂材料含有铂或铂合金的贵金属组分,其含量为95-99%(重量),和分散强化剂。 贵金属组分包括至少55重量%的Pt,0至30重量%的Rh,0至30重量%的Au和0至40重量%的Pd。 剩余的重量比大于1%的分散强化剂是含有至少一种与氧氧化至少90重量%的金属的分散强化剂,该金属选自Ce,Zr,Sc和 Y.