Process for producing dispersion strengthened precious metal...

Details Process for producing dispersion strengthened precious metal... Process for producing dispersion strengthened precious metal...

C - Chemistry, Metallurgy

22

C

75/162, 75/1.2

C22C 1/05 (2006.01) C03B 37/095 (2006.01) C22C 1/10 (2006.01) C22C 32/00 (2006.01)

Patent

CA 1178828

ABSTRACT OF THE DISCLOSURE A process for producing dispersion-strengthened pre- cious metal alloys having superior creep resistance is disclosed. According to this invention precious metal powders and disper- soids are mechanically alloyed together. High energy ball mill- ing can be used to achieve the mechanical alloying. After the mechanical alloying step, the resulting powder is consolidated by vacuum hot pressing at elevated temperature and pressures. The precious metal powder can be platinum or a platinum alloy. The dispersoids can include yttria (Y2O3).

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