| 摘要 |
PROBLEM TO BE SOLVED: To inexpensively produce allay powder having 0.1 to 10μm average grain size and good in dispersibility. SOLUTION: This method consists of a primary stage in which the oxide, hydroxide and carbonate powder of magnesium and calcium and the oxide, hydroxide and carbonate powder of two kinds of metals are mixed, a secondary stage in which >= two kinds of metals in the mixture obtd. by the primary stage are reduced to metallic shapes in a hydrogen atmosphere, a third stage in which >= two kinds of metallic metals obtd. by the secondary stage are alloyed and a fourth stage in which the compds. of magnesium and calcium in the heated product obtd. by the third stage are dissolved with acid and removed.
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