| 摘要 |
An iron silicide powder, characterized in that it has a content of oxygen, which is a gas component defined in the present specification, of 1500 ppm or less; and a method for producing the iron silicide powder, which comprises reducing an iron oxide with hydrogen to prepare a iron powder, heating the iron powder and an Si powder in a non-oxidizing atmosphere, to prepare a synthetic powder comprising FeSi as a primary component, mixing the synthetic powder again with an Si powder and heating the mixture in a non-oxidizing atmosphere, to prepare an iron silicide powder comprising FeSi2 as a primary component. The iron silicide powder has a reduced content of oxygen and is easy to pulverize, and thus is reduced in the contamination of impurities associated with unsatisfactory pulverization, and further exhibits an increased specific surface area, which leads to the formation of a sintered compact having an enhanced density.
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