| 摘要 |
PROBLEM TO BE SOLVED: To provide iron silicide powder small in oxygen of a gas component contained in the iron silicide powder and easy to be pulverized to decrease the incorporation of impurities produced when the pulverization has failed, having large specific surface area of the iron silicide powder and increasing the density when being sintered. SOLUTION: The iron silicide powder mainly comprising FeSi<SB>2</SB>is manufactured by reducing iron oxide with hydrogen to form iron powder, heating the iron powder and Si powder in a non-oxidizing atmosphere to form synthetic powder mainly containing FeSi and adding and mixing Si powder again and heating in the non-oxidizing atmosphere. COPYRIGHT: (C)2010,JPO&INPIT |
