摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a sintered composite soft magnetic material which excels in the specific resistance and mechanical strength. SOLUTION: Soft magnetic metallic powder or oxidized soft magnetic metallic powder is added with Mg powder to obtain a mixed powder. The mixed powder is heated to a temperature of 150-1100°C and in a vacuum of 1×10<SP>-12</SP>-1×10<SP>-1</SP>MPa pressure or in an inert gas atmosphere, to make magnesium-coated soft magnetic powder, and the magnesium-coated soft magnetic powder is left in an oxidizing atmosphere or is heated therein, to produce a magnesium oxide-coated soft magnetic powder. The magnesium oxide-coated soft magnetic powder is added and mixed with silicon oxide to make a mixture, and the mixture is compressed and molded to produce a compact, and thereafter the compact is baked. COPYRIGHT: (C)2006,JPO&NCIPI
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