| 摘要 |
PROBLEM TO BE SOLVED: To provide a deposition film coated iron powder for producing a high resistance composite soft magnetic material. SOLUTION: There is provided a deposition film coated iron powder comprising an iron powder having its surface coated with a deposition film containing an Mg-Fe-P-O quarternary phosphate compound composed of Mg, Fe, P and O and an Mg-Fe-O ternary oxide composed of Mg, Fe and O, and in which iron phosphate particulates are dispersed into a matrix, wherein the Mg-Fe-P-O quarternary phosphate compound and the Mg-Fe-O ternary oxide contain a crystalline MgO solid solution wustite type phase, and the deposition film has a microcrystalline structure of≤200 nm crystal grain diameter. COPYRIGHT: (C)2007,JPO&INPIT
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