| 简介 |
PROBLEM TO BE SOLVED : To provide an iron nitride powder which has both superior magnetic property and temporal stability, and is suitable for high density recording.
SOLUTION : The iron nitride powder consists of mainly Fe16N2 and has, on at least a part of the powder particle surface, a coating layer including at least one element selected from the group consisting of rare earth metal elements, aluminum and silicon, and cobalt-containing ferrite with a composition represented by (CoxFe1-x)Fe2O4, wherein 0
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