Hard magnetic materials and method of producing the same
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United States of America Patent
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Dec 21, 1999
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N/A
app pub date -
Sep 20, 1996
filing date -
Sep 22, 1995
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Abstract
Hard magnetic materials of the present invention contain at least one element of Fe, Co and Ni as a main component, at least one element M of Zr, Nb, Ta and Hf, at least one rare earth element R and B. The texture of the materials has at least 70% of fine crystalline phase having an average grain size of 100 nm or less, and the residue having an amorphous phase, the fine crystalline phase mainly composed of bcc-Fe or bcc-Fe compound, Fe--B compound and/or R.sub.2 Fe.sub.14 B.sub.1.
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