| 简介 |
PROBLEM TO BE SOLVED : To improve the bulk density of an iron-based permanent magnet. SOLUTION : A molten alloy expressed by the compositional formula of (Fe1-m Tm )100-x-y-z Qx Ry Mz ( where, T, Q, and R respectively denote one or more kinds of elements selected from among a group composed of Co and Ni, one or more kinds of elements selected from among a group composed of B and C, and one or more kinds of rare-earth metal elements substantially containing no La and Ce, M denotes a metal element selected from among a group composed of Ti, Zr, and Hf, and 10
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