| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the quantity of heavy rare earth elements to be consumed while keeping the coercive force of the conventional series to which the heavy rare earth elements are added. <P>SOLUTION: The rare earth alloy has a composition consisting of, by atom, 11 to 18% R (R is at least one rare earth element selected from rare earth elements including Y), 5 to 12% Q (Q is boron or a mixture of boron and carbon), >0 to <6% M (M is at least either of V and Mo) and the balance T (T is Fe or a mixture of Fe and at least one transition metal element other than Fe) with trace additive elements added if necessary and impurities. Further, this alloy has a primary phase with an R<SB>2</SB>Fe<SB>14</SB>B type crystal structure, and M is allowed to enter into solid solution in the primary phase into supersaturated state. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
