| 简介 |
PROBLEM TO BE SOLVED : To provide a nanocomposite magnet with excellent magnetic property satisfying the remnant flux density Br≥0.8 T while maintaining high intrinsic coercive force (for example HcJ≥550 kA/m). SOLUTION : The magnet has the composition represented by the composition formula : (Fe1-mTm)100-x-y-z-nQxRyTizMn(wherein T is at least one kind of element selected from the group consisting of Co and Ni, Q is at least one kind of element selected from the group consisting of B and C, R is at least one kind of rare-earth element selected from the group consisting of Nd, Pr, Dy and Tb and contains at least one kind of rare-earth element selected from the group consisting of Nd and Pr, and M is at least one kind of element selected from the group consisting of Al, Si, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb, provided that the formulae are satisfied : 10COPYRIGHT : (C)2003, JPO |
客服热线：
手机版
二维码
