RARE EARTH PERMANENT MAGNETIC MATERIAL AND METHOD OF PREPARING THE SAME

文件类型：PDF文档
文件大小：1423K
A rare earth permanent magnetic material contains a main phase of R1x1R2y1Fe1-x1-y1-z1-u1Coz1Bu1, and an auxiliary phase including a first auxiliary phase of R3x2R4y2Fe1-x2-y2-z2-u2-v1Coz2Bu2Mv1and a second auxiliary of R5x3R6y3Fe1-x3-y3-z3-u3-v2Coz3Bu3Mv2. Each of R1, R3 and R5 is Pr and/or Nd. Each of R2, R4 and R6 is at least one of Dy, Tb and Ho. M is at least one of Zr, Ga, Cu, Nb, Sn, Mo, Al, V, W, Si, Hf, Ti, Zn, Bi, Ta and In. 26wt％≤x1+y1≤34wt％, 0.01wt％≤y1≤4wt％, 0≤z1≤6wt％, and 0.78wt％≤u1≤1.25wt％. 35wt％≤x2+y2≤82wt％, 5wt％≤y2≤42wt％, 0≤z2≤40wt％, 0≤u2≤1.25wt％, and 0≤v1≤10wt％. 10wt％≤x3+y3≤32wt％, 0≤y3≤4.8wt％, 0≤z3≤40wt％, 0≤u3≤1.25wt％, and 31wt％≤v2≤50wt％.