| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention relates to powder metallurgy field, particularly to magnetic materials for permanent magnets on the basis of rare-earth elements with metals of iron group. Material contains iron (Fe), cobalt (Co), boron (B), praseodymium (Pr), gadolinium (Gd), at least one element selected from group terbium (Tb), dysprosium (Dy), and at least one element selected from group samarium (Sm), neodymium (Nd), cerium (Ce), at accordance of chemical composition to formula, wt %: (Pr1-x1-x2-x3 R1Çèx1 R2Çèx2 Gdx3)11,5-16 (Fe1-y1 Coy1)res. B6-10, where R1 - at least one element selected from group Tb, Dy, R2 - at least one element selected from group Sm, Nd, Ce, x1=0.40 - 0.7, x2+x3=0.001 - 0.25, y1=0.2 - 0.43. Material can additionally contain at least one element selected from group aluminium (Al), gallium (Ga), titanium (Ti), niobium (Nb), molybdenum (Mo), copper (Cu), at accordance of chemical composition to formula, wt %: (Pr1-x1-x2-x3 R1Çèx1 R2Çèx2 Gdx3)11.5-16 (Fe1-y1 Coy1)res. Ty2 B6-10, where T - at least one element selected from group Al, Ga, Ti, Nb, Mo, Cu, y2=0.001-1. ^ EFFECT: it is increased value of residual magnetic induction of material in the range of temperature induction coefficient TIC=+0,01 -0,01%/C. ^ 3 cl, 1 tbl, 1 ex |
