MAGNETIC MATERIAL AND PRODUCT MADE OF IT Russian patent published in 2009 - IPC H01F1/57 B82B1/00 

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 %: (Pr_1-x1-x2-x3 R¹ _x1 R² _x2 Gd_x3)_11,5-16 (Fe_1-y1 Co_y1)_res. B_6-10, 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 %: (Pr_1-x1-x2-x3 R¹ _x1 R² _x2 Gd_x3)_11.5-16 (Fe_1-y1 Co_y1)_res. T_y2 B_6-10, 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