| 摘要 |
FIELD: powder metallurgy; navigation equipment and aircraft automation systems. ^ SUBSTANCE: proposed magnetic material designed for producing permanent magnets based on rare-earth element with metals of iron group has in its composition iron, cobalt, boron, and at least one element of terbium, dysprosium, holmium, erbium, thulium group, as well as cerium and gadolinium, and at least one element of samarium, lanthanum, neodymium, yttrium, and praseodymium group, formula of this chemical composition being as follow, atom percent: (Ce1 - x1 - x2- x3R1 x1 x3R2 x2GDx3)14-20(Fe1 - yCoy1)rB4 - 10, where R1 is at least one element of Tb, Dy, Ho, Er, Tm group; R2 is at least one element of Sm, La, Nd, Y, Pr group, where x1 = 0.2 - 0.5; y1 = 0.2 - 0.3, x2 and x3 are chosen considering following conditions: x1 + x2 + x3 = 0.75 - 0.99; x3/x1 >= 0.01. ^ EFFECT: enhanced residual magnetic flux density and temperature stability of material, extended range of magnet sizes. ^ 3 cl, 1 tbl, 5 ex |
