| 简介 |
[Problem]Sm is selected as a rare earth element, and it is a magnetic material having a phase having a ThMn12 type crystal structure, and provides a magnetic material with improved magnetic properties, especially coercive force, and a method for producing it thereof. Solution : Formula at molar ratio (Sm (1-x-y)RyZrx)a(Fe(1-z)Coz)bTcMd (In the formula, R is a predetermined rare earth element other than Sm, T and M are predetermined elements, and 0< x ≦0. 3、0≦y≦0． 1、0≦z≦0． 3、7． 7≦a≦9． 8、b＝100－a－c－d、3． 8＜c≦7． 7, and 0≦ d≦1. A magnetic material and a method for producing thereof having a total composition represented by 0) and a phase having a T Mn12 type crystal structure and a phase having a substantially TbCu7 type crystal structure. [Selection Figure]Figure 6 |
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