Permanent magnet material

Abstract

Abstract PURPOSE:To obtain a permanent magnet material with high coercive force and a high energy product by substituting Fe for a specified amount of Co in a composition consisting of specified percentages of a rare earth metal, Cu, Zr, Nb, V and Co. CONSTITUTION:Fe is substituted for 6-23% of Co in a composition consisting of, by weight, 24-28% rare earth metal, 5-10% Cu, 0.2-5% in total of Zr+Nb, Zr+V or Zr+Nb+V and 57-70.8% Co. Sm, Y, La, Ce, Pr, Nd, Eu, Ga, Tb, Dy, Ho, Er, Tm, Yb or Lu is used as the rare earth metal. Thus, the reduction of the Br and coercive force is prevented, and a permanent magnet material with a high energy product is obtd.

Inventors

• 👤 Tetsuto Yoneyama
• 👤 米山　哲人
• 👤 Shiro Tomizawa
• 👤 史郎 富沢
• 👤 Tetsuo Hori
• 👤 堀　撤男
• 👤 Teruhiko Oshima
• 👤 尾島　輝彦

Bibliographic Details