Title:
PERMANENT MAGNET MATERIAL
Document Type and Number:
Japanese Patent JPS5845346
Kind Code:
A
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 6W23% of Co in a composition consisting of, by weight, 24W28% rare earth metal, 5W10% Cu, 0.2W5% in total of Zr+Nb, Zr+V or Zr+Nb+V and 57W70.8% 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:
YONEYAMA TETSUTO
TOMIZAWA SHIROU
HORI TETSUO
OSHIMA TERUHIKO
TOMIZAWA SHIROU
HORI TETSUO
OSHIMA TERUHIKO
Application Number:
JP12548182A
Publication Date:
March 16, 1983
Filing Date:
July 19, 1982
Export Citation:
Assignee:
TDK ELECTRONICS CO LTD
International Classes:
C22C19/07; H01F1/04; H01F1/053; (IPC1-7): C22C19/07; H01F1/04
Attorney, Agent or Firm:
Youichi Ishii
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