Multielement gap type permanent-magnet material and production process of magnetic powler and magnet


Application Number: 00102967
Application Date: 2000.03.10
Publication Number: 1288239
Publication Date: 2001.03.21
Priority Information: 1999/9/14 CN 99119076.9
International: H01F1/053;H01F1/08;H01F41/02
Applicant(s) Name: Beijing Univ.
Address:
Inventor(s) Name: Yang Yingchang;Cheng Beipei;Ge Senlin
Patent Agency Code: 11021
Patent Agent: wang huimin
Abstract This invention relates to a multi-element rare earth-iron gap type magnetic materials, whose general formula is: (RA1-alpha RB)X(M01-beta M beta)y Fe100-x-y-zIz; where: RA=light rare earth elements, RB=heavy rare earth elements, M=elements from IIIA, IVA, IVB, VB, VIB and VIIB of periodic table, I=elements from first period or second period, X=4-15 atomic percentage, Y=3-12 atomic percentage, z=5-20 atomic percentage, alpha=0.01-0.14, beta=0.01-0.98. This invention also relates to preph. process of high performance and anisotropic magnetic powder and magnets.