| Title |
The Effect of Hot - Pressing on the Magnetic properties for R - Fe - B Alloy (3) ( A Study on the Anisotropy for R - Fe - B Permanent Magnet Prepared by Hot - Pressing ) |
| Authors |
김동엽(D . Y . Kim); 정원용(W . Y . Jeung); 강일구(I . K . Kang); 오재현(J . H . Oh) |
| Abstract |
The anisotropy of R(R=Pr, Nd)-Fe-B-Cu magnets prepared by hot-pressing was investigated. For that purpose, anisotropy factor(f_a)was introduced. Also, the effects of thickness reduction ratio, working temperatures and heat treatment on the magnetic properties for R-Fe-B-Cu magnets were studied. Induced anisotropy parallel to press direction by hot-pressing was confimed through the variation of magnetic properties and domain patterns of R-Fe-B-Cu magnets. Anisotropy factors were increased according to the increment of thickness reduction and working temperature. But heat treatment of the R-Fe-B-Cu magnets had no relation with anisotropy factors. Irregularities and swelling of the specimen during the pressing were alluded. |