Didymium-Fe-B sintered permanent magnets
- 15 April 1985
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 57 (8), 4146-4148
- https://doi.org/10.1063/1.334647
Abstract
Present works describe the developments the low cost R-Fe-B sintered permanent magnets. Three different didymiums are chosen for the low cost mixtures of rare-earth elements. The studied alloy compositions are Fe-(32.5–34.5)wt. %R-(1–1.6)wt. %B, where R elements are didymium (Nd-10wt. %Pr), 5Ce-didymium (Nd-15%Pr-5%Ce), and 40 Ce-didymium (Nd-10%Pr-40%Ce). The specimens were prepared by the conventional powder metallurgical techniques. The best magnetic properties obtained in this studies are Br=13.2 kG, iHc=10.2 kOe, and (BH)max=40 MGOe with the Fe-33.5% (5Ce-didymium)-1%B alloy. Temperature dependence of iHc of this alloy is almost comparable to that of the Nd-Fe-B alloys.Keywords
This publication has 4 references indexed in Scilit:
- Permanent magnet materials based on the rare earth-iron-boron tetragonal compoundsIEEE Transactions on Magnetics, 1984
- Relationships between crystal structure and magnetic properties inBPhysical Review B, 1984
- New material for permanent magnets on a base of Nd and Fe (invited)Journal of Applied Physics, 1984
- Pr-Fe and Nd-Fe-based materials: A new class of high-performance permanent magnets (invited)Journal of Applied Physics, 1984