Effect of annealing on the microstructure of sintered Nd-Fe-B magnets
- 15 March 1986
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 59 (6) , 2244-2246
- https://doi.org/10.1063/1.336366
Abstract
A transmission electron microscopy study of sintered Nd-Fe-B magnets after annealing above 650 °C shows the formation of a thin intergranular Nd-rich layer extending to pockets of polycrystalline fcc Nd crystals. The grain boundary phase acts as a pinning site for the magnetic domain walls and is necessary for good magnetic hardening. On the other hand, the Nd1+εFe4B4 phase is an unavoidable product of the sintering process but need not be present for good coercivity.This publication has 11 references indexed in Scilit:
- Iron-based rare-earth magnets (invited)Journal of Applied Physics, 1985
- Magnetic hardening in iron-neodymium-boron permanent magnetsJournal of Applied Physics, 1985
- Hot-pressed neodymium-iron-boron magnetsApplied Physics Letters, 1985
- High Resolution Electron Microscopy of Grain Boundaries in Sintered Fe77Nd15B8 Permanent MagnetsJapanese Journal of Applied Physics, 1985
- Permanent magnet materials based on the rare earth-iron-boron tetragonal compoundsIEEE Transactions on Magnetics, 1984
- The metallurgy of the iron-neodymium-boron permanent magnet systemMaterials Letters, 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
- Rapidly quenched metals for permanent magnet materials (invited)Journal of Applied Physics, 1984