Magnetic Properties and Microstructure of Hot-Pressed and Hot-Deformed Nd2Fe14B/PrCo5 Hybrid Magnets
Nd2Fe14B/PrCo5 hybrid magnets were prepared by hot pressing and hot deformation with spark plasma sintering equipment,and their magnetic properties,microstructure and intergranular interaction were investigated.There are Nd2Fe14B and PrCo5 in both the hot-pressed and hot-deformed hybrid mag-nets.The anisotropy and magnetic properties of the hot-deformed magnets are significantly affected by the deformation amount.With the increase of the deformation amount,the anisotropy of the magnets increa-ses,the grains are stretched into a lath shape along the direction perpendicular to the pressure,and the co-ercivity and maximum magnetic energy product decrease monotonously.At the same time,the intergranu-lar exchange coupling of the magnets gradually weakens,and the long-range magnetostatic interaction strengthens.
Nd2Fe14B/PrCo5hybrid magnethot pressing and hot deformationmagnetic propertymicro-structureintergranular interaction
NETL
NSTL
万方数据
