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通过重稀土取代轻稀土 ,减少氧含量和低温长时间细晶粒液相烧结技术来制备高矫顽力烧结 Nd Fe B材料 33UH,其静态性能指标达到 Br≥ 1 1 .5 k Gs,Hcj≥ 2 5 .0 k Oe,( BH) max≥32 MGOe
The high-coercivity sintered NdFe B material 33UH was prepared by replacing rare earth with heavy rare earth, reducing the oxygen content and long-time fine-grained liquid-phase sintering at low temperature. The static performance index reached Br≥1 1 .5 kGs, Hcj≥ 2 5 .0 k Oe, (BH) max ≧ 32 MGOe