强激光与粒子束, 2012, 24 (1): 229, 网络出版: 2012-02-14
Ni-Nd-B合金的性能研究
Properties research of Ni-Nd-B alloys
Ni基非晶 电弧熔炼 稀土过渡金属间化合物 磁性材料 过冷度 Ni-based amorphous material arc melting rare earth-transition metal compound magnetic materials undercooling temperature
摘要
采用电弧式熔体快淬/吸铸技术, 制备了不同成分的Ni-Nd-B试样, 借助X射线衍射、扫描电子显微镜、热分析法、静态磁性测试仪等手段进行了分析。研究发现, 用电弧式熔体快淬/吸铸技术可以较成功制备系列直径6 mm的Ni-Nd-B大块非晶, 且满足深度共晶成分试样表, 表现出较理想的非晶形成能力。Ni4NdB材料具有约79.13 ℃的过冷度, Ni13Nd3B2材料具有约69.37 ℃的过冷度；Ni, Nd成分微量变化引起材料较明显的晶化趋向。此外, Ni, Nd成分微量变化导致材料矫顽力、饱和磁化强度减小。
Abstract
Ni-Nd-B samples were prepared by arc-type melt-spinning/suction casting techniques, and then were analyzed by X-ray diffraction, scanning electron microscopy and differential thermal analyses and with static magnetic tester. The results show that 6 mm-diameter bulk amorphous samples have been prepared, which conform with the depth eutectic theory and show relatively ideal glass forming ability. The undercooling temperatures of Ni4NdB and Ni13Nd3B2 are 79.13 ℃ and 69.37 ℃, respectively. The trace changes of Ni, Nd compositions cause evident crystallization of materials, and they also lead to the decrease in material coercivity and saturation magnetization.
高存梅, 丁志杰, 唐永建, 杜凯, 易勇. Ni-Nd-B合金的性能研究[J]. 强激光与粒子束, 2012, 24(1): 229. Gao Cunmei, Ding Zhijie, Tang Yongjian, Du Kai, Yi Yong. Properties research of Ni-Nd-B alloys[J]. High Power Laser and Particle Beams, 2012, 24(1): 229.
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