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ni-sn金属间化合物纳米粒子的制备和热稳定性

Keywords: 金属材料,ni-sn纳米粒子,直流电弧放电法

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Abstract:

?采用直流电弧放电法制备ni-sn纳米粒子,研究了纳米粒子的结构、成份、形貌和热稳定性.结果表明,sn比ni蒸发得快是纳米粒子的成份与原料明显偏差的主要原因.由于非平衡反应和极短的反应时间,得到的是含有ni_3sn_4的多相混合物.与低熔点的sn纳米粒子比较,ni-sn金属间化合物纳米粒子在725k左右氧化缓慢,具有良好的热稳定性.

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