Undercooling and rapid solidification of Cu84Co16 alloys under a static magnetic field
Undercooling and rapid solidification of Cu84Co16 alloys under a static magnetic field
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静磁场下Cu84Co16合金的过冷和快速凝固
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
J.C. He
中科院分区：
文献类型：
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作者：
Junbin Gao;Yk Zhang;T. Fukuda;H. Yasuda;M. Kolbe;J.C. He
在2 t的静磁场下，采用电磁悬浮技术对Cu84Co16组份样品进行过冷快速凝固，过冷液中亚稳相分离形成液滴状微观结构。少量富co相的液滴尺寸分布呈单态分布，不同于无静磁场悬浮样品的双峰分布。这种磁场效应与抛物线飞行的重力减小效应相似。
Bulk samples of Cu84Co16 composition were undercooled and rapidly solidified using the electromagnetic levitation technique under a static magnetic field of 2 T. A droplet-shaped microstructure was frozen in due to metastable phase separation in the undercooled liquid. A singular droplet size distribution was determined for the minority Co-rich phase, which differed from a bimodal one observed in the samples levitated without the static magnetic field. Such an effect of the magnetic field was found to be similar to that of reduced gravity of parabolic flights.