Reexaminations of the effects of magnetic field on the nucleation of undercooled Cu melt

Wang Jun; He Yixuan; Li Jinshan; Kou Hongchao; Beaugnon Eric

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Reexaminations of the effects of magnetic field on the nucleation of undercooled Cu melt

机译：重新检查磁场对过冷铜熔体成核的影响

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The effect of a high static magnetic field on the nucleation of an undercooled Cu melt has been investigated using a glass slag fluxing technique in a 12 Tsuperconductor magnet. Controlled heating cycles with and without a magnetic field are performed and the results indicate that the magnetic field has no single effect on the mean undercooling of undercooled Cu liquid, which is different from previous reports. The high static magnetic field can enhance the undercooling of Cu at first, and the effect is weakened with increasing number of heating cycles. The undercooling of undercooled Cu is saturated at around 250K regardless of the magnetic field after a certain number of heating cycles. The effects are interpreted on the basis of the thermodynamic and magnetohydrodynamic effects of the magnetic field on the undercooled melt and the heterogeneous nucleation theory. (C) 2016 The Japan Society of Applied Physics

机译：使用玻璃渣通量技术在12 T超导体磁体中研究了高静磁场对过冷Cu熔体成核的影响。进行了有磁场和无磁场的受控加热循环，结果表明，磁场对过冷铜液的平均过冷度没有单一影响，这与以前的报道不同。高静磁场首先可以增强Cu的过冷度，并且随着加热循环次数的增加，其效果会减弱。在一定次数的加热循环后，过冷的Cu的过冷却在250K左右达到饱和。这些影响是根据磁场对过冷熔体的热力学和磁流体力学效应以及非均相成核理论来解释的。（C）2016年日本应用物理学会

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《Japanese journal of applied physics》 |2016年第10期|105601.1-105601.3|共3页
作者
Wang Jun; He Yixuan; Li Jinshan; Kou Hongchao; Beaugnon Eric;
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Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China;

Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China;

Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China;

Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China;

Univ Grenoble Alps, LNCMI, F-38000 Grenoble, France|CNRS, LNCMI, F-38000 Grenoble, France;

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Reexaminations of the effects of magnetic field on the nucleation of undercooled Cu melt

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