Growth of diffusion layers at liquid Al–solid Cu interface under uniform and gradient high magnetic field conditions
Growth of diffusion layers at liquid Al–solid Cu interface under uniform and gradient high magnetic field conditions
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DOI：
10.1016/j.matchemphys.2009.06.041
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发表时间：
2009-10
影响因子：
4.6
通讯作者：
Donggang Li;Qiang Wang;Tie Liu;Guojian Li;Jicheng He
中科院分区：
文献类型：
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作者：
Donggang Li;Qiang Wang;Tie Liu;Guojian Li;Jicheng He
在973K温度下，实验研究了强磁场对液/固（Al/Cu）偶联界面反应扩散的影响。在任何磁场条件下，界面均可形成由δ、ξ2、η2和θ相组成的复合层。磁通密度B对扩散层的生长有非单调的影响。此外，在外加磁场作用下，平行于B的扩散层的平均厚度总是大于垂直于B的扩散层的平均厚度。这些现象应归因于均匀高磁场下两种类型的洛伦兹力对扩散行为的影响。此外，磁场梯度对金属间相的生长有一定的抑制作用。
The effect of high magnetic fields on interfacial reactive diffusion in liquid/solid (Al/Cu) couples was experimentally investigated at a temperature of 973K. Regardless of any magnetic field, compound layers consisting of the δ, ξ2, η2and θ phases were produced at the interface. The magnetic flux density, B, exerted a non-monotonic influence on the growth of the diffusion layers. Moreover, the mean thickness of the diffusion layers (parallel to B) was found to be always greater than that of the diffusion layers (perpendicular to B) under the applied magnetic fields. These phenomena should be attributed to the effects of two types of the Lorentz force under a uniform high magnetic field on diffusion behavior. In addition, the growth of intermetallic phases could be retarded by a magnetic field gradient due to the magnetic force in the axial direction.