Diffusion in liquid metals
Diffusion in liquid metals
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DOI：
10.1360/132012-100
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发表时间：
2012-05
期刊：
影响因子：
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通讯作者：
Chunao Zhu;Y. Geng;Bo Zhang
中科院分区：
文献类型：
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作者：
Chunao Zhu;Y. Geng;Bo Zhang
液态金属中的扩散作为材料设计的关键参数在材料工程中具有重要意义，也是凝聚态物理中输运性质研究的一个长期课题。由于实验上的困难，在过去的几十年里，很少有重大进展的报道。在国内，无论是实验研究还是理论研究都非常少。通过介绍最新的扩散测量技术，包括原位X射线照相法和中子散射法，系统地介绍了当前的熔体扩散测量技术，以及在地面和空间微重力条件下的实验结果。对有关扩散机制的理论模型也作了简要说明。最后指出了金属液相扩散研究中存在的问题和发展前景.
Diffusion in liquid metals is significant in materials engineering as a key parameters for materials design, and also a long standing topic in the study of transport properties in condensed matter physics. Due to experimental difficulties, few great progresses have been reported in the past several decades. In China, both experimental and theoretical researches are very rare. By introducing the latest diffusion measuring techniques including the in-situ X-ray radiography and neutron scattering methods, we systematically describes the current melt diffusion measurement techniques, and the experimental results obtained on the ground and under the microgravity conditions in space. The theoretical models concerning the diffusion mechanisms are also explained briefly. Finally, we point out the problems and prospective future in the field of metallic liquid diffusion.