Fe-shell/Cu-core encapsulated metallic phase change materials prepared by aerodynamic levitation method
Fe-shell/Cu-core encapsulated metallic phase change materials prepared by aerodynamic levitation method
复制标题
气动悬浮法制备铁壳/铜核包覆金属相变材料
DOI：
10.1016/j.apenergy.2014.07.054
复制
发表时间：
2014-11
期刊：
影响因子：
11.2
通讯作者：
Peng, Zhijian
中科院分区：
文献类型：
--
作者：
Ma, Bingqian;Li, Jianqiang;Xu, Zhe;Peng, Zhijian
由于缺乏适当的封装技术，金属相变材料（PCM）在潜热存储系统中的应用受到限制。与其他相变材料相比，金属相变材料通常具有极高的导热率、高能量密度和高相变温度。作为最好的金属相变材料候选之一，本工作通过空气动力悬浮方法制备了具有典型铁壳/铜核结构的铜基封装金属相变材料（EM-PCM），为封装问题提供了解决方案。 Cu基EM-PCMs是基于过冷Fe-Cu不混溶合金的液相分离现象形成的。结果表明，Fe-Cu合金的形貌演化可归因于两种不混溶液体的液相分数、液滴的Stokes和Marangoni速度以及合金样品在凝固过程中的旋转方向的综合影响。这种 EM-PCM 呈近球形，直径约为 2 mm，表面涂覆有氧化铁层，可提高 EM-PCM 的耐磨性。
Application of metallic phase change materials (PCMs) in latent heat storage systems has been limited by the absence of appropriate packaging technology. Compared to other PCMs, metallic PCMs generally possess extremely high thermal conductivity, high energy density and high phase change temperature. As one of the best metallic PCM candidates, Cu-based encapsulated metallic phase change materials (EM-PCMs) with a typical Fe–shell/Cu-core structure have been prepared by an aerodynamic levitation method in this work, which provided a solution to the packaging issue. Cu-based EM-PCMs were formed based on the liquid phase separation phenomenon of undercooled Fe–Cu immiscible alloys. Results show that the morphology evolution of Fe–Cu alloys could be attributed to the combined effects of liquid phase fraction of the two immiscible liquids, Stokes and Marangoni velocities of droplets, and the rotation direction of the alloy samples during solidification. This kind of EM-PCM is nearly spherical with a diameter of about 2 mm and coated by an iron oxide layer which can improve the wear resistance of EM-PCMs.
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影响因子：
2.2
作者：
G. Wille;F. Millot;J. Rifflet
通讯作者：
G. Wille;F. Millot;J. Rifflet
影响因子：
6.3
作者：
J. Yagi;T. Akiyama
通讯作者：
J. Yagi;T. Akiyama
DOI：
10.1016/c2009-0-25363-3
发表时间：
2016
期刊：
--
影响因子：
--
作者：
Franziska Frankfurter
通讯作者：
Franziska Frankfurter
影响因子：
56.9
作者：
Wang, CP;Liu, XJ;Ishida, K
通讯作者：
Ishida, K
影响因子：
11.2
作者：
Antonio Ramos Archibold;J. González-Aguilar;M. M. Rahman-M.;D. Goswami;M. Romero;E. Stefanakos
通讯作者：
Antonio Ramos Archibold;J. González-Aguilar;M. M. Rahman-M.;D. Goswami;M. Romero;E. Stefanakos