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Fe-shell/Cu-core encapsulated metallic phase change materials prepared by aerodynamic levitation method
Alternative TitleAppl. Energy
Ma, Bingqian1,2; Li, Jianqiang1; Xu, Zhe1; Peng, Zhijian2
2014-11-01
Source PublicationAPPLIED ENERGY
ISSN0306-2619
Volume132Issue:NOV.Pages:568-574
AbstractApplication 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. (c) 2014 Elsevier Ltd. All rights reserved.; 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. (c) 2014 Elsevier Ltd. All rights reserved.
KeywordMetallic Phase Change Materials Fe-cu Immiscible Alloys Aerodynamic Levitation
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.apenergy.2014.07.054
URL查看原文
Indexed BySCI
Language英语
WOS KeywordMISCIBILITY GAP ; STORAGE MATERIALS ; ALLOYS ; IRON ; MICROSTRUCTURE ; CONDUCTIVITY ; TEMPERATURES ; MORPHOLOGIES ; CORROSION ; ENERGY
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
WOS IDWOS:000342247400054
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11650
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.China Univ Geosci, Sch Engn & Technol, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Ma, Bingqian,Li, Jianqiang,Xu, Zhe,et al. Fe-shell/Cu-core encapsulated metallic phase change materials prepared by aerodynamic levitation method[J]. APPLIED ENERGY,2014,132(NOV.):568-574.
APA Ma, Bingqian,Li, Jianqiang,Xu, Zhe,&Peng, Zhijian.(2014).Fe-shell/Cu-core encapsulated metallic phase change materials prepared by aerodynamic levitation method.APPLIED ENERGY,132(NOV.),568-574.
MLA Ma, Bingqian,et al."Fe-shell/Cu-core encapsulated metallic phase change materials prepared by aerodynamic levitation method".APPLIED ENERGY 132.NOV.(2014):568-574.
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