董伟

个人信息Personal Information

副教授

博士生导师

硕士生导师

性别:男

毕业院校:日本东北大学

学位:博士

所在单位:材料科学与工程学院

电子邮箱:w-dong@dlut.edu.cn

扫描关注

论文成果

当前位置: 中文主页 >> 科学研究 >> 论文成果

One step fabrication of core-shell structures in immiscible alloys for thermal energy storage

点击次数:

论文类型:会议论文

发表时间:2014-04-18

收录刊物:EI、Scopus

卷号:983

页面范围:131-134

摘要:The microscopic morphologies of Bi30Ga70 immiscible alloy particles were investigated. Monosized microparticles with similar core-shell structures were fabricated for the first time by one step using the Pulsated Orifice Ejection Method. The EDS revels that the core and the shell consist of a Ga-rich phase (>90 at. %) and a Bi-rich phase (>80 at. %), respectively. The DSC testing at different temperatures is performed. Core-shell microstructures as well as endothermic peaks and exothermic peaks are observed after heating-cooling cycles when the working temperature is below the temperature of spinodal line, indicating good thermal stability after phase transformation. The thermal energy storage was preliminary tested, which is a good attempt for thermal energy storage. It is likely to use core-shell structures as microencapsulated phase change materials. ? (2014) Trans Tech Publications, Switzerland.