ISSN 1008-5548

CN 37-1316/TU

Journal Online  2017 Vol.23
<Go BackNo.3

Preparation and molding process of ceramic matrix composite phase change heat storage material

ZHANG Yelong1 , XU Yong1 , ZHAO Weijie1 , WANG Min1 , WENG Likui1 , LENG Guanghui2 , DING Yulong2

(1. Nanjing Jinhe Energy Material Co., Ltd., Nanjing 210047, China; 2. University of Birmingham, Birmingham B15 2TT, UK)

Abstract:The mixed sintering method was used to shape the ternary chlorine salt system Na Cl-KCl-MgCl2 with magnesium oxide ceramic matrix. The influence of pressing pressure, sintering temperature and salt content on the material molding were studied and the heat storage performance was tested. The experimental results show that when the preparation conditions are the 50 % salt content, sintering temperature of 450 ℃ and 8 MPa pressing pressure, the preparation effect is better. At that time the phase change material is no seepage, the composite material has a smaller volume change and a higher density. The DSC test results show that the phase transition temperature of composite phase change heat storage material is 399.8 ℃, and the phase change latent heat is 129.6 J/g.

Keywords: phase change material; ceramic matrix; molding process

中图分类号:TK02        文献标志码:A

文章编号:1008-5548(2017)03-0016-05

DOI:10.13732/j.issn.1008-5548.2017.03.003

收稿日期:2016-12-06, 修回日期:2017-02-02,在线出版时间:2017-06-28。

基金项目:江苏省科技型企业技术创新资金项目,编号:BC2015002。

第一作者简介:张叶龙(1988—),男,硕士,工程师,研究方向为储热材料及系统。E-mail:zyl1988219@163.com。

通信作者简介:丁玉龙(1962—),男,博士,教授,研究方向为储能系统及能源材料。E-mail:y.ding@bham.ac.uk。