Materials Reports 2020, Vol. 34 Issue (Z1): 128-131 |
INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
|
|
|
|
|
Preparation and Technology of Ceramic-based Composite Phase ChangeMaterials by In-situ Reaction |
YANG Bo, WANG Qiyang, YANG Xiao, YANG Dongmei
|
NARI Group Corporation (State Grid Electric Power Research Institute), Nanjing 211100, China |
|
|
Abstract In order to solve the problem of difficult forming and low heat conduction of molten salt phase change materials, a method of in-situ reaction of micron aluminum nitride was designed to fabricate ceramic-based thermal conduction framework, which can absorb molten salt and form the ceramic-based composite phase change materials (CPCMs). The effects of water content and forming pressure on the properties of CPCMs were studied, which shows the optimum water addition of 15%, the best molding pressure of 30 MPa. Hydrolytic alumina (h-Al2O3) formed by in-situ reaction is found a flower like structure in SEM photos, which can absorb composite salts and maintain the structure without collapse. TG-DSC and thermal conductivity tests illustrate that the CPCMs have a 182.4 J/g phase change enthalpy and a 4.928 W/(m·K) thermal conductivity. After 50 cycles, there is almost no attenuation on the enthalpy of CPCMs, which possess good cycle stability. Their excellent properties are attri-buted to the ceramic-based thermal conduction framework formed by in-situ reaction.
|
Published: 01 July 2020
|
|
Fund:This work was financially supported by the National Key Research and Development Project (2018YFB0905000). |
About author:: Bo Yang was an engineer who received his master degree in materials. He participated in the research work of National Key R & ; D Project, National Natural Science Foundation, Science and Technology Project of State Grid Corporation of China, etc. As the first author, he published 8 papers in domestic and foreign academic journals and applied for more than 10 patents, including 3 authorized ones. At present, he works in the Research Institute of NARI Group Co., Ltd. and focuses on the research of phase change heat storage mechanism and the development of high-performance phase change heat storage materials. |
|
|
1 Liu X, Jenkins N, Wu J, et al. Energy Procedia,2014,61,155. 2 Wei H, Xie X, Li X, et al. Applied Energy,2016,178,616. 3 Qiu Z, Ma X, Li P, et al. Renewable & Sustainable Energy Reviews,2017,77,246. 4 Da Cunha J P, Eames P. Applied Energy,2016,177,227. 5 Lameck N, Tunde B, Geoffrey J, et al. Renewable & Sustainable Energy Reviews,2017,75,157. 6 Lin Y X, Zhu C Q, Alva G, et al. Applied Energy,2018,228,1801. 7 Liu C, Li F, Ma L P, et al. Advanced Materials,2010,22(8),E28. 8 Sharma A, Tyagi V V, Chen C R, et al. Renewable & Sustainable Energy Reviews,2009,13(2),318. 9 Fang Y T, Zou T, Liang X H, et al. ACS Sustainable Chemistry & Engineering,2017,5(4),3074. 10 Ge Z, Li Y, Li D, et al. Particuology,2014,15,2. 11 Kourkova L, Sadovska G. Thermochimica Acta,2007,452(1),80. 12 Wu Y T, Ren N, Wang T, et al. Solar Energy,2011,85(9),1957. 13 Ren N, Wu Y T, Wang T, et al. Journal of Thermal Analysis and Calorimetry,2011,104(3),1201. 14 Guillot S, Faik A, Rakhmatullin A, et al. Applied Energy,2012,94,174. 15 Wu Z, Zhao C, Gu Q. CIESC Journal,2012,63,119. 16 Ye F, Ge Z, Ding Y, et al. Particuology,2014,15,56. 17 Sang L, Li F, Xu Y. Solar Energy,2019,180,1. 18 李传,李琦,姜竹,等.储能科学与技术,2017,6(4),655. 19 Pincemin S, Olives R, Py X, et al. Solar Energy Materials & Solar Cells,2008,92(6),603. 20 Li C, Li Q, Ding Y. Renewable Energy,2019,140,140. |
|
|
|