Materials Reports  2020, Vol. 34 Issue (Z1): 137-139 |
| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Research on Preparation and Properties of Carbonate-based Constant-Solid-StatedComposite Phase Change Materials |
| WANG Qiyang, YANG Bo
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| NARI Group Corporation (State Grid Electric Power Research Institute), Nanjing 211100, China |
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Abstract The carbonate-based constant-solid-stated composite phase change materials were prepared by mixed sintering process, the effects of addition ratio of carbonate and nano-adsorbent on the cyclic density of the composites were studied.The results show that the optimal ratio of carbonate and nano-adsorbent is 6∶1.6(mass ratio). The thermal cycle experiment indicates that the composites'density with different ratios tend to be stable after 5 cycles. The effects of different thermal conductive materials on the thermal conductivity of the composites were also investigated. We find that although graphite could greatly improve the thermal conductivity of the composites, the oxidation of graphite in the high-temperature cycle is difficult to control. Silicon carbide, on the other hand, can guarantee the long-term stability of the system, although the thermal conductivity is slightly lower.
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Published: 01 July 2020
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| Fund:This work was financially supported by the National Key Research and Development Program of China (2018YFB0905000). |
| About author:: Qiyang Wang obtained his M.E. degree in materials science and engineering from the Wuhan University of Technology in 2013. Now, he works at the NARI Group Corporation (State Grid Electric Power Research Institute). His research interests focus on the solar energy optic-thermal composite utilization, and advanced energy-storage. He has obtained 3 authorized national invention patents and published 5 articles. |
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