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25 April 2023 Study on microstructure of high temperature composite phase change heat storage materials
Liang Chang, GaoQun Zhang, Hui Tan, ZhanFeng Deng, GuiZhi Xu
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Proceedings Volume 12598, Eighth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2022); 125980J (2023) https://doi.org/10.1117/12.2673164
Event: Eighth International Conference on Energy Materials and Electrical Engineering (ICMEE 2022), 2022, Guangzhou, China
Abstract
The phase change heat storage technology with high temperature phase change heat storage materials as the heat storage medium is an efficient heat storage technology, which can play an important role in clean energy consumption, clean heating and so on. In this paper, the effects of several sintering additives on the microstructure angle of high temperature composite phase change heat storage materials were experimentally studied and characterized. The role of sintering additives such as lead, bismuth oxide and barium carbonate in the sintering process of composite phase change heat storage materials was analyzed by means of mechanical strength test and SEM. The results show that lead is conducive to the melting and surface wetting of magnesium oxide particles, and barium carbonate promotes the formation of sodium carbonate strip crystals to a certain extent, so as to improve the bonding strength of the material after sintering. Sodium silicate mainly plays the role of bonding, reducing the dispersion of components outside the pores and making the structure of the composite more complete.
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Liang Chang, GaoQun Zhang, Hui Tan, ZhanFeng Deng, and GuiZhi Xu "Study on microstructure of high temperature composite phase change heat storage materials", Proc. SPIE 12598, Eighth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2022), 125980J (25 April 2023); https://doi.org/10.1117/12.2673164
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KEYWORDS
Composites
Sintering
Sodium
Solar energy
Scanning electron microscopy
Lead
Particles
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