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Start Over Author "Yan, Liwen" Journal ceramics international
24 results on '"Yan, Liwen"'

24. High temperature-resistant flexible inorganic coating for aluminium silicate fiber cloth with low solar absorption ratio and high emissivity.

Author

Xue, Yunjia, Huang, Zhe, Yang, Xukun, Zhao, Jinfeng, Zhang, Hengrui, Zhang, Guanglu, Guo, Anran, Yan, Liwen, Hou, Feng, and Liu, Jiachen

Subjects
*ALUMINUM silicates, *SILICATE fibers, *EMISSIVITY, *PHASE transitions, *SURFACE coatings, *HEAT treatment, *FIBERS
Abstract

To prepare a coating with a high emissivity and low solar absorption ratio on the surface of aluminum silicate fiber cloth, the sol-gel method was used with silica sol as a binder. In this study, the effects of two white fillers, titanium oxide and zirconia, on the substrate and radiation properties of coatings were compared after heat treatment at 800–1200 °C. The ZrO 2 -based coating had good stability after heat treatment at 800–1200 °C, and maintained its white color, exhibiting solar absorption ratio of approximately 0.14 and emissivity of 0.84. ZrO 2 -based coatings prevented harmful cracking, as observed for the TiO 2 -based coatings after heat treatment, because of the ZrO 2 phase transformation. The ZrO 2 -based coating did not have strong bonding with the substrate, and the substrate strength was improved by maintaining a weak bonding interface. Compared with the TiO 2 -based coatings, which exhibit reduced substrate strength above 1000 °C, the ZrO 2 -based coating was more suitable for the surface of flexible fiber cloths as a temperature-resistant coating with good development prospects. [ABSTRACT FROM AUTHOR]

Published
2023
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