Behavior of a Heat-Protective Material Based on Al2O3 and SiO2 Fibers under Exposure to Concentrated Solar Energy Flux

The paper presents the results of testing a heat-protective material based on Al 2 O 3 and SiO 2 fibers under exposure to a concentrated solar energy flux and highly non-uniform thermal and light field conditions. Avariation in the material structure and morphology depending on the heat treatment te...

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Bibliographic Details
Published in:Refractories and industrial ceramics 2021-03, Vol.61 (6), p.675-679
Main Authors: Suleimanov, S. Kh, Babashov, V. G., Dzhanklich, M. U., Dyskin, V. G., Daskovskii, M. I., Skripachev, S. Yu, Kulagina, N. A., Arushanov, G. M.
Format: Article
Language:English
Subjects:
Aluminum oxide
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Exposure
Glass
Heat treatment
Materials Science
Melting points
Morphology
Mullite
Natural Materials
Silicon dioxide
Solar energy
Thermal insulation
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Summary:The paper presents the results of testing a heat-protective material based on Al 2 O 3 and SiO 2 fibers under exposure to a concentrated solar energy flux and highly non-uniform thermal and light field conditions. Avariation in the material structure and morphology depending on the heat treatment temperature is shown. The material retains its properties during extended exposure to temperatures of 1,600 – 1,700°C due to the formation of a stable mullite and α-Al 2 O 3 structure. Above the mullite melting point (~1,840°C), the material undergoes deformation and melting, and loses its physical, mechanical, and thermal insulation properties.
ISSN:1083-4877
1573-9139
DOI:10.1007/s11148-021-00541-4