Changes in the structure of oxide ceramic fibers when exposed to high temperature heats

Stepanova E.V., Maximov V.G., Ivakhnenko Yu.A.
UDC
677.523
DOI
10.18577/2307-6046-2022-0-4- 42-51
Article PDF (Russian) (886.24 KB)
How to cite
Stepanova E.V., Maximov V.G., Ivakhnenko Yu.A. Changes in the structure of oxide ceramic fibers when exposed to high temperature heats // Proceedings of VIAM. 2022. No. 4. DOI: 10.18577/2307-6046-2022-0-4- 42-51. URL: https://test.viam.ru/en/journal/2022/4/5
Keywords
oxide ceramic fibers, structure, sol-gel method, temperature, optical microscopy, recrystallization
Abstract

Using the method of transmission optical microscopy in polarized light, changes in the internal structure of various oxide ceramic fibers under the influence of high-temperature heats were investigated. Complete restructuring of the structure of all examined fibers in the process of high-temperature exposure was revealed. Significant differences were established during recrystallization between fibers of different types. Mullite compositions showed stabilization of the recrystallization structure at the stage of formation of moderately large grains separated by stable large-angle (up to 90°) borders.

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