Synthesis and Research of Mullite-Thialite Ceramics Modified with Oxides of the RO2 Type

The physicochemical and thermophysical properties and phase composition of heat-resistant ceramic materials synthesized based on the Al 2 O 3 –SiO 2 –TiO 2 system were studied. The influence of modifying additives such as R O 2 (ZrO 2 , SnO 2 , CeO 2 , and MnO 2 ) on the sintering and phase formatio...

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Bibliographic Details
Published in:Refractories and industrial ceramics 2023-07, Vol.64 (2), p.174-179
Main Authors: Popov, R. Yu, Sergievich, O. A., Kolontaeva, T. V., Bogdan, E. O., Dyatlova, E. M.
Format: Article
Language:English
Subjects:
Additives
Aluminum oxide
Ceramics
Cerium oxides
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Glass
Heat resistant materials
Manganese dioxide
Materials Science
Mullite
Natural Materials
Phase composition
Silicon dioxide
Thermophysical properties
Tin dioxide
Titanium dioxide
Water absorption
Zirconium dioxide
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Summary:The physicochemical and thermophysical properties and phase composition of heat-resistant ceramic materials synthesized based on the Al 2 O 3 –SiO 2 –TiO 2 system were studied. The influence of modifying additives such as R O 2 (ZrO 2 , SnO 2 , CeO 2 , and MnO 2 ) on the sintering and phase formation processes of ceramic materials was studied. Samples of mullite-thialite ceramics modified with SnO 2 and CeO 2 in the amounts of 5% and 7.5%, respectively, were characterized by water absorption from 0.2 to 2.2% and CLTE in the range 2.4 × 10 –6 – 3.2 × 10 –6 K –1 . The developed materials could withstand greater than 70 heating and cooling cycles and could be used to work under conditions of sudden temperature changes.
ISSN:1083-4877
1573-9139
DOI:10.1007/s11148-023-00821-1