Results of studies of Al2O3 suspensions made with different CaO and SrO contents are presented. The pH level increased with an increase in the content of CaO and SrO in the Al2O3 suspensions. The dynamic viscosity of the Al2O3 suspensions grew exponentially as the CaO content increased from 0.45 to 2.25 mol% and SrO, from 0.42 to 2.14 mol%. Reflections of CaAl12O19 and SrAl12O19 were observed in sintered materials of suspensions to which CaO and SrO, respectively, were introduced. These compounds had a lamellar structure.
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The research was supported by the Russian Science Foundation, Grant No. 21-79-00306; https://rscf.ru/project/21-79-00306/. The research was performed using equipment at the CUC Structure and Mechanical and Physical Properties of Materials at NSTU.
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Translated from Novye Ogneupory, No. 6, pp. 17 – 20, June, 2022.
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Cherkasova, N.Y., Kuz’min, R.I., Antropova, K.A. et al. Rheological Characteristics of Suspensions and Structure of Al2O3–CaO and Al2O3–SrO Composites. Refract Ind Ceram 63, 311–314 (2022). https://doi.org/10.1007/s11148-022-00727-4
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DOI: https://doi.org/10.1007/s11148-022-00727-4