Tetragonal solid solutions based on the TiO2–CeO2–ZrO2 system stable up to 1,350°C were obtained. A method of pH titration of the initial salt mixture was used to study the competitive hydrolysis and precipitation processes in a three-component system. The microstructure and specific surface area of the precursors after synthesis were studied. Adetailed study of precursor phase formation in the range from 600 to 1,350°C was performed using STA, XRD, and laser sedimentography methods. It was shown that for all the studied compositions, an increase in temperature to 1,100°C results in a competitive phase formation accompanied by de-agglomeration in the system up to 1,000°C.
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This study was sponsored by Young Scientist Grant No. 75-15-2019-210 awarded by the President of the Russian Federation. The microstructure was studied using the equipment of the SPbSU’s Research Park Resource Center “Innovative Technologies of Composite Nanomaterials.” The STA data were obtained using the equipment of the SPbSU’s Research Park Resource Center “Thermogravimetric and Calorimetric Research Methods.”
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Translated from Novye Ogneupory, No. 2, pp. 59 – 64, February, 2020.
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Kurapova, O.Y., Golubev, S.N., Glukharev, A.G. et al. Relationship Between the Synthesis and Structure of Ceramic Precursors of the TiO2–CeO2–ZrO2 System. Refract Ind Ceram 61, 112–117 (2020). https://doi.org/10.1007/s11148-020-00440-0
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DOI: https://doi.org/10.1007/s11148-020-00440-0