Glass Physics and Chemistry. Vol. 48, No. 6, Pages 669-672, 2022

A. S. Saratovskii^a^,^b^,^c^,*, S. K. Evstropiev^b^,^c^,^d, K. V. Dukel’skii^b^,^c^,^d, and V. M. Volynkin^b^,^e

^aGrebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, St. Petersburg, 199034 Russia

^bSt. Petersburg State Technological Institute (Technological University), St. Petersburg, 190013 Russia

^eBonch-Bruevich St. Petersburg State University of Telecommunications, St. Petersburg, 193232 Russia

Abstract—In the work, the MgO–Al₂O₃–ZrO₂–SiO₂ coatings on the surface of quartz ceramics were prepared by sol-gel method. The synthesized materials were examined by X-ray phase and electron microscopic analyses. It is shown that composite gels retain an amorphous structure after thermal treatment at 600°C, and the formation and subsequent transformation of various oxide crystal phases is observed after calcination at temperatures above 900°C. The behavior of the thermal evolution of the structure of the obtained gels is generally similar to the course of structural changes occurring during glasses crystallization.

Sol-Gel Synthesis of MgO–Al2O3–ZrO2–SiO2 Coatings on Quartz Ceramics

Sol-Gel Synthesis of MgO–Al₂O₃–ZrO₂–SiO₂ Coatings on Quartz Ceramics