Crystallization of Baria-Titania-Silica Glasses

Author

C. S. Ray, Missouri University of Science and TechnologyFollow
D. E. Day, Missouri University of Science and TechnologyFollow

Abstract

The critical cooling rate for glass formation, R_c, and the crystallization kinetics of the compositions 1 2(100 - x)BaO- 1 2(100 - x)TiO₂-xSiO₂ with x = 20, 25, 30, 33.3 and 40 mol.% were studied using a thermal image furnace. Crystallization was studied under nonisothermal conditions and the data were analyzed using the Johnson-Mehl-Avrami (JMA) equation. The R_c and activation energy for crystallization both decrease with increasing silica content. Fresnoite, Ba₂TiSi₂O₈, crystallized from all of the glasses when they were reheated. The infrared absorption spectra of the glasses and crystals show that they both contain (Si₂O₇) and square pyramidal (TiO₅) groups.

Recommended Citation

C. S. Ray and D. E. Day, "Crystallization of Baria-Titania-Silica Glasses," Journal of Non-Crystalline Solids, vol. 81, no. 1-2, pp. 173 - 183, Elsevier, Apr 1986.

The definitive version is available at https://doi.org/10.1016/0022-3093(86)90268-1

Department(s)

Materials Science and Engineering

Keywords and Phrases

Oxides - Amorphous; Baria-titania-silica Glasses; Johnson-mehl-avrami Equation; Glass, Metallic

International Standard Serial Number (ISSN)

0022-3093; 1873-4812

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1986 Elsevier, All rights reserved.

Publication Date

01 Apr 1986