Title

Crystallization of Calcia-Gallia-Silica Glasses

Abstract

The critical cooling rate, Rc, for glass formation and the kinetics of crystallization of the compositions 18.4CaO-(81.6 - X)Ga2O3-XSiO2 (in wt%), with X=3, 6, 9, and 13.8, were studied by using a thermal image furnace. Crystallization was studied nonisothermally and the data were analyzed by using the Avrami equation. The Rc and activation energy for crystallization both decrease with increasing silica content. The results obtained by the present technique agree with those obtained from DTA measurements.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Chemical Reactions - Reaction Kinetics; Glass Manufacture - Physical Chemistry; Mathematical Models; Silica; Thermal Variables Measurement; Avrami Equation; Critical Cooling Rate; Glass Formation; Phase Transformation Kinetics; Silica Content

International Standard Serial Number (ISSN)

0002-7820; 1551-2916

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1984 Wiley-Blackwell, All rights reserved.

Share

 
COinS