Dependence Of The Critical Cooling Rate For Lithium-Silicate Glass On Nucleating Agents

Author

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

Abstract

The critical cooling rate, R_c, for glass formation of a 40 Li₂O60 SiO₂ glass, mol%, doped with small amounts of Pt, Au, P₂O₅, and TiO₂ nucleating agents has been measured. R_c increases with increasing Pt and Au additions, but Pt has a larger effect than Au. Additions of P₂O₅ tend to decrease R_c, whereas TiO₂ has practically no effect on R_c. The devitrified glasses, including the undoped contains only crystalline Li₂O·SiO₂, but all the other devitrified glasses, including the undoped glass, contain both Li₂O·SiO₂ and Li₂O·2SiO₂. Analysis shows that R_c increases as the concentration of the Li₂O·SiO₂ phase in the devitrified glass increases.

Recommended Citation

T. Huang et al., "Dependence Of The Critical Cooling Rate For Lithium-Silicate Glass On Nucleating Agents," Journal of Non-Crystalline Solids, vol. 86, no. 1-2, pp. 204 - 212, Elsevier, Sep 1986.

The definitive version is available at https://doi.org/10.1016/0022-3093(86)90488-6

Department(s)

Materials Science and Engineering

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 Sep 1986