Sodium Diffusion in Glass: II, Mixed Na-K Silicate Glasses

Author

Chung Lim
D. E. Day, Missouri University of Science and TechnologyFollow

Abstract

The isotope effect for ²²Na/²⁴Na diffusion was used to investigate the sodium ion transport mechanism in mixed Na-K silicate glasses. A combined vacancy-interstitialcy mechanism provided the best agreement with the experimental ²²Na/²⁴Na isotope effect data. At low temperatures sodium diffusion occurs predominantly by 2-atom interstitialcy jumps, but with increasing temperature an increasing fraction of the ions diffuse by a single-atom vacancy mechanism.

Recommended Citation

C. Lim and D. E. Day, "Sodium Diffusion in Glass: II, Mixed Na-K Silicate Glasses," Journal of the American Ceramic Society, vol. 60, no. 11-12, pp. 473 - 477, Wiley-Blackwell, Nov 1977.

The definitive version is available at https://doi.org/10.1111/j.1151-2916.1977.tb14085.x

Department(s)

Materials Science and Engineering

Keywords and Phrases

Carrier mobility; Diffusion; Metal ions; Silicates; Increasing temperatures; Isotope effect; Low temperatures; Silicate glass; Single atoms; Sodium ions; Vacancy mechanisms

International Standard Serial Number (ISSN)

0002-7820; 1551-2916

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1977 Wiley-Blackwell, All rights reserved.

Publication Date

01 Nov 1977