Sodium Diffusion in Glass: II, Mixed Na-K Silicate Glasses
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.
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 http://dx.doi.org/10.1111/j.1151-2916.1977.tb14085.x
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)
Article - Journal
© 1977 Wiley-Blackwell, All rights reserved.