Internal Friction of Proton-Exchanged Li2O·Al2O3·2SiO2 Glass
Protons were introduced into the surface of an Li2O·Al2O3·2SiO2 glass fiber (0.5 mm in diameter) by ion exchange in NH4HSO4 at 366°C for 21 h. Infrared absorption measurements established that the protons were associated with bridging oxygen ions. After ion exchange, the magnitude of the alkali internal friction peak decreased and a new peak appeared at ~220°C. This new peak is attributed to the interaction of alkali and hydrogen ions, independent of the presence of nonbridging oxygen ions.
A. Ismail et al., "Internal Friction of Proton-Exchanged Li2O·Al2O3·2SiO2 Glass," Journal of the American Ceramic Society, vol. 55, no. 5, pp. 254-256, Wiley-Blackwell, May 1972.
The definitive version is available at https://doi.org/10.1111/j.1151-2916.1972.tb11274.x
Materials Science and Engineering
International Standard Serial Number (ISSN)
Article - Journal
© 1972 Wiley-Blackwell, All rights reserved.