Title

Internal Friction of Proton-Exchanged Li2O·Al2O3·2SiO2 Glass

Abstract

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.

Department(s)

Materials Science and Engineering

International Standard Serial Number (ISSN)

27820

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1972 Wiley-Blackwell, All rights reserved.

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