Acoustic Evidence of Phase Separation in Lithium Silicate Glasses
Resource
Chinese Journal of Physics, Vol. 28, No. 3
Journal
Chinese Journal of Physics
Journal Volume
Vol. 28
Journal Issue
No. 3
Pages
-
Date Issued
1990-06
Date
1990-06
Author(s)
Lin, M.J.
Wang, W.M.
Wang, M.L.
DOI
20060927115926773743
Abstract
Ultrasonic measurements of a series of Liz 0-xSiOa (x = 1-6) glass samples are presented.
In terms of the model of frozen-in thermal fluctuations in glasses, the analysis of the relationship
of temperature coefficient of ultrasonic velocity change versus Liz0 molar fraotion provides
evidence of the existence of two-phase separation phenomenon in lithium silicate glasses
with a molar fraction of lithium oxide less than 0.25. It also provides some information about
the structural change of the glasses from a system of two phases to a single phase, as the molar
fraction of Liz0 is further increased.
Publisher
臺北市:國立臺灣大學物理系所
Type
journal article