An Elementary Kinetic Theory of Dilute Silica Glass
JSGT 1948 V32 T340-T365
From an argument based on the randomness of the ionic arrangement in glass, and from kinetic considerations, the conclusion was reached that configurational changes are bound to take place in glass as the temperature is changed. The distribution function associated with the randomness is assumed to be approximated by a two-cell histogram, and on this assumption approximate formulae for the thermal, viscous and elastic properties of silica-rich glasses are derived. The formulae were applied to experimental results on Pyrex brand glass, and it is shown that there is a quantitative inter-relation between the variations of thermal expansion, electrical resistivity and viscosity with temperature.. Notes on the rate of growth of cristobalite and on the release of stress in the same glass are included.
S. M. Cox