Analysis of thermal expansion of NaCl and KCl crystals

Abstract

We derived new expressions for volume expansion ratio, thermal expansivity and higher order temperature derivative of volume with the change in temperature. The relationships are developed on the basis of suggestion made by Wang and Reeber [12]. We used a relationship demonstrating the temperature dependence of isothermal bulk modulus due to Srivastava et al.[13] to generate various other expressions. The model is applied on NaCl and KCl crystals. The superiority of the presented formulations over other identical formulations is shown. A close agreement between theory and experiment reveals the validity of the present work.

Thermophysical Properties of NaCl, NaBr and NaF by <i>γ</i>-Ray Attenuation Technique

“…The results obtained for the coefficient of thermal expansion in the present work agree well with the values reported from X-ray studies, dilatometry and theoretical models [17][18][19][20][21][22] as seen from Figures 5-7 of NaCl, NaBr and NaF respectively. However, the results on variation of density and linear attenuation coefficient of NaCl, NaBr and NaF with temperature are not available from other methods for comparison.…”

Thermodynamically self-consistent method to predict thermophysical properties of ionic oxides

“…It is clear that the proposed TSC method predicts volume vs pressure behavior Thermal expansion coefficient (a) of CaO at different (a) temperatures (zero pressure) and (b) pressures (mentioned constant temperatures). Anderson(94)[38],Oda(92) [39], Fiquet(99)[40], Smith(68)[41],Saxena(92) [42],Rao(14) [43], Karki(03)[31],Srivastava(11) [44], Srivastava(09)[45],Singh(12) [46], Inbar(95)[47] and Isaak(90)[48].…”