Pressure Dependence of Interatomic Separation and Thermal Expansivity for Alkali Halides and Periclase (MgO)

• Authors: Q. Liu
• Languages of publication: EN

Abstracts

EN

In this paper, a new isothermal equation of state is developed based on an approximation for the volume dependence of the Anderson-Grüneisen parameter δ_T along isotherm. The values of interatomic separation r with the change of pressure for nine alkali halides and periclase were investigated with the help of the new isotherm equation of state. The compression data are used to predict the pressure dependence of the coefficient of volume thermal expansion. The results are compared with the available experimental data and other theoretical results.

Keywords

EN

64.30.-t; 65.40.De; 91.60.Ki

Discipline

• 65.40.De: Thermal expansion; thermomechanical effects
• 64.30.-t: Equations of state of specific substances
• 91.60.Ki: Thermal properties

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 3
• Pages: 709-712

Dates

published

2009-03

received

2008-10-22

(unknown)

2009-02-03

Contributors

author

Q. Liu

• Department of Physics, Anhui University, Hefei 230039, China

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Identifiers

DOI

10.12693/APhysPolA.115.709