Elastic Moduli and Related Thermodynamic Properties of Cryocrystalline Argon
Detail examination is carried out of elastic moduli and related thermodynamic properties entire the whole range of solid state of cryocrystalline Argon. It is shown that tight correlation Κ(V) exists between isothermal compressibility Κ(T) and molar volume V (T) of the solid. With high value of squared linear correlation coefficient R2 dependence Κ(V) is linear below premelting range. At higher temperatures – up to the melting point of Ar – correlation dependence Κ(V) increases monotonically with larger slope. The compressibility of solid Argon was thoroughly studied in the premelting range; the results are interpreted in terms of vacancy model.
Argon (Ar), Bulk modulus, Compressibility, Cryocrystals, Correlation, Molar Volume, Rare gas solids, Vacancies
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