An equation of state for alkali metals

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Semi-empirical equations of state based on Lindemann's law have been developed to determine the pressure (P) dependence of the melting temperature (Tm) of Li, K, Rb and Cs. The basic inputs are Grüneisen parameter and the bulk modulus. Tm-P variations exhibit maximum melting temperature with concave downwards. The maximum in Tm for Cs is found to occur at pressure of 2.2 GPa whereas for Li, K and Rb it falls in the range of 7-9.5 GPa. The predicted values of Tm as a function of pressure, based on the present empirical relation, fit quite well with the available experimental data. The empirical relation can also be used to extrapolate Tm at higher pressure from the values available at lower pressures.

Original languageEnglish
Pages (from-to)101-105
Number of pages5
JournalJournal of Physics and Chemistry of Solids
Volume91
DOIs
Publication statusPublished - Apr 1 2016

Fingerprint

Alkali Metals
Alkali metals
Equations of state
alkali metals
equations of state
Melting point
temperature
Temperature
melting
semiempirical equations
bulk modulus
Elastic moduli
low pressure

Keywords

  • Alkali metals
  • Equation-of-state
  • Thermodynamic properties

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Science(all)

Cite this

An equation of state for alkali metals. / Arafin, Sayyadul; Singh, Ram N.

In: Journal of Physics and Chemistry of Solids, Vol. 91, 01.04.2016, p. 101-105.

Research output: Contribution to journalArticle

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