Some Elastic Properties and Phase Transitions in Some Alkali Halides Using Interatomic Potential Model

• Authors: H Yazar
• Languages of publication: EN

Abstracts

EN

We have predicted the phase transition pressure in some alkali halides using an interatomic potential approach based on rigid ion model. This potential form represents the composite form of the inverse power dependence and exponential dependence of the repulsive energy on interionic distance. Some thermoelastic properties such as second order elastic constants have been calculated using the same potential. The phase transition pressures (28.69 and 2.4 GPa) obtained by us for two alkali halides (NaCl and KCl) are in closer agreement with their corresponding experimental data (29.0 and 2.0 GPa). This approach is promising with respect to prediction of the phase transition pressure of other alkali halides as well.

Keywords

EN

78.55.Fv; 05.70.-a; 61.50.Ks; 64.10.+h

Discipline

• 64.10.+h: General theory of equations of state and phase equilibria(see also 05.70.Ce Thermodynamic functions and equations of state)
• 78.55.Fv: Solid alkali halides
• 61.50.Ks: Crystallographic aspects of phase transformations; pressure effects(see also 81.30.Hd in materials science)
• 05.70.-a: Thermodynamics(see also section 64 Equations of state, phase equilibria, and phase transitions, and section 65 Thermal properties of condensed matter; for chemical thermodynamics, see 82.60.-s; for thermodynamics of plasmas, see 52.25.Kn; for thermodynamic properties of quantum fluids, see 67.25.bd, and 67.30.ef; for thermodynamics of nanoparticles, see 82.60.Qr, and 65.80.-g; for thermodynamic processes in astrophysics, see 95.30.Tg; for thermodynamics in volcanology, see 91.40.Pc)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2006
• Volume: 109
• Issue: 6
• Pages: 743-751

Dates

published

2006-06

received

2005-04-26

(unknown)

2005-11-14

(unknown)

2006-01-30

Contributors

author

H Yazar

• Department of Physics, Kırıkkale University, 71450, Yahşihan, Kırıkkale, Turkey

References

• 1. R.K. Singh, Phys. Rep., 85, 259, 1982
• 2. P.W. Bridgman, Proc. Am. Acad. Arts. Sci., 76, 9, 1945
• 3. H.R. Yazar, S. Ağan, K. Çolakoğlu, Turk J. Phys., 25, 345, 2001
• 4. M.L. Cohen, S. Froyen, Phys. Rev. B, 29, 3770, 1984
• 5. G.C. Kennedy, S.N. Vaidya, J. Phys. Chem. Solids, 32, 951, 1971
• 6. V.V.S. Nirwal, R.K. Singh, Phys. Rev. B, 20, 5379, 1979
• 7. K.N. Jog, R.K. Singh, S.P. Sanyal, Phys. Rev. B, 31, 6047, 1985
• 8. D.B. Sirdeshmukh, K.G. Subhadra, Phys. Status Solidi B, 150, K11, 1988
• 9. J. Michielson, P. Woerlee, F.V.D. Graff, A.A. Ketelaar, J. Chem. Soc. Faraday Trans. II, 71, 1730, 1975
• 10. D.W. Hafemeister, W.H. Flygare, J. Chem. Phys., 43, 795, 1965
• 11. W. Cochran, Solid State Sci., 21, 63, 1971
• 12. C.S. Smith, L.S. Chain, J. Phys. Chem. Solids, 36, 205, 1975
• 13. L. Orson, C. Anderson, R.W. Robert, Phys. Earth Planet, Interiors, 3, North Holland, Amsterdam 1975, p. 63
• 14. O.L. Anderson, H. Oda, Rev. Geophys., 30, 57, 1992
• 15. D.L. Heinz, R. Jeanloz, Phys. Rev. B, 30, 6045, 1984
• 16. W.A. Basset, T. Takahashi, H.K. Mao, J.S. Weaver, J. Appl. Phys., 39, 319, 1968
• 17. M.L. Cohen, S. Froyen, J. Phys. C, Solid State Phys., 19, 2623, 1986
• 18. R.K. Singh, N.V.K. Prabhakar, Phys. Status Solidi B, 141, K29, 1987
• 19. K.N. Jog, PhD. Thesis, Rani Durgawati University, Jabalpur 1988, p. 77

Identifiers

DOI

10.12693/APhysPolA.109.743