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Physics Research International
Volume 2011 (2011), Article ID 186704, 6 pages
http://dx.doi.org/10.1155/2011/186704
Research Article

Isobaric Study of the Elastic Properties for Alkaline Earth Oxides under High Temperature

1Department of Physics, Agra College, Agra 282002, India
2Department of Physics, Goverment Degree College, Sambhal, Moradabad, India
3K. P. Engineering College, N. H. 2, Etmadpur, Agra 283202, India

Received 20 September 2010; Revised 7 March 2011; Accepted 9 March 2011

Academic Editor: Fahrettin Yakuphanoglu

Copyright © 2011 Seema Gupta et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A simple and straightforward theoretical model is developed to investigate the elastic properties of alkaline earth oxides under the effect of temperature as well as pressure. The calculation is performed with the help of high pressure-high temperature equation of state based on thermodynamic analysis. The anharmonic term arising due to thermal expansion has been taken into account in the expansion of logarithmic series of the thermodynamic data. The results obtained for alkaline earth oxides are discussed and compared with experimental data under the combined effect of high temperature and high pressure. The results are found to be in good agreement with available experimental results.