Abstract
On the basis of the lattice potential energy with two forms proposed by Born–Mie and Born–Mayer, respectively, the critical interionic separations \({{ r}}_{\mathrm{i}}\) where the lattice is fractured due to tensile force have been evaluated for alkali metal halides. The theoretical results are analyzed together with the interionic separations \({{ r}}_{\mathrm{m}}\) determined by the melting temperature and the help of the isobaric equation of state. A new and simple interrelationship between \({{ r}}_{\mathrm{m}}\) and \({{ r}}_{\mathrm{i}}\) is obtained, and the crystal melting behavior can be accordingly predicted for NaCl-structure ionic crystals.
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Acknowledgments
One of the authors Zou would like to thank X. B. Tang and X. L. Wang of the Anhui University of Technology for their technical help on this paper and C. M. Xie of the Anhui University for useful discussions. Thanks are also due to Prof. L. R. Chen of the Anhui Normal University for his guidance. This work was supported by National Natural Science Foundation of China (Grant No. 51276089).
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Zou, Y., Huang, H. & Cui, G.L. Analysis of the Interrelationship Between Melting and Fracturing of Alkali Halides. Int J Thermophys 36, 1569–1576 (2015). https://doi.org/10.1007/s10765-015-1896-1
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DOI: https://doi.org/10.1007/s10765-015-1896-1