Statistical moment method in studying the melting of tungsten: a comprehensive review

Hoc Quang Nguyen () and Ha Thai Hoang ()
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Hoc Quang Nguyen: Hanoi National University of Education
Ha Thai Hoang: Hanoi National University of Education

The European Physical Journal B: Condensed Matter and Complex Systems, 2024, vol. 97, issue 5, 1-10

Abstract: Abstract The melting properties of W at high pressure regime are investigated theoretically by the statistical moment method. The two basic single-phase approaches we use are the Lindemann criterion and the Burakovsky-Preston-Silbar dislocation theory. Besides, we also propose a simple vacancy model to evaluate the influence of point defects on the melting process. The efficiency, accuracy and correlation between the above-mentioned approaches are discussed and clarified. The obtained results demonstrate that the increase in lattice defects plays an important role in promoting the melting of W as well as explaining the jump of thermodynamic quantities in the vicinity of the solid—liquid phase transition point. Our study promises to provide a more comprehensive and in-depth view of the melting mechanism in transition metals such as W. Graphical abstract Melting temperature of W at P = 0 and high-pressure melting curve of W given by SMM, AIMD, CMD, DAC and SW

Date: 2024
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DOI: 10.1140/epjb/s10051-024-00687-3

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