| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Properties of Liquid Nickel along Melting Lines under High Pressure |
| CAO Qi-Long1**, WANG Pan-Pan2, HUANG Duo-Hui1, YANG Jun-Sheng1, WAN Ming-Jie1, WANG Fan-Hou1 |
1Key Laboratory of Computational Physics, Yibin University, Yibin 644007
2Management Centre for Experimental and Teaching Resource, Yibin University, Yibin 644007
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| Cite this article: |
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CAO Qi-Long, WANG Pan-Pan, HUANG Duo-Hui et al 2015 Chin. Phys. Lett. 32 086201 |
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Abstract We report a molecular dynamics study of structural and transport properties of liquid nickel under high pressures. Pressure dependencies of pair distribution function and pair correlation entropy along the melting line indicate that the configuration change along melting lines decreases with increasing pressure. The calculated diffusion coefficients and viscosity by using entropy-scaling laws with modified parameters and ideal parameters are compared with those extracted from mean-square displacement or the Stokes–Einstein relation. The results suggest that the entropy-scaling laws hold well for liquid nickel under high-pressure conditions, and the diffusion coefficients and viscosity increase moderately with pressure along melting lines.
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Received: 17 December 2014
Published: 02 September 2015
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| PACS: |
62.50.-p
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(High-pressure effects in solids and liquids)
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65.40.gd
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(Entropy)
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66.20.-d
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(Viscosity of liquids; diffusive momentum transport)
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