| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Multiphase Equation of States of the Solid and Liquid Phases of Al and Ta |
| LI Ying-Hua1,CHANG Jing-Zhen2 LI Xue-Mei1,ZHANG Lin1** |
1Science and Technology on Shock Wave and Detonation Physics Laboratory, Institute of Fluid Physics, P.O. Box 919-102, Mianyang 621900
2Institute of Structural Mechanics, China Academy of Engineering Physics, Mianyang 621900 |
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| Cite this article: |
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LI Ying-Hua, CHANG Jing-Zhen LI Xue-Mei, ZHANG Lin 2012 Chin. Phys. Lett. 29 046201 |
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Abstract The multiphase equation of states (EOSs) of both the solid and liquid phases of Al and Ta are presented. These EOSs are carried out on the basis of the Helmholtz free energy, where the ion vibration free energy is evaluated from the mean field potential (MFP) model we recently proposed [Physica B 406 (2011) 4163]. The calculated results show that our multiphase EOSs can give a good reproduction of the measured phase diagrams and other experimental data, including static high-pressure measurements, shock Hugoniots and the thermodynamic quantities of these metals.
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Received: 05 December 2011
Published: 04 April 2012
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| PACS: |
62.50.Ef
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(Shock wave effects in solids and liquids)
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64.30.Ef
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(Equations of state of pure metals and alloys)
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64.70.D-
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(Solid-liquid transitions)
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