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Five-parameter equation of state for solids correctly incorporating cohesive energy data |
| Tian Rong-Gang(田荣刚) and Sun Jiu-Xun(孙久勋)† |
| Department of Applied Physics, University of Electronic Science and Technology, Chengdu 610054, China |
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Abstract A five-parameter equation of state (EOS) is proposed to correctly incorporate the cohesive energy data in it without physically incorrect oscillations. The proposed EOS is applied to 10 selected metals. It is shown that the calculated compression curves are in good accordance with the experimental data. The values of the bulk modulus and its derivative with respect to pressure extracted from the proposed EOS remain almost unchanged while the data range used is varied.
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Received: 25 November 2010
Revised: 01 April 2011
Accepted manuscript online:
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PACS:
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05.70.Ce
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(Thermodynamic functions and equations of state)
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64.30.Ef
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(Equations of state of pure metals and alloys)
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62.50.-p
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(High-pressure effects in solids and liquids)
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| Fund: Project supported by the Joint Fund of National Natural Science Foundation of China and China Academy of Engineering
Physics (Grant No. 10876008), the New Century Excellent Researcher Award Program from the Educational Ministry of China
(Grant No. NCET-05-0799), and the Academic Excellence of University of Electronic Science and Technology of China (Grant
No. 23601008). |
Cite this article:
Tian Rong-Gang(田荣刚) and Sun Jiu-Xun(孙久勋) Five-parameter equation of state for solids correctly incorporating cohesive energy data 2011 Chin. Phys. B 20 080508
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