Article(id=1323704678256607470, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1323704676520177870, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1158854400000, receivedDateStr=2006-09-22, revisedDate=1173888000000, revisedDateStr=2007-03-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1793525388539, onlineDateStr=2026-11-01, pubDate=1188921600000, pubDateStr=2007-09-05, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793525388539, onlineIssueDateStr=2026-11-01, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793525388539, creator=13701087609, updateTime=1793525388539, updator=13701087609, issue=Issue{id=1323704676520177870, tenantId=1146029695717560320, journalId=1255847867265597444, year='2007', volume='21', issue='3', pageStart='225', pageEnd='336', issueExtLink='null', onlineDate='null', pubDate='1188921600000', pubDateStr='2007-09-05', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793525388126, creator='13701087609', updateTime=1793525388126, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=269, endPage=278, ext={EN=ArticleExt(id=1323704681112928514, articleId=1323704678256607470, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=Modified Einstein Model to Consider Thermal Effect and Applied to Three Universal Equations of State, columnId=0, journalTitle=Chinese Journal of High Pressure Physics, columnName=, runingTitle=null, highlight=null, articleAbstract=

The Einstein model to consider thermal effect in universal equations of state (UEOS) is modified. It is proposed that the zero-point vibration term should be deleted in a thermal UEOS, and the parameters can not be directly taken as experimental data at a reference temperature, VR, BR, B′R and , but their values at absolute zero temperature, V0, B0, B′0 and . An approach is proposed to solve V0, B0, B′0 and from VR, BR, B′R and . The approaches are applied to three typical universal EOSs, including the Baonza, mMNH and Vinet EOSs. The numerical results show that the solved values of parameters are almost identical for different EOSs. And the thermo-physical properties predicted through different EOSs are almost identical at zero and low-pressure conditions, once the same approach and input experimental data are used to solve parameters. It is concluded that the prediction of thermo-physical properties at zero and low-pressure conditions cannot be taken as the criteria to judge the applicability of a universal EOS.

, authors=Chao ZHANG, Jiu-Xun SUN, Rong-Gang TIAN, Ming LI, authorsList=Chao ZHANG, Jiu-Xun SUN, Rong-Gang TIAN, Ming LI, authorCompany=null, correspAuthors=Jiu-Xun SUN, authorNote=

ZHANG Chao (1980—), male, master of physics. Main interest: Thermo-physical properties of condensed matters. E-mail:

, correspAuthorsNote=
SUN Jiu-Xun, (1967—), male, doctor of physics, professor. Main interest: Equation of state, phase equilibrium and phase transition. E-mail:
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对固体考虑热效应的爱因斯坦模型进行了修正。指出考虑热效应的通用状态方程中不应该包含零点振动项,方程参数不应该直接取为参考温度下的实验值VR、BR、B′R和,而应该取为零温下的数值V0、B0、B′0和;提出了一种从VR、BR、B′R和求解V0、B0、B′0和的方法。将提出的方法应用于三个典型的通用状态方程,包括Baonza、mMNH和Vinet方程。数值结果表明,利用相同的实验参数对三个方程解出的参数,以及预测的零压和低压下的热物理性质差异很小,而且都与实验数据符合很好。这些结果表明,在零压和低压下预测热物理性质的精确度不足以用来判断各种通用状态方程的适用性。

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对爱因斯坦模型的修正及考虑热效应的三个通用状态方程
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张超 , 孙久勋 , 田荣刚 , 李明
高压物理学报 | 2007,21(3): 269-278
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高压物理学报 2007 , 21 (3) : 269 -278
对爱因斯坦模型的修正及考虑热效应的三个通用状态方程
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张超 , 孙久勋 , 田荣刚, 李明
作者信息
  • 电子科技大学应用物理系,四川 成都 610054
通讯作者:
孙久勋
Modified Einstein Model to Consider Thermal Effect and Applied to Three Universal Equations of State
Chao ZHANG , Jiu-Xun SUN , Rong-Gang TIAN, Ming LI
Affiliations
  • Department of Applied Physics, University of Electronic Science and Technology, Chengdu 610054, China
  • Corresponding Author:
    SUN Jiu-Xun, (1967—), male, doctor of physics, professor. Main interest: Equation of state, phase equilibrium and phase transition. E-mail:

    ZHANG Chao (1980—), male, master of physics. Main interest: Thermo-physical properties of condensed matters. E-mail:

出版时间: 2007-09-05
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对固体考虑热效应的爱因斯坦模型进行了修正。指出考虑热效应的通用状态方程中不应该包含零点振动项,方程参数不应该直接取为参考温度下的实验值VR、BR、B′R和,而应该取为零温下的数值V0、B0、B′0和;提出了一种从VR、BR、B′R和求解V0、B0、B′0和的方法。将提出的方法应用于三个典型的通用状态方程,包括Baonza、mMNH和Vinet方程。数值结果表明,利用相同的实验参数对三个方程解出的参数,以及预测的零压和低压下的热物理性质差异很小,而且都与实验数据符合很好。这些结果表明,在零压和低压下预测热物理性质的精确度不足以用来判断各种通用状态方程的适用性。

状态方程  /  高压  /  热物理性质  /  热膨胀

The Einstein model to consider thermal effect in universal equations of state (UEOS) is modified. It is proposed that the zero-point vibration term should be deleted in a thermal UEOS, and the parameters can not be directly taken as experimental data at a reference temperature, VR, BR, B′R and , but their values at absolute zero temperature, V0, B0, B′0 and . An approach is proposed to solve V0, B0, B′0 and from VR, BR, B′R and . The approaches are applied to three typical universal EOSs, including the Baonza, mMNH and Vinet EOSs. The numerical results show that the solved values of parameters are almost identical for different EOSs. And the thermo-physical properties predicted through different EOSs are almost identical at zero and low-pressure conditions, once the same approach and input experimental data are used to solve parameters. It is concluded that the prediction of thermo-physical properties at zero and low-pressure conditions cannot be taken as the criteria to judge the applicability of a universal EOS.

equation-of-state  /  high-pressure  /  thermodynamic properties  /  thermal expansions
张超, 孙久勋, 田荣刚, 李明. 对爱因斯坦模型的修正及考虑热效应的三个通用状态方程. 高压物理学报, 2007 , 21 (3) : 269 -278 .
Chao ZHANG, Jiu-Xun SUN, Rong-Gang TIAN, Ming LI. Modified Einstein Model to Consider Thermal Effect and Applied to Three Universal Equations of State[J]. Chinese Journal of High Pressure Physics, 2007 , 21 (3) : 269 -278 .
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2007年第21卷第3期
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  • 接收时间:2006-09-22
  • 首发时间:2026-11-01
  • 出版时间:2007-09-05
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  • 收稿日期:2006-09-22
  • 修回日期:2007-03-15
基金
Program of Sichuan Province of China under Grant(06ZQ026-010)
Program of Education Ministration of China under Grant(NCET-05-0799)
Program of UESTC under Grant(23601008)
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    电子科技大学应用物理系,四川 成都 610054

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