物理学报2012，Vol.61Issue(20)：344-350,7.
铋的固相及液相多相状态方程研究
Multiphase equation of states of solid and liquid phases for bismuth
摘要
Abstract
Element bismuth (Bi) will experience complex phase transitions under high temperature and high pressure, which means signifi- cant changes in physical properties, such as density, energy, etc. Multiphase equations of states (EOSs) of both solid and liquid phases for Bi are presented. The EOSs are based on the three-term expression for Helmholtz free energy, where the ion vibration free energy is evaluated from the mean field potential model we recently proposed. The calculated results show that our multiphase EOSs can well reproduce the experimental data, including phase diagram, isotherms of solid phases, density measurements of liquid phase and shock-wave compression data, which proves the rationality of the parameter values and the universal nature of this model.关键词
铋/多相状态方程/相图/高温高压Key words
bismuth/multiphase equation of states/phase diagram/high temperature and high pressure分类
数理科学引用本文复制引用
李英华,常敬臻,李雪梅,俞宇颖,戴程达,张林..铋的固相及液相多相状态方程研究[J].物理学报,2012,61(20):344-350,7.基金项目
中国工程物理研究院科学与技术发展基金,(批准号：201180101002,201080101002)和冲击波与爆轰波物理重点实验室基金,(批准号：9140C6701021102)资助的课题. （批准号：201180101002,201080101002）
