摘要
综合评估了W Zr体系的实验结果。采用Redlich Kister多项式描述体系液相、bcc和hcp相的过剩自由焓。利用第一性原理和德拜理论得到化合物W2 Zr的自由焓 ,并结合选取合理的实验数据 ,优化得到W Zr二元体系各相的热力学参数 ,用优化结果计算的相图与实验结果吻合较好。
The experiments of W Zr binary system were evaluated. Redich Kister polynomial was used to describe the excess Gibbs energy of liquid, bcc and hcp phase. Ab Initio combined with Debye theory was used to calculate the Gibbs energy of stoichiometric W 2Zr phase. The parameters of different phases were optimized based on available experimental data and the calculated Gibbs energy of W 2Zr compound. The caculated phase diagram is in good agreement with the experimental data.
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2003年第6期701-705,共5页
Chinese Journal of Rare Metals
基金
国家 973项目 ( 2 0 0 0 0 6710 1)
国家自然科学基金 ( 5 0 0 710 11)资助项目