Thermodynamic assessments of the Pu–Zn and La–Pu systems
Thermodynamic assessments of the Pu–Zn and La–Pu systems
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DOI：
10.1016/j.jnucmat.2014.07.001
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发表时间：
2014-10
影响因子：
3.1
通讯作者：
Xingjun Liu;Q. He;D. Wang;Yong Lu;M. Chen;J. Jia;Cuiping Wang
中科院分区：
文献类型：
--
作者：
Xingjun Liu;Q. He;D. Wang;Yong Lu;M. Chen;J. Jia;Cuiping Wang
基于相平衡和热力学性质的实验信息，采用相图计算（CALPHAD）方法得到了Pu-Zn和La-Pu体系的热力学描述。液相（εPu）、（δPu）、（δPu）、（γLa）和（βLa）相的吉布斯自由能用亚规则溶液模型描述。七种金属间化合物（PuZn2, Pu13Zn58, Pu3Zn22, Pu2Zn17, κ, κ '和λ）通过亚晶格模型建模。采用优化后的一组参数，计算结果与实验数据基本吻合。
The thermodynamic description of the Pu–Zn and La–Pu systems were obtained using the CALPHAD (Calculation ofPhaseDiagrams) method on the basis of experimental information for phase equilibria and thermodynamic properties. The Gibbs free energies of the liquid, (εPu), (δ′Pu), (δPu), (γLa) and (βLa) phases were described by the subregular solution model. Seven intermetallic compounds (PuZn2, Pu13Zn58, Pu3Zn22, Pu2Zn17, κ, κ′, and λ) were modeled by the sublattice model. A reasonable agreement between the present calculated results and experimental data has been achieved with a set of optimized parameters.