| U基二元熔体的热力学计算 |
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| 引用本文： | 张新建,汪小琳,罗 超.U基二元熔体的热力学计算[J].稀有金属材料与工程,2009,38(4):603-606. |
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| 作者姓名： | 张新建 汪小琳 罗 超 |
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| 作者单位： | 表面物理与化学国家重点实验室,四川,绵阳,621907 |
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| 摘 要： | 采用Miedema半经验模型计算了U-Nb、U-Ti及U-Zr二元熔体的混合热、过剩熵及过剩自由能等热力学性质,并根据热力学原理计算了组元U在不同温度的二元熔体中的活度值.结果表明,U-Nb,U-Ti和U-Zr熔体相对于拉乌尔定律均呈负偏差,U-Ti和U-Zr合金较U.Nb合金更易于形成中间化合物.计算结果与实验相图符合较好.
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| 关 键 词： | U基合金 热力学计算 Miedema模型 |
| 收稿时间： | 2008/6/21 0:00:00 |
Thermodynamic Calculation of U-based Binary Melts |
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| Zhang Xinjian,Wang Xiaolin and Luo Chao.Thermodynamic Calculation of U-based Binary Melts[J].Rare Metal Materials and Engineering,2009,38(4):603-606. |
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| Authors: | Zhang Xinjian Wang Xiaolin and Luo Chao |
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| Affiliation: | National Key Laboratory for Surface Physics and Chemistry;Mianyang 621907;China |
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| Abstract: | The semiempirical Miedema model was used to calculate the formation enthalpy,the excess entropy and excess Gibbs free energy of U-Nb,U-Ti and U-Zr binary alloy melts.The activities of uranium in different melts at different temperatures were then computed according to the thermodynamical equations.The results indicate that U-Nb,U-Ti and U-Zr binary melts show negative deviation from Raoult law.The U-Ti and U-Zr binary alloys are more inclined to form intermetallic compounds than U-Nb binary alloy according ... |
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| Keywords: | U-based alloy thermodynamic calculation Miedema model |
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