| Ni-Ga二元系的热力学计算 |
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| 引用本文： | 袁文霞,HIpser,乔芝郁. Ni-Ga二元系的热力学计算[J]. 北京科技大学学报, 2002, 24(3): 383-386. DOI: 10.3321/j.issn:1001-053X.2002.03.040 |
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| 作者姓名： | 袁文霞 HIpser 乔芝郁 |
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| 作者单位： | 1. 北京科技大学应用科学学院,北京 100083;2. lnstitut fur Anorganische Chemie,Universitat Wien,A-1 090 Wien,Austria;3. 北京科技大学冶金学院,北京,100083 |
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| 基金项目： | 国家自然科学基金;29871005; |
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| 摘 要： | 采用CALPHAD技术评估了Ni-Ga二元系的相图和热力学性质.用双亚晶格模型描述2个有序相(L1 2-Ni3Ga和B2-NiGa)的热力学行为,并在优化过程中考虑了fc-(Ni)和LI2-Ni3Ga相的有序-无序转变.溶液相(液相、fcc-(Ni)固溶体)的热力学模型采用Redlich-Kister方程,其余5个中间化合物被视为整比化合物.
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| 关 键 词： | Ni-Ga系 相图计算 热力学 CALPHAD技术 |
| 修稿时间： | 2002-01-04 |
Thermodynamic Assessment of the Ni-Ga System |
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| YUAN Wenxia,Herbert Ipser,QIAO Zhiyu. Thermodynamic Assessment of the Ni-Ga System[J]. Journal of University of Science and Technology Beijing, 2002, 24(3): 383-386. DOI: 10.3321/j.issn:1001-053X.2002.03.040 |
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| Authors: | YUAN Wenxia Herbert Ipser QIAO Zhiyu |
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| Abstract: | The Ni-Ga system was assessed using the CALPHAD technique. The thermodynamic behav-iour of the ordered phases (Li 2-Ni3Ga and H2-NiGa) were described by the sub-lattice model, and the order-disorder transformation of fcc-(Ni) and Li2-Ni3Ga phase was considered in the assessment. The solution phases (liquid, fcc-Ni) were modeled with the Redlich-Kister equation. The other 5 intermetallic compounds were treated as stoichiometric phases. |
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| Keywords: | Ni-Ga system phase diagram calculation thermodynamics. |
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