| 源于“团簇-共振”模型的理想金属玻璃电子化学势均衡 |
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| 引用本文： | 韩光,羌建兵,王清,王英敏,夏俊海,朱春雷,全世光,董闯.源于“团簇-共振”模型的理想金属玻璃电子化学势均衡[J].物理学报,2012,61(3):36402-036402. |
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| 作者姓名： | 韩光 羌建兵 王清 王英敏 夏俊海 朱春雷 全世光 董闯 |
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| 作者单位： | 1. 大连理工大学三束材料改性教育部重点实验室,大连116024 大连大学物理科学与技术学院,大连116622
2. 大连理工大学三束材料改性教育部重点实验室,大连,116024 |
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| 基金项目： | 国家自然科学基金(批准号: 51041011,50901012)和 国家重点基础研究发展计划(批准号: 2007CB613902)资助的课题. |
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| 摘 要： | 理想金属玻璃是指完全满足电子结构稳定性的金属玻璃. 在我们前期工作中提出的“团簇加连接原子"及理想金属玻璃的“团簇-共振"结构模型的 基础上, 本文指出理想金属玻璃应该满足电子化学势均衡判据, 可定量给出团簇与连接原子的比例, 最终确定了理想金属玻璃成分式团簇](连接原子)x. 运用此判据, 解析了Cu-Zr基和Co-B基块体金属玻璃, 实验确定的最佳形成能力成分满足电子化学势均衡.
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| 关 键 词： | 金属玻璃 团簇加连接原子模型 团簇共振模型 电子化学势 |
| 收稿时间： | 4/3/2011 12:00:00 AM |
Electrochemical potential equilibrium of electrons in ideal metallic glasses based on the cluster-resonance model |
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| Han Guang,Qiang Jian-Bing,Wang Qing,Wang Ying-Min,Xia Jun-Hai,Zhu Chun-Lei,Quan Shi-Guang and Dong Chuang.Electrochemical potential equilibrium of electrons in ideal metallic glasses based on the cluster-resonance model[J].Acta Physica Sinica,2012,61(3):36402-036402. |
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| Authors: | Han Guang Qiang Jian-Bing Wang Qing Wang Ying-Min Xia Jun-Hai Zhu Chun-Lei Quan Shi-Guang and Dong Chuang |
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| Institution: | Key Laboratory of Materials Modification, Dalian University of Technology, Ministry of Education, Dalian 116024, China; College of Physics, Dalian University, Dalian 116622, China;Key Laboratory of Materials Modification, Dalian University of Technology, Ministry of Education, Dalian 116024, China;Key Laboratory of Materials Modification, Dalian University of Technology, Ministry of Education, Dalian 116024, China;Key Laboratory of Materials Modification, Dalian University of Technology, Ministry of Education, Dalian 116024, China;Key Laboratory of Materials Modification, Dalian University of Technology, Ministry of Education, Dalian 116024, China;Key Laboratory of Materials Modification, Dalian University of Technology, Ministry of Education, Dalian 116024, China;Key Laboratory of Materials Modification, Dalian University of Technology, Ministry of Education, Dalian 116024, China;Key Laboratory of Materials Modification, Dalian University of Technology, Ministry of Education, Dalian 116024, China |
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| Abstract: | Ideal metallic glasses are the metallic glasses that satisfy electronic structure stability. Previously we have developed a so-called `cluster-plus-glue-atom model' and more recently a 'cluster-resonance model' for the ideal metallic glasses. Good metallic glass forming compositions always satisfy simple cluster formulas cluster] (glue atoms), with x denoting the number of glue atoms matching one cluster. In this paper we present an electrochemical potential equilibrium criterion based on these models to obtain the number of glue atoms. By examples of Cu-Zr and Co-B bulk metallic glasses, it is confirmed that the experimentally determined good BMG-forming compositions well agree with the calculated composition formulas. |
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| Keywords: | metallic glasses cluster-plus-glue-atom cluster resonance electrochemical potentials |
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