| 常压下单质的熔化熵 |
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| 引用本文： | 杨明超,黄多辉,赵景春,凌芳,王梅,谢自超,曹启龙.常压下单质的熔化熵[J].宜宾师范高等专科学校学报,2013(12):38-41. |
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| 作者姓名： | 杨明超 黄多辉 赵景春 凌芳 王梅 谢自超 曹启龙 |
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| 作者单位： | [1] 宜宾学院物理与电子工程学院,四川宜宾644007 [2] 宜宾学院计算物理四川省高校重点实验室,四川宜宾644007 |
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| 基金项目： | 教育部全国大学生创新创业训练计划项目（201210641106）;四川省教育厅项目（13ZA0198,13ZB0211） |
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| 摘 要： | 应用分子动力学方法计算了常压下Al、Cu、Ni、Ta、W、Si六种单质的熔化温度（Tm）、熔化焓（△Hm）和熔化熵（△Sm）,并验证了Richard定律、梅平等人总结的经验公式和Kubachewski提出的经验公式在常压下的适用性.计算结果表明：这三种定律（经验公式）对Al、Cu、Ni、Ta、W单质符合得较好,对Si单质存在较大误差.
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| 关 键 词： | 分子动力学 熔化熵 熔化温度 熔化焓 |
The Fusion Entropy of Several Metals at Ambient Pressure |
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| YANG Mingchaot,HUANG Duohui,ZHAO Jingchun,LING Fang,WANG Mei,XIE ZichaoI,CAO Qilong.The Fusion Entropy of Several Metals at Ambient Pressure[J].Journal of Yibin Teachers College,2013(12):38-41. |
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| Authors: | YANG Mingchaot HUANG Duohui ZHAO Jingchun LING Fang WANG Mei XIE ZichaoI CAO Qilong |
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| Institution: | 2 ( 1. School of Physics and Electronic Engineering, Yibin University, Yibin 644007, China; 2. Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, China) |
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| Abstract: | Under ambient conditions, the melting temperature （ Tm） , fusion enthalpy （ △Hm ） and fusion entropy（△Sm） of six simple metals （ including A1, Cu, Ni, Ta, W and Si） are calculated by molecular dynamics method, and the validity of Richard＇ s law, empirical formulations summed up by Kubachewski et al. are verified. The results show that Cu, A1, Ni, Ta and W are in good agreement with the above three empirical formulations, however, a big error occurs for Si. |
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| Keywords: | molecular dynamics fusion entropy melting temperature fusion enthalpy |
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