| 匀晶系Sb_(95)Bi_5合金熔体的液态结构变化规律与机理研究 |
| |
| 引用本文： | 詹成伟,周吉学,刘运腾,李卫红.匀晶系Sb_(95)Bi_5合金熔体的液态结构变化规律与机理研究[J].山东科学,2014,27(1):51-55. |
| |
| 作者姓名： | 詹成伟 周吉学 刘运腾 李卫红 |
| |
| 作者单位： | 山东省科学院新材料研究所, 山东 济南 250014 |
| |
| 摘 要： | 利用液态金属X射线衍射仪和液态金属电阻率测量设备,分析了不同温度下Sb95Bi5合金的熔体结构、团簇相关半径以及Sb95Bi5合金熔体在降温过程中电阻率随温度的变化规律。实验结果表明,Sb95Bi5合金熔体的原子团簇相关半径在700~675℃之间发生了明显的变化,电阻率温度系数在698℃也发生了相应的变化,表明合金熔体在该温度范围内发生了液态结构的变化,这是由于该熔体中原子团簇在降温过程中发生Peierls形变所致。
|
| 关 键 词： | 液态结构 电阻率 相关半径 Peierls形变 |
| 收稿时间： | 2013-08-30 |
Evolution and mechanism of the liquid structure of Sb95 Bi5 melt |
| |
| ZHAN Cheng-wei,ZHOU Ji-xue,LIU Yun-teng,LI Wei-hong.Evolution and mechanism of the liquid structure of Sb95 Bi5 melt[J].Shandong Science,2014,27(1):51-55. |
| |
| Authors: | ZHAN Cheng-wei ZHOU Ji-xue LIU Yun-teng LI Wei-hong |
| |
| Institution: | New Materials Institute, Shandong Academy of Sciences, Jinan 250014, China |
| |
| Abstract: | This paper employs liquid metal XRD and resistivity meter to analyze the structure and cluster correlation radius of Sb95Bi5 melt and the resistivity variation with temperature in its temperature dropping process.Experimental results indicate that the cluster correlation radius of Sb95Bi5 melt varies dramatically from 700 ℃ to 675 ℃.Its resistivity temperature coefficient also changes at 698 ℃.This shows that its liquid structure varies in the temperature scope.The reason is that its Peierls transition occurs in temperatue dropping process. |
| |
| Keywords: | liquid structure resistivity correlation radius Peierls transition |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《山东科学》浏览原始摘要信息 |
| 点击此处可从《山东科学》下载免费的PDF全文 |
