A Direct Correlation between Viscosity and Liquid Structure in Cu-Sn Alloys
A Direct Correlation between Viscosity and Liquid Structure in Cu-Sn Alloys
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DOI：
10.1155/2017/7536853
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发表时间：
2017-12
影响因子：
1.5
通讯作者：
Yan Zhao;X. Hou
中科院分区：
文献类型：
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作者：
Yan Zhao;X. Hou
研究了 (, ,,, at.%) 熔体的粘度和液体结构。粘度和相关长度的温度依赖性均表现出指数衰减函数（阿伦尼乌斯型方程），这与我们之前研究的铜银合金类似。研究了粘度与液体结构之间的相关性。发现了粘度和相关长度之间的简单关系。和的比值与温度呈线性关系，这与我们之前在铜银合金中的研究结果不同。在四种Cu-Sn合金中，由于团簇的形成，合金具有较高的粘性流动活化能、结构演化活化能以及/与温度的线性关系的斜率。
The viscosity and liquid structure of (, ,,, at.%) melts were investigated. Temperature dependence of viscosity and correlation length all shows an exponential decay function (Arrhenius-type equation), which is similar to our former studied Cu-Ag alloys. The correlation between viscosity and liquid structure had been studied. A simple relation between viscosity and correlation length was found. The ratio of and shows a linear relationship with temperature, which is different from our former studied results in Cu-Ag alloys. Among the four Cu-Sn alloys, and alloys have higher activation energy for viscous flow , activation energy for structural evolution , and the slope of the linear relationship of / with temperature due to the clusters formation.