中国物理B ›› 2015, Vol. 24 ›› Issue (9): 96601-096601.doi: 10.1088/1674-1056/24/9/096601
• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇 下一篇
赵岩a b, 侯晓霞a
Zhao Yan (赵岩)a b, Hou Xiao-Xia (侯晓霞)a
摘要: The viscosities of a series of Cu-Ag melts in a temperature range from 1473 K to nearly liquid temperatures are measured by using an oscillating viscometer. At the same temperature, the value of viscosity increases first with silver content increasing, and reaches a maximum value at the eutectic component Cu40Ag60, then decreases. All the temperature dependences of the viscosities of Cu-Ag melts conform with the Arrhenius equation. The parameters of correlation length D of the studied Cu-Ag melts are calculated according to the experimental results of x-ray diffraction. The temperature dependence of correlation length D shows an exponential decay function, which is similar to the Arrhenius equation. Based on the values of viscosities and correlation length D, a direct correlation between viscosity and liquid structure is found for the investigated Cu-Ag melts through comparative analysis.
中图分类号: (Studies of viscosity and rheological properties of specific liquids)