Viscosities and their correlations with structures of Cu-Ag melts

doi:10.1088/1674-1056/24/9/096601

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

Viscosities and their correlations with structures of Cu-Ag melts

赵岩^{a b}, 侯晓霞^a

a School of Mechanical and Electronical Engineering, Dezhou University, Dezhou 253023, China;
b Research Institute of Engineering Materials, Dezhou University, Dezhou 253023, China

收稿日期:2014-09-04 修回日期:2015-01-27 出版日期:2015-09-05 发布日期:2015-09-05
基金资助:
Project supported by the Science and Technology Development Program of Shandong Province, China (Grant No. 2011YD03099) and the Natural Science Foundation of Shandong Province, China (Grant No. ZR2014EL001).

Viscosities and their correlations with structures of Cu-Ag melts

Zhao Yan (赵岩)^{a b}, Hou Xiao-Xia (侯晓霞)^a

a School of Mechanical and Electronical Engineering, Dezhou University, Dezhou 253023, China;
b Research Institute of Engineering Materials, Dezhou University, Dezhou 253023, China

Received:2014-09-04 Revised:2015-01-27 Online:2015-09-05 Published:2015-09-05
Contact: Zhao Yan E-mail:dzuzhy@126.com
Supported by:
Project supported by the Science and Technology Development Program of Shandong Province, China (Grant No. 2011YD03099) and the Natural Science Foundation of Shandong Province, China (Grant No. ZR2014EL001).

摘要/Abstract

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.

关键词: viscosity, liquid structure, correlation length

Abstract: 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.

Key words: viscosity, liquid structure, correlation length

中图分类号: (Studies of viscosity and rheological properties of specific liquids)

66.20.Ej

61.05.cp (X-ray diffraction) 61.25.Mv (Liquid metals and alloys) 66.20.Cy (Theory and modeling of viscosity and rheological properties, including computer simulation)

赵岩, 侯晓霞. Viscosities and their correlations with structures of Cu-Ag melts[J]. 中国物理B, 2015, 24(9): 96601-096601.

Zhao Yan (赵岩), Hou Xiao-Xia (侯晓霞). Viscosities and their correlations with structures of Cu-Ag melts[J]. Chin. Phys. B, 2015, 24(9): 96601-096601.

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Viscosities and their correlations with structures of Cu-Ag melts

Viscosities and their correlations with structures of Cu-Ag melts

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