Dependence of viscosity of Cu9In4 intermetallics melt on thermal history
来源期刊：Rare Metals2006年第1期
论文作者：CHENG Sujuan, WANG Zhonghua, BIAN Xiufang, and SUI Xuepu Industry Engineering Department, Dongying Vocational College, Dongying , China The Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan , China Zibo Dacheng Thermoelectricity Co. Ltd., Zibo , China
文章页码：27 - 31
摘 要：<正>The temperature dependence of the dynamic viscosity of Cu9In4 intermetallics melt has been investigated in five kinds of different heating and cooling processes with a torsional oscillation viscometer. It has been found that the viscosity of all Cu9In4 intermetallics decreases with increasing temperature in five kinds of different thermal processes. Thermal history has considerable effect on the viscosity. The viscosity in the cooling process with high superheating is greater than that in the cooling process with low superheating. The viscosity in the heating process is greater than that in the cooling process. No anomalous change in viscosity is measured in three kinds of cooling processes with low superheating. The anomalous change occurs at about 1050℃ in cooling with high superheating and at 800℃ in heating. Furthermore, the structural variation in different thermal processes has also been discussed on the basis of the change in viscosity and DSC analysis.
CHENG Sujuan, WANG Zhonghua, BIAN Xiufang, and SUI Xuepu Industry Engineering Department, Dongying Vocational College, Dongying 257091, China The Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250061, China Zibo Dacheng Thermoelectricity Co. Ltd., Zibo 255000, China
摘 要：<正>The temperature dependence of the dynamic viscosity of Cu9In4 intermetallics melt has been investigated in five kinds of different heating and cooling processes with a torsional oscillation viscometer. It has been found that the viscosity of all Cu9In4 intermetallics decreases with increasing temperature in five kinds of different thermal processes. Thermal history has considerable effect on the viscosity. The viscosity in the cooling process with high superheating is greater than that in the cooling process with low superheating. The viscosity in the heating process is greater than that in the cooling process. No anomalous change in viscosity is measured in three kinds of cooling processes with low superheating. The anomalous change occurs at about 1050℃ in cooling with high superheating and at 800℃ in heating. Furthermore, the structural variation in different thermal processes has also been discussed on the basis of the change in viscosity and DSC analysis.
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