首页|Structure and property of metal melt Ⅲ-Relationship between kinematic viscosity and size of atomic clusters
Structure and property of metal melt Ⅲ-Relationship between kinematic viscosity and size of atomic clusters
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The method of crucible rotating oscillation damping was employed to measure the kinematic viscosity of aluminum melt,and the curve of viscosity v versus temperature T from 935 to 1383 K was obtained.Besides,based on the calculation model of the evolution behavior of atomic clusters in liquid structure,the curve of atomic clusters size d versus temperature was obtained,and the calculated results are in good agreement with the experimental values.By analyzing experimental data,it was found that both the viscosity and the size of atomic clusters of aluminum melt are monodrome functions of temperature,and the relation between v(T) and d(T) is a linear function,i.e.,v = v0 + K.d(T).This relation indirectly verifies the calculation model of the structural information of metal melt,which is of great significance for studying the relation between melt microstructure and macro-physical properties.
MI GuangBao、LI PeiJie、POPEL P S、KONSTANTINOVA N Yu、HE LiangJu
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National Center of Novel Materials for International Research,Tsinghua University,Beijing 100084,China
Key Laboratory for Advanced Materials Processing Technology Ministry of Education,Department of Mechanical Engineering,Tsinghua University,Beijing 100084,China
Research Center "Melt",Ural State Pedagogical University,26 Cosmonavtovst,Ekaterinburg 620017,Russia
国家重点基础研究发展规划(973计划)International Cooperation Program in Science and Technology
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