An experimental study of thermophysical properties of alloy near melting point by a novel method
An investigation of thermophysical properties of alloy by the novel method has been carried out. At present it is necessary for nearly all of measurement methods for coefficient of thermal conductivity to put a temperature gradient on material measurement. In this time the structure, crystal form and thermophysical properties of material measured are often changed. The coefficient of thermal conductivity near melting point can be measured by moving speed of phase interface. Based on the theory, the author investigated a novel measurement system for coefficient of thermal conductivity of alloy near melting point. By the measurement system, the author measured the coefficients of thermal conductivity of Bi-Zn alloy (Bi-60％, Zn-40％) and Al- Si alloy (Al-87.4％, Si-12.6％) near phase transition point. The measured values were respectively 17.95w m-1 k-1 (liquid phase) and 34.9 w m-1 k-1 (solid phase). The measured values of Al-Si alloy (Al-87.4％, Si-12.6％) were respectively 79.9 w m-1 k-1 (liquid phase) and 214.8 w m-1 k-1 (solid phase).
near melting point phase transition moving speed coefficient of thermal conductivity measurement
Deng Shengxiang Xie Qingsong
College of Energy Science and Engineering, Changsha, Hunan, 410083, China College of Material Science and Engineering, Changsha, Hunan, 410083, China
国际会议
三亚
英文
157-159
2012-01-06（万方平台首次上网日期，不代表论文的发表时间）