将 M.Lamvik 教授提出的利用相界面移动速率测定热物性方法应用于共晶伍德合金相变过程中固、液相导温系数、导热系数的测定。通过测量金属试样电阻的变化可确定相界面的位置，由相变前沿的移动速率可算出通过试样的热流量，进而求得试样的导温系数和导热系数。对伍德合金的测定结果与文献值吻合较好，证实了这一方法是行之有效的。
Based on the theory of one dimensional phase transformation, the thermal conductivityof liquid and solid metal can be determined by measuring the speed of the phase transition,while the position of the liquid/solid interface can be measured by the electric resistance of themetal. This method was applied to determine the thermal conductivity of Wood's metal andsatisfactory result was obtained.
参考文献
| [1] | M.On Thermal.Conduction at Freezing/MeltingPoint---An Experimental Method[A].Thermal Conductivity,1994:495-505. |
| [2] | M Zhou J M .Experimental Study of Thermal Conductivity ofSolid and Liquid Phase Transition[J].International Journal of Theoretical Physics,1995,16:567-576. |
| [3] | N F .The Resistance of the Liquid Metal[J].Proceedings of the Royal Society,1939,146:465-472. |
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