Determination of the electrical and thermal properties of Al-Sn-Zn alloys

Abstract

In the present work, the electrical resistivity, thermal conductivity and microstructure of the70 at. % Al-15 at. % Sn-15 at. % Zn alloy have been investigated. The electrical resistivity ofthe alloy was obtained by four-point probe (DC 4PPT) method. Electrical resistivitymeasurements are used in conjunction with Wiedeman-Franz (W-F) law and Smith-Palmer(S-P) equations to obtain the thermal conductivity of the alloy. The microstructure parametersof the Al-Sn-Zn ternary alloy were obtained by XRD. The surface and phases of alloy wereshowed by SEM, and the composition of each phase was determined by EDX.