Thermo-electrical characterization of Sn-Zn alloys


ARI M., SAATÇİ B., GÜNDÜZ M., PAYVEREN M., DURMUŞ S.

MATERIALS CHARACTERIZATION, vol.59, no.6, pp.757-763, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 59 Issue: 6
  • Publication Date: 2008
  • Doi Number: 10.1016/j.matchar.2007.06.007
  • Journal Name: MATERIALS CHARACTERIZATION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.757-763
  • Keywords: electrical resistivity, thermal conductivity, Sn-Zn alloys, four-point probe method, LIQUID SURFACE ENERGIES, HIGH-TEMPERATURES, CD, CONDUCTIVITY, SYSTEMS
  • Erciyes University Affiliated: Yes

Abstract

The thermo-electrical properties of Sn-Zn alloys have been investigated for four different compositions. The SEM micrographs and EDX analysis of the samples have been obtained. The electrical resistivity measurements were performed by using four-point probe technique in the temperature range 300 K-575 K. The resistivity of samples increases linearly with temperature and the electrical conductivity is inversely proportional to temperature. The electrical current preferentially flows through the pure Sri phase having lower resistivity in the matrix. Also, thermal conductivity of samples has been measured by using the radial heat flow method. It has been found that the thermal conductivity decreases with the increasing temperature and composition of Sn. The results were consistent with available experimental results of other studies. Finally, the temperature coefficient of electrical resistivity and the temperature coefficient of thermal conductivity have been determined, which were independent from the composition of Sri and Zn. (C) 2007 Elsevier Inc. All rights reserved.