Thermodynamic Properties of Experimentally Obtained Solid Sn Phase in Sn-Mg-Bi Ternary Alloy System

ÖZTÜRK E.

PHYSICS OF METALS AND METALLOGRAPHY, vol.126, no.7, pp.780-788, 2025 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 126 Issue: 7
  • Publication Date: 2025
  • Doi Number: 10.1134/s0031918x24603354
  • Journal Name: PHYSICS OF METALS AND METALLOGRAPHY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Compendex, INSPEC
  • Page Numbers: pp.780-788
  • Keywords: crystal growth, interfacial energy, lead-free systems, solidification, ternary alloys
  • Kocaeli University Affiliated: Yes

Abstract

This paper presents, the Gibss-Thomson Coefficient, solid-liquid interfacial energy and grain boundary energy of solid tin phase in tin-magnesium-bismuth ternary alloy systems, which were calculated by using the equilibrated grain boundary groove shapes obtained in a radial heat-flow system. Chemical analysis of solid Sn was proved with energy dispersive X-Ray analyzer. The thermal conductivity of the eutectic solid and the thermal conductivity ratio of eutectic liquid to the eutectic solid in Sn-1.56Mg-1.00Bi (at %) eutectic alloy at its eutectic melting temperature were measured with a radial heat flow apparatus and a Bridgman-type growth apparatus. The Gibbs-Thomson coefficient, solid-liquid interfacial energy and grain boundary energy of solid Sn in equilibrium with Sn-Mg-Bi eutectic liquid were determined to be (8.4 +/- 0.6) x 10-8 K m, (104.5 +/- 12.5) x 10-3 and (190.3 +/- 24.7) x 10-3 J m-2 respectively from observed grain boundary groove shapes. The calculated results were in good compatibility with the previous works.