An Overview of Phase Diagram and Thermodynamic Parameters of Pt-Au-Sn System

摘要

Rare and precious metals materials with unique physical and chemical properties are widely used in aviation, aerospace, navigation, electronic, electric, petroleum chemical industry, glass fiber, waste gas purification, metallurgical and other industries, which are known as "the vitamin of modern industry". In this article, the development and application of Pt-Au-Sn system, the binary and ternary alloy phase diagrams in the Pt-Au-Sn system, and the related thermodynamic parameters, including phase structure and formation enthalpy of alloy, the cohesive energy and the Gibbs free energy of Pt-Au-Sn system were reviewed, at the same time, the further research interests and the experimental verification of phase diagram of Pt-Au-Sn system were also discussed, which could provide necessary theoretical support for the alloy composition design and industrial applications in the future.