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Thermodynamic database of the phase diagrams in the Au-RE binary systems

  • Yuheng Li
  • , Fei Xu
  • , Pengwu Yang
  • , Jialian Li
  • , Lujiang Zhou
  • , Shuliang Wang*
  • , Yuanhua Lin
  • , Xingjun Liu
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The thermodynamic database has been developed for Au-RE binary systems. Based on the experimental data including thermodynamic properties and phase equilibrium, the thermodynamic assessments of phase diagrams in the Au-RE (RE: Nd, Dy, Yb, Gd, Tb, Sm, Lu) binary systems were carried out by using the CALPHAD (Calculation of Phase Diagrams) method. The Gibbs free energies of the solution phases were described by substitutional solution model, and all of the intermetallic compounds were described by sublattice models. The calculated phase diagrams are congruent with the available experimental data. Combined with the assessed Au-RE (RE: La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) binary systems, the thermodynamic database of Au-RE binary systems has been developed, and some significant information of thermodynamic properties and phase equilibrium could be calculated, which is important for the further development of Sn-Au-RE high-temperature lead-free solders.

Original languageEnglish
Title of host publicationMethods of Design and Characterization of Materials, Research and Development of Technological Processes
EditorsYafang Han, Ying Wu, Guangxian Li, Fusheng Pan, Runhua Fan, Xuefeng Liu, Xuefeng Liu, Xuefeng Liu
PublisherTrans Tech Publications Ltd
Pages433-438
Number of pages6
ISBN (Print)9783038357629
DOIs
StatePublished - 2016
Externally publishedYes
EventChinese Materials Congress on Methods of Design and Characterization of Materials, Research and Development of Technological Processes, 2015 - Guiyang, China
Duration: 10 Jul 201514 Jul 2015

Publication series

NameMaterials Science Forum
Volume850
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

ConferenceChinese Materials Congress on Methods of Design and Characterization of Materials, Research and Development of Technological Processes, 2015
Country/TerritoryChina
CityGuiyang
Period10/07/1514/07/15

Keywords

  • Au-RE binary systems
  • CALPHAD method
  • Thermodynamic database

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