The Korean Journal of Ceramics

The Korean Ceramic Society (한국세라믹학회)
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Thermodynamic Assessment of the $ZrO_2-TiO_2$ System

  • Park, Jeong-Ho (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
  • Ping Liang (Pulvermetallurgisches Laboratorium, Max-Planck Institute fur Metallforshung) ;
  • Seifert, Hans-Jurgen (Pulvermetallurgisches Laboratorium, Max-Planck Institute fur Metallforshung) ;
  • Fritz Aldinger (Pulvermetallurgisches Laboratorium, Max-Planck Institute fur Metallforshung) ;
  • Koo, Bon-Keup (Department of Material Engineering, Taejon National University of Technology) ;
  • Kim, Ho-Gi (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology)
  • Published : 2001.03.01
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Abstract

A thermodynamic assessment for the ZrO$_2$-TiO$_2$ system has been conducted. An optimal thermodynamic data set for this system is evaluated by the CALPHAD(CALculation of PHAse Diagram) method applied to experimental phase diagram and thermodynamic data. The liquid is described by ionic liquid model with two sublattices. The solubilities of the solid phases, tetragonal ZrO$_2$ and TiO$_2$(rutile), were described by subregular substitutional model with one sublattice. Two compounds, ZrTiO$_4$ and ZrTi$_2$O$_6$, are modeled as stoichiometric compounds.

Keywords

References

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