Phase equilibria in TiO2-rich part of the MgO–CaO–TiO2 system at 1500–1600 °C

Min Chen, Xingbang Wan*, Pekka Taskinen, Dmitry Sukhomlinov, Junjie Shi, Radoslaw Michallik, Ari Jokilaakso

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)
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Abstract

The equilibrium phase relations of the MgO–CaO–TiO2 system were investigated at 1500–1600 °C in air using the high-temperature isothermal equilibration of samples in platinum crucibles followed by the rapid quenching technique. The phase compositions were analyzed using an electron probe X-ray microanalyzer (EPMA). The isothermal sections at 1500 °C and 1600 °C were constructed based on the experimentally determined liquid phase compositions. The present results deviate significantly from previous observations as well as the predictions by MTDATA and FactSage using their oxide databases, in particular in the perovskite primary phase field.

Original languageEnglish
Pages (from-to)20116-20125
Number of pages10
JournalCeramics International
Volume48
Issue number14
Early online dateApr 2022
DOIs
Publication statusPublished - 15 Jul 2022
MoE publication typeA1 Journal article-refereed

Keywords

  • Phase diagram
  • Phase equilibria
  • Resource efficiency
  • Thermodynamics
  • TiO
  • Titania-bearing slag

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