Effect of surface properties of MgO on its dissolution and spinel growth in CaO–SiO2–Al2O3 slag

Cheol Min Yoon, Dong Joon Min

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3 Citations (Scopus)


The dissolution behavior of MgO in CaO–SiO2–Al2O3 ternary slag at the interface of single-crystal, dense poly-crystal, and porous poly-crystal MgO was investigated to evaluate the effect of the surface properties of the MgO. The experimental results revealed that a detached spinel layer formed at the MgO interface due to the change in thermodynamic condition of the slag, which was independent of the surface properties. On the other hand, it was also confirmed that the growth rate and morphology of the detached spinel layer strongly depended on the surface properties, such as porosity and curvature of MgO. During the formation of the spinel layer at the interface during MgO dissolution, a kinetic approach adopting parabolic relation theory was employed to determine the correlation between the surface properties and the spinel growth mechanism.

Original languageEnglish
Pages (from-to)15017-15025
Number of pages9
JournalCeramics International
Issue number11
Publication statusPublished - 2022 Jun 1

Bibliographical note

Funding Information:
This work was supported by the Korea Evaluation Institute of Industrial Technology Project No. 10076604. This work was supported by the Brain Korea 21 FOUR Project in 2021.

Publisher Copyright:
© 2022

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry


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