Oxidation and corrosion behavior of 2D laminated SiC/SiC with Si/mullite/BSAS EBC in dry oxygen/water vapor at 1200 °C

Xinxin Cao, Xingang Luan, Yulei Wang, Ziqi Zhang, Jianzhang Li, Guifang Han, Laifei Cheng

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18 Scopus citations

Abstract

Si/mullite/BSAS EBC were plasma sprayed on SiC/SiC and their oxidation and corrosion behavior were investigated in dry oxygen and water vapor at 1200 °C. A modified thermal-oxidation kinetic model was used to estimate the permeability of water vapor and dry oxygen in the mullite/BSAS and SiO2 layer, respectively. The contribution of EBC to the oxidation/corrosion process and that of SiC/SiC substrates were extracted. The method of permeability calculation and contribution extraction in this work provides a direct evaluation of the protective effect of EBCs and can be used as a criterion to compare different EBC systems.

Original languageEnglish
Article number111237
JournalCorrosion Science
Volume219
DOIs
StatePublished - 15 Jul 2023

Keywords

  • Dry oxygen
  • Environmental Barrier Coatings (EBCs)
  • Oxidation and corrosion behavior
  • SiC/SiC composites
  • Water vapor

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