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Comparison of the hot corrosion of nanostructured and microstructured thermal barrier coatings

  • C. H. Zhou
  • , Z. Y. Zhang
  • , Q. M. Zhang
  • , Y. Li*
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • School of Chemistry and Chemical Engineering, Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

Thermal barrier coatings of nanostructured and microstructured yttria stabilized zirconia (YSZ) were deposited on GH4049 substrate by air plasma spray, respectively. Hot corrosion behaviors of both coatings were evaluated in comparative aspects. Results revealed that the nanostructured YSZ displayed higher resistance to the hot corrosion attack by Na2SO4 and V2O5. It was also shown, through X-ray diffraction quantitative phase analysis, that the nanostructured YSZ had good resistance to the tetragonal-monoclinic phase transformation during the hot corrosion process.

Original languageEnglish
Pages (from-to)613-618
Number of pages6
JournalMaterials and Corrosion
Volume65
Issue number6
DOIs
StatePublished - Jun 2014

Keywords

  • hot corrosion
  • nanostructured ceramic
  • thermal barrier coating
  • yttria stabilized zirconia

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