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Degradation of Thermal Barrier Coatings with Molten CaO-MgO-Al2O3-SiO2 (CMAS) Deposition and Hot Corrosion

  • Muhammet Karabas
  • , Emre Bal
  • , Ayse Kiliç
  • , Ismail Yilmaz Taptik

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

Thermal barrier coatings (TBCs) are susceptible to degradation by molten CMAS (calcium-magnesium alumino silicate) deposits and hot corrosion , when employed in gas turbine engines operating in a dust-laden environment and low quality fuels . In this study, CMAS and hot corrosion degradation of TBCs are investigated. Yttria stabilized zirconia (YSZ) and Ceria-yttria stabilized zirconia coatings in contact with a CMAS dust and hot corrosion
salts deposit were subjected to heat treatment in air at temperature 1200°C for 12h. Phase
transformations and microstructural avolution were examined by using x-ray diffraction and scanning electron microscopy.
Original languageEnglish
Title of host publication18th International Metallurgy & Materials Congress
Pages810-813
Number of pages4
Publication statusPublished - 2016
Externally publishedYes
Event18th International Metallurgy and Materials Congress, IMMC 2016: 45 Years and Beyond - Istanbul, Turkey
Duration: 29 Sept 20161 Oct 2016

Conference

Conference18th International Metallurgy and Materials Congress, IMMC 2016
Abbreviated titleIMMC 2016
Country/TerritoryTurkey
CityIstanbul
Period29/09/161/10/16

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