Peer Reviewed

Journal of Thermal Spray Technology

, Volume 17, Issue 5, pp 831-837

First online:

New Generation Perovskite Thermal Barrier Coating Materials

  • W. MaAffiliated withSchool of Materials Science and Engineering, Inner Mongolia University of Technology
  • , M.O. JarligoAffiliated withInstitute of Energy Research, Forschungszentrum Jülich GmbH Email author 
  • , D.E. MackAffiliated withInstitute of Energy Research, Forschungszentrum Jülich GmbH
  • , D. PitzerAffiliated withInstitute of Energy Research, Forschungszentrum Jülich GmbH
  • , J. MalzbenderAffiliated withInstitute of Energy Research, Forschungszentrum Jülich GmbH
  • , R. VaßenAffiliated withInstitute of Energy Research, Forschungszentrum Jülich GmbH
  • , D. StöverAffiliated withInstitute of Energy Research, Forschungszentrum Jülich GmbH

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Abstract

Advanced ceramic materials of perovskite structure have been developed for potential application in thermal barrier coating systems, in an effort to improve the properties of the pre-existing ones like yttria-stabilized zirconia. Yb2O3 and Gd2O3 doped strontium zirconate (SrZrO3) and barium magnesium tantalate (Ba(Mg1/3Ta2/3)O3) of the ABO3 and complex A(B′1/3B′′2/3)O3 systems, respectively, have been synthesized using ball milling prior to solid state sintering. Thermal and mechanical investigations show desirable properties for high-temperature coating applications. On atmospheric plasma spraying, the newly developed thermal barrier coatings reveal promising thermal cycle lifetime up to 1350 °C.

Keywords

gas turbine coatings perovskite ceramics plasma-sprayed TBCs thermal cycling lifetime