Journal of Thermal Spray Technology

, Volume 17, Issue 5–6, pp 831–837

New Generation Perovskite Thermal Barrier Coating Materials

  • W. Ma
  • M.O. Jarligo
  • D.E. Mack
  • D. Pitzer
  • J. Malzbender
  • R. Vaßen
  • D. Stöver
Peer Reviewed

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 

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Copyright information

© ASM International 2008

Authors and Affiliations

  • W. Ma
    • 1
  • M.O. Jarligo
    • 2
  • D.E. Mack
    • 2
  • D. Pitzer
    • 2
  • J. Malzbender
    • 2
  • R. Vaßen
    • 2
  • D. Stöver
    • 2
  1. 1.School of Materials Science and EngineeringInner Mongolia University of TechnologyHohhotP.R. China
  2. 2.Institute of Energy ResearchForschungszentrum Jülich GmbHJuelichGermany

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