Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Design Technique for Improving the Durability of Top Coating for Thermal Barrier of Gas Turbine

가스터빈의 열차폐용 탑코팅의 내구성 향상 설계기술

  • Received : 2013.09.09
  • Accepted : 2013.12.02
  • Published : 2014.01.01
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Abstract

Thermal barrier coating (TBC) is used to protect the substrate and extend the operating life of the gas turbine for a power plant and an aircraft. The major cause of failure of such a coating is the spallation of coating, and it results from the thermal stress between top coating and bond coating. To improve the durability of TBC system, the dense vertical cracked (DVC) coating method to insert vertical cracks is applied to a gas turbine blade. In this study, a criterion for the design of vertical crack in the DVC coating was presented using the finite element analysis.

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References

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