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Investigation on the interfacial cracks in air plasma sprayed thermal barrier coatings

  • Xi'an Jiaotong University

Research output: Contribution to conferencePaperpeer-review

Abstract

The mechanism of competition between different interfacial cracks in a thermal barrier coating system (TBCs) is experimentally and numerically investigated. In-situ three-point bending tests were conducted on TBCs samples having different top coats (TC) and bond coats (BC). The competition between cracks at TC/BC and BC/substrate interfaces in the TBCs was observed, and then analyzed to elucidate the mechanism. Different fracture modes of the TBCs have been defined. A failure map based on the modulus ratio and thickness ratio is numerically established, which agrees well with the experimental results.

Original languageEnglish
Pages421-422
Number of pages2
StatePublished - 2017
Event14th International Conference on Fracture, ICF 2017 - Rhodes, Greece
Duration: 18 Jun 201720 Jun 2017

Conference

Conference14th International Conference on Fracture, ICF 2017
Country/TerritoryGreece
CityRhodes
Period18/06/1720/06/17

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