Determination of mechanical properties of bondcoat materials by high temperature instrumented indentation

Villemiane, A.; Passilly, B.; Fajfrowski, Michel; Jardret, Vincent; Mévrel, R.

doi:10.1051/mattech/2011025

Matériaux & Techniques

2011

DOI: 10.1051/mattech/2011025

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Determination of mechanical properties of bondcoat materials by high temperature instrumented indentation

A. Villemiane

B. Passilly

Michel Fajfrowski³

et al.

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Investigation of Pile-Up Behavior for Thermal Barrier Coatings Under Elevated-Temperature Indentation

Pei

et al. 2016

Journal of Applied Mechanics

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The elevated-temperature indentation has been utilized to measure the elevated-temperature mechanical properties of thermal barrier coatings (TBCs), which have a major influence on their thermomechanical characteristics and failures. In this paper, the pile-up phenomenon of TBCs under elevated-temperature indentation was investigated, and a characterization method for Young's modulus of TBCs was proposed. According to the dimensional analysis and finite-element method, a critical temperature-dependent factor was conducted as the criterion for pile-up behavior. Some experiment results agreed fairly well with the criterion. Then, the pile-up behavior of TBCs at elevated temperature was studied. It was found that the pile-up behavior depended on the temperature-dependent factor and got larger with increasing temperature. Finally, a characterization method was proposed to extract the Young's modulus of TBCs, which was found to be more suitable for elevated-temperature indentation.

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Investigation of Pile-Up Behavior for Thermal Barrier Coatings Under Elevated-Temperature Indentation

Pei

et al. 2016

Journal of Applied Mechanics

View full text Add to dashboard Cite

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Determination of mechanical properties of bondcoat materials by high temperature instrumented indentation

Cited by 1 publication

References 11 publications

Investigation of Pile-Up Behavior for Thermal Barrier Coatings Under Elevated-Temperature Indentation

Investigation of Pile-Up Behavior for Thermal Barrier Coatings Under Elevated-Temperature Indentation

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