Photothermal microanalysis of thermal discontinuities in metallic samples |
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Authors: | Patrick Pruja, Sauveur B net, Bernard Claudet, Olivier Faugeroux,Jean-Jacques Serra |
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Affiliation: | a LP2A, Université de Perpignan, 52 avenue de Villeneuve, 66860, Perpignan Cedex, France;b DGA/CTA/LOT/GHF, BP 6 Odeillo, 66125, Font Romeu Cedex, France |
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Abstract: | Modeling the behavior of a protective coating during a thermal shock not only requires the knowledge of its own thermophysical characteristics, but also those of the coating–substrate discontinuity. According to its nature, this discontinuity can be modeled as a zero-thickness interface (thermal contact resistance) or a finite thickness layer (thermal third body). This paper presents an experimental device and two associated thermal transfer models developed in view of the microscale characterization of such discontinuities. |
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