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The Influence of the Laser Energy on the Thermal Diffusivity Evaluation of TBC by Laser Flash

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Abstract

Laser Flash is considered the standard technique for measuring the thermal diffusivity of solids. The interaction between TBC and the laser energy is studied because very low thermal effusivity and thermal diffusivity of TBC can produce very high temperature increase on the surface and temperature gradient within the sample. In such a case, microstructural modifications of TBC can be generated. In this work, such phenomena are studied experimentally on free standing TBC samples.

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Acknowledgments

This work has been financed by the Research Fund for the Italian Electrical System under the Contract Agreement between CESI RICERCA and the Ministry of Economic Development—General Directorate for Energy and Mining Resources stipulated on June 21 2007, in compliance with the Decree n.73 of June 18, 2007. The authors acknowledge Mr. L. Lorenzoni and Mr S. Capelli of CESI RICERCA for their technical support.

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Authors and Affiliations

  1. CESI RICERCA, Via Rubattino, 54, 20134, Milano, Italy

    Federico Cernuschi

  2. ITC – CNR, C.so Stati Uniti, 4, 35127, Padova, Italy

    Paolo Bison

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  1. Federico Cernuschi
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  2. Paolo Bison
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Correspondence to Federico Cernuschi.

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Cernuschi, F., Bison, P. The Influence of the Laser Energy on the Thermal Diffusivity Evaluation of TBC by Laser Flash. J Therm Spray Tech 17, 465–472 (2008). https://doi.org/10.1007/s11666-008-9199-8

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  • DOI: https://doi.org/10.1007/s11666-008-9199-8

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