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Thermal diffusivity measurements on two-layered and three-layered systems with the laser-flash method

  • A research effort is reported in which the thermal diffusivity of coatings on substrate materials has been determined. The measurements were performed with a conventional laser-flash apparatus with rear-side detection of the temperature response with an infrared detector. In the evaluation of the data the theoretica! curve is fitted to the complete recorded temperature–time curve, instead of just using the t1/2 point. It is also demonstrated how to include the influence of a thermal contact resistance between the two layers in the evaluation. The paper presents measurements on two-layered and three-layered heat-barrier systems consisting of ZrO, and Ni CrA| Y on nickel.

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Metadaten
Author:Jürgen Hartmann
Persistent identifier:https://www.researchgate.net/profile/Juergen_Hartmann3/publication/260087738_Thermal_Diffusivity_Measurements_on_Two-Layered_and_Three-Layered_Systems_with_the_Laser-Flash_Method/links/57f60d7d08ae8da3ce568cac/Thermal-Diffusivity-Measurements-on-Two-Layered-and-Three-Layered-Systems-with-the-Laser-Flash-Method.pdf
Parent Title (English):High Temperatures – High Pressures
Document Type:Article
Language:English
Year of publication:1993
Publishing Institution:Hochschule für Angewandte Wissenschaften Würzburg-Schweinfurt
Release Date:2020/12/04
Volume:25
First Page:231
Last Page:238
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 536 Wärme
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