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Vol. 27, Special Issue, May 2014, pp. 75-81




Determination of Thermal Properties of Graphite-Black-Coating by Photothermal
and Electro-Pyroelectric Techniques

Najoua Bennaji, Iméne Mellouki and Noureddine Yacoubi

UR Photothermie, composants électroniques et structure mécanique PCESM – NABEUL, Laboratoire de Photometrie, IPEIN, BP 62 Merazka
8000, Nabeul, Tunisia
Tel.: 0021699395514

E-mail: bennajin@yahoo.fr


Received: 31 December 2012 /Accepted: 10 August 2013 /Published: 26 May 2014

Digital Sensors and Sensor Sysstems


Abstract: In this study we will describe and compare photothermal and Electro-pyroelectric techniques which permit the determination of thermal properties of materials. We will give a brief account of the basic aspects of the photothermal model and of a setup with an alternative detection technique with a pyroelectric transducer. The possibilities of these measuring schemes for the simultaneous measurement of the thermal conductivity and diffusivity will be illustrated with results from a study of Graphite- black-coating. Finally, we will compare those two non-destructive techniques (photothermal and Electro-pyroelectric).


Keywords: “Mirage Effect” method, Electro-pyroelectric method, Graphite-black-coating, Thermal conductivity, Thermal diffusivity.


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