Titre : Device for measuring the longitudinal effective thermal conductivity of strands adapted to different stages of carbonization Auteurs : Baptiste BOUYER, Xavier TARDIF, Célia MERCADER, Didier DELAUNAY, Revue : Entropy: Thermodynamics – Energy – Environment – Economy Numéro : Issue 4 Volume : 1 Date : 2020/07/7 DOI : 10.21494/ISTE.OP.2020.0546 ISSN : 2634-1476 Résumé : A device for for fibers axial thermal conductivity measurement has been developed and modeled by finite elements. The numerical model made it possible to minimize the radiative losses. Thermal conductivity measurements have been performed on three standard samples representative of the measurement range and validate this device from 0.1 W.m-1.K-1 to 100 W.m-1.K-1 as well as on samples made up of viscose fibers and T300 carbon fibers, which validated the device for the characterization of fiber strands from precursor fibers to carbon fibers. Éditeur : ISTE OpenScience