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Evidence of second order transition induced by the porosity in the thermal conductivity of sintered metals

Aïmen E. Gheribi, Jean-Laurent Gardarein, Fabrice Rigollet and Patrice Chartrand

Article (2014)

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Cite this document: Gheribi, A. E., Gardarein, J.-L., Rigollet, F. & Chartrand, P. (2014). Evidence of second order transition induced by the porosity in the thermal conductivity of sintered metals. APL Materials, 2(7). doi:10.1063/1.4886221
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Abstract

In this paper, using both experimental data and theoretical modelling, we investigate the degradation of the thermal conductivity of sintered metals due simultaneously to the grain boundary thermal resistance and the porosity. We show that the porosity dependence of the thermal conductivity of sintered material from spherical particle powder, exhibits a critical behaviour associated with a second order phase transition. An analytical model with a single parameter is proposed to describe the critical behaviour of the thermal conductivity of sintered metals versus porosity.

Uncontrolled Keywords

resistance

Open Access document in PolyPublie
Subjects: 1800 Génie chimique > 1803 Thermodynamique
2000 Science et technologie des matériaux > 2003 Métallurgie, métaux et alliages
Department: Département de génie chimique
Research Center: CRCT - Centre de recherche en calcul thermochimique
Funders: CRSNG/NSERC, Rio-Tinto-Alcan, Carnot STAR Institute
Date Deposited: 20 Apr 2022 14:03
Last Modified: 21 Apr 2022 01:20
PolyPublie URL: https://publications.polymtl.ca/4889/
Document issued by the official publisher
Journal Title: APL Materials (vol. 2, no. 7)
Publisher: AIP Publishing
Official URL: https://doi.org/10.1063/1.4886221

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