Influence of Carbon Nanotubes Dispersion on Thermal Properties of Copper-Carbon Nanotubes (CNTs) Composite Materials
VALLET, Guy-Marie
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Labinal Power Systems
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Labinal Power Systems
VALLET, Guy-Marie
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Labinal Power Systems
< Réduire
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Labinal Power Systems
Langue
en
Article de revue
Ce document a été publié dans
Universal Journal of Materials Science. 2015, vol. 3, n° 4, p. 55-61
Horizon Research publishing corporation
Résumé en anglais
In this present work, two methods for dispersing carbon nanotubes into the copper matrix were tested: a Solid Route process where CNTs are simply mixed with the copper powder and a Liquid Route process where CNTs are ...Lire la suite >
In this present work, two methods for dispersing carbon nanotubes into the copper matrix were tested: a Solid Route process where CNTs are simply mixed with the copper powder and a Liquid Route process where CNTs are dispersed in a copper salt solution and then mixed with the metallic copper powder. Powders are sintered by uni-axial hot pressing process under vacuum atmosphere at 650°C and thermal conductivities of composite materials were measured using the laser flash method. Results are compared with a theoretical model of Nan et al. which enables to predict the thermal conductivity of materials containing CNTs. Comparison of experimental and theoretical results tends to prove that CNTs are 2D-randomly dispersed in a plane perpendicular to the pressing direction during uni-axial hot pressing process. Moreover, an increase of +7% of the thermal conductivity is shown for the composite material containing 1 vol. % of CNTs into the copper matrix.< Réduire
Mots clés en anglais
Thermal Conductivity
Thermal Properties
Composite Materials
Powder Metallurgy
Origine
Importé de halUnités de recherche