Metal substitution in electrical wires by materials with high conductivity like carbon nanotubes (CNT) is interesting for short term applications in avionic and space thanks to the huge benefit of such wiring in term of mass. Indeed such wires will significantly improve the energy consumption of planes for example. Individual performances of CNTs can be better than the copper one. However, the electrical conductivity of CNT wires still remains lower than the metal ones. The objective of this thesis is to understand and overcome to date limitations of macroscopic assembly of CNTs in electrical cables in order to reach conductivity close to metal like copper or aluminum. To do that optimized CNT growth process and cable assembly will be developed. To understand the link between nanomaterial and macroscopic performances of doped and non-doped wires, electrical characterization of the cables with temperature (3K-350K) will be performed in order to develop a physical transport model of the cable. The model will be correlated with the nano properties of CNTs (morphology by transmission electronic microscopy, defects by Raman spectroscopy…) and to the cable microstructure. Ultimately demonstration of improved electrical conduction is expected.

SL-DRT-16-0587

LOCATION

Département des Technologies des NanoMatériaux (LITEN) Service Elaboration des Nanomatériaux Laboratoire des Surfaces Nanostructurées Centre : Grenoble Date souhaitée pour le début de la thèse : 01-10-2016

CONTACT PERSON

Jérôme FAURE-VINCENT CEA DSM/INAC/SPrAM/LEMOH CEA Grenoble INAC/SPrAM/LEMOH 17, rue des Martyrs F-38054 Grenoble Cedex 9 Téléphone : 04 38 78 34 09 Email : jerome.faure-vincent@cea.fr

UNIVERSITY / GRADUATE SCHOOL

Grenoble INP IMEP2: Ingénierie - Matériaux - Environnement - Energétique - Procédés - Production

THESIS SUPERVISOR

Jean DIJON DRT/DTNM//LNS CEA/GRENOBLE