| Issue |
MATEC Web of Conferences
Volume 7, 2013
JA 2013 – Journées Annuelles de la SF2M 2013 / SF2M Annual Meeting 2013
|
|
|---|---|---|
| Article Number | 01002 | |
| Number of page(s) | 3 | |
| Section | Colloque 1 : Matériaux pour le Transport / Materials for Transportation | |
| DOI | https://doi.org/10.1051/matecconf/20130701002 | |
| Published online | 07 November 2013 | |
Characterization of Al/MWCNTs composites prepared by powder metallurgy routes
1 Unité Matériaux et Transformations, UMR CNRS 8207, Université Lille1, 59655 Villeneuve d'Ascq, France
2 Laboratoire des Sciences des procédés et des Matériaux, Université Paris 13, Institut Galilée, 99 Av. J.B. Clément, 93430 Villetaneuse, France
Aluminum (Al) matrix composite reinforced with 0.5% in weight of multi-walled carbon nanotubes (MWCNTs) are synthetized by powder metallurgy. Spark plasma sintering (SPS) or hot pressing (HP) are used to obtain fully dense materials. Moreover, particular attention is given to the powder preparation in order to uniformly disperse the nanotubes within the metal matrix. To that end, successive mechanical and chemical treatments are applied to MWCNTs. These treatments are described here. The dispersion improvement is assessed by composite micro-hardness measurements which reveal an increase of about 25% compared to pure Al. Furthermore the microstructure study highlights the formation of a complex phase at grain boundaries. The CNT dispersion process optimization combined to the mechanical properties and microstructure investigations should allow a better understanding of the reinforcement mechanisms in this composite.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.