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Title: A novel approach to prepare aluminium-alloy foams reinforced by carbon-nanotubes
Author: Duarte, Isabel
Ventura, Eduardo
Olhero, Susana
Ferreira, Jose M. F.
Keywords: Mechanical proprerties
Matrix composites
Issue Date: 2015
Publisher: Elsevier
Abstract: This paper presents an innovative approach to prepare a new class of closed-cell reinforced (nanocomposite) metal-foams that synergistically explores the remarkable properties of both metal-foams and carbon-nanotubes. This approach combines colloidal-processing (including freeze-granulation-lyophilisation) and powder technology, ensuring the retention of the tubular-structure of -COOH-functionalised multiwall carbon nanotubes (MWCNTs-COOH) and their uniform distribution in the metal-matrix. The microstructural analysis revealed non-agglomerated, well-dispersed, stretched and directionally-aligned MWCNTs within the AI-matrix of the foams. These conditions potentiate the reinforcing role of MWCNTs with Vickers microhardness increments > 100%. (C) 2015 Elsevier B.V. All rights reserved.
Peer review: yes
DOI: 10.1016/j.matlet.2015.07.115
ISSN: 0167-577X
Publisher Version: 10.1016/j.matlet.2015.07.115
Appears in Collections:TEMA - Artigos
CICECO - Artigos
DEM - Artigos

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