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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: Aluminium foams
Carbon nanotubes
Colloidal processing
Powder metallurgy
Issue Date: 2015
Publisher: Elsevier
Abstract: This paper presents an innovative approach to prepare a new class of closed cell reinforced (nano composite) metal foams that synergistically explore stheremarkablepropertiesofbothmetalfoamsand carbon nanotubes. This approach combines colloidal processing (includingfreezegranulationlyophili sation) and powder technology, ensuring there tention of the tubular structureo fCOOH functionalised multiwall carbonnanotubes(MWCNTsCOOH) and their uniform distribution in themetalmatrix.The microstructural analysis reveal ednonagglomerated, welldispersed, stretchedanddirection allyaligned MWCNTswithintheAlmatrixof the foams. These conditions potentiate the reinforcingroleofMWCNTs with Vickersmicrohardnessincrements 4100%.
Peer review: yes
DOI: 10.1016/j.matlet.2015.07.115
ISSN: 0167-577X
Appears in Collections:TEMA - Artigos
CICECO - Artigos
DEM - Artigos

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