Dispersion of CNTs in Aluminum 2024 Alloy by Milling Process

R. Pérez-Bustamante; F. Pérez-Bustamante; J. I. Barajas-Villaruel; J. Martin Herrera-Ramírez; Ivanovich Estrada-Guel; Patricia Amézaga-Madrid; Mario Miki-Yoshida; Roberto Martínez-Sánchez

doi:10.4028/www.scientific.net/MSF.691.27

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HomeMaterials Science ForumMaterials Science Forum Vol. 691Dispersion of CNTs in Aluminum 2024 Alloy by...

Dispersion of CNTs in Aluminum 2024 Alloy by Milling Process

Abstract:

Elemental powders and carbon nanotubes (CNTs) were mixed and milled in a high energy shaker mill (SPEX-8000M), to produce 2024 aluminum (Al₂₀₂₄) matrix composites reinforced with CNTs. Milled products were consolidated by uniaxial load pressing followed by pressure-less sintering under argon atmosphere for 2 h at 773 K. The effect of CNTs concentration and milling time on Vickers microhardness (µHV) was studied. Scanning electron microscopy (SEM) micrographs show that by milling process it is possible to obtain a homogeneous dispersion of CNTs into the aluminum matrix. The mechanical properties of the composites show an important improvement with respect to reference samples. The possible strengthening mechanisms are discussed in the present work.

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Periodical:

Materials Science Forum (Volume 691)

Pages:

27-31

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.691.27

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Online since:

June 2011

Authors:

R. Pérez-Bustamante, F. Pérez-Bustamante, J. I. Barajas-Villaruel, J. Martin Herrera-Ramírez, Ivanovich Estrada-Guel, Patricia Amézaga-Madrid, Mario Miki-Yoshida, Roberto Martínez-Sánchez

Keywords:

Aluminum (Al), Carbon Nanotube (CN), Mechanical Alloy, Micro-Hardness Test

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