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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Author(s)
Marcos Allan Leite dos Reis1*, Elizabeth M. S. Rodrigues2, Jordan Del Nero2, Sónia Simões3, Filomena Viana3, Manuel F. G. Vieira3 and Maria T. F. Vieira4
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DOI:10.17265/2161-6221/2015.7-8.009
Affiliation(s)
1. Faculty of Exact Science and Technology, Federal University of Pará, Abaetetuba, PA 68440-000, Brazil
2. Institute of Exact Science, Federal University of Pará, Belém, PA 68440-000, Brazil
3. CEMUC, Faculty of Engineering of the University of Porto (FEUP), University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
4. CEMUC, Department of Mechanical Engineering, Universidade of Coimbra, Pinhal de Marrocos, 3030-788, Coimbra, Portugal
ABSTRACT
The nanocomposite based on carbon nanotubes/aluminum (CNT/Al) was one-step prepared by the DC arc discharge method under an argon/acetone mixed atmosphere. Synthesis was performed by arc plasma on a pure graphite rod, filled by aluminum powder as an anode and aluminum plate as a cathode. Discharge conditions of 85 A and 20 V were used at a pressure range of 375 to 750 Torr. The CNT/Al was characterized by Scanning Electron Microscopy with Energy Dispersive Spectroscopy; Transmission Electron Microscopy; Laser Diffraction Particle Size Analysis; X-Ray Diffraction; Raman Spectroscopy; Thermogravimetric Analysis; and, its reinforcement effect of the CNTs on the aluminum matrix was measured by Vickers microhardness test. This nanocomposite shows agglomerates of multiwalled carbon nanotubes filled with Al4C3 and blended with aluminum particles; moreover, in the nanocomposites was found a hardness increase of 40% for nanocomposites with 1.0 wt.% of CNT/Al.
KEYWORDS
One-step synthesis, CNT/Al nanocomposite, reinforcement effect.
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