2016
DOI: 10.1177/0021998316658784
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Mechanical properties and interfacial phenomena in aluminum reinforced with carbon nanotubes manufactured by the sandwich technique

Abstract: Recently, a new manufacturing process for the production of metallic matrix composite materials reinforced with carbon nanotubes, known as sandwich technique has been proposed. This technique produces a material comprised of a metallic matrix and a banded structures-layers of multi-walled carbon nanotubes. However, among other issues, the matrix-reinforcement interface and the reinforcement dispersion degree are still open questions. The present study uses field emission scanning electron microscopy and high r… Show more

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Cited by 19 publications
(5 citation statements)
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“…The applications of CNTs in aluminum metal composites (AMCs) for overcoming the performance limits of conventional materials have been increasingly reported 7,10,11 . This is due to the CNTs capabilities for an effective load transfer from the aluminum matrix during mechanical testing, product of their homogeneous dispersion into the aluminum matrix.…”
Section: Introductionmentioning
confidence: 99%
“…The applications of CNTs in aluminum metal composites (AMCs) for overcoming the performance limits of conventional materials have been increasingly reported 7,10,11 . This is due to the CNTs capabilities for an effective load transfer from the aluminum matrix during mechanical testing, product of their homogeneous dispersion into the aluminum matrix.…”
Section: Introductionmentioning
confidence: 99%
“…The results show that the CNTs and the aluminum matrix have a distinct layer, and the combination interface is flat and regular. No agglomeration or damage occurs, but there are several pores between the interlayers, as shown in Figures 5b and 5c [31]. However, Liu et al [24] used the friction stir method in combination with the hot rolling process to mix and stir the CNTs and the aluminum powder b) a) into a billet and then performed friction stir and hot rolling, as shown in Figure 6.…”
Section: Mechanical Bonding Interfacementioning
confidence: 99%
“…Para la síntesis del material compuesto de matriz metálica se usaron nanotubos de carbono de pared múltiple, siguiendo el proceso de caracterización detallado por Isaza et al [18], donde los nanotubos fueron dispersos en una matriz polimérica de alcohol polivinílico (PVA por sus siglas en inglés) para finalmente ser usados en la matriz metálica [19]. Para la dispersión de los CNTs, primero se diluyó el PVA en agua destilada y durante este proceso los CNTs fueron adicionados en porcentajes de 0.25, 0.5 y 1.0.…”
Section: Síntesis Del Materials Compuesto De Matriz Metálicaunclassified
“…El aumento de las propiedades mecánicas del compuesto se da por varios mecanismos tales como: reducción del tamaño de grano debido al nanotubo de carbono, generación y bloque de dislocaciones en las zonas cercanas al refuerzo y por supuesto, la acción del refuerzo [4], [7], [18], [21]. Según el aumento de las propiedades mecánicas y en especial la dureza, los coeficientes de fricción del sistema metal reforzado-metal muestran un comportamiento similar para cada uno de los materiales estudiados, es decir, sus cambios no son significativos; sin embargo, para la muestra reforzada con 1% en peso encontramos un aumento del coeficiente de fricción lo que evidencia adhesión entre el pin y el disco, esto debido a una deformación plástica sufrida por el disco durante el ensayo [23].…”
Section: Caracterización Microestructural Del Materials Compuestounclassified