Graphene reinforced aluminum matrix composite obtaining by powder metallurgy
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Universidad Santo Tomás. Seccional Bucaramanga
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Varios investigadores han reportado el grafeno como un refuerzo ideal para materiales compuestos debido a sus interesantes propiedades [1]. El material compuesto de matriz de aluminio reforzado con grafeno se fabricó por procesos de pulvimetalurgia. En este estudio se investigó el efecto de la morfología del polvo de aluminio sobre la capacidad de compactación y la resistencia mecánica del material compuesto. Se utilizaron diferentes tiempos de molienda para determinar el tiempo óptimo requerido en la fabricación. Se determinó la carga de compactación adecuada variando sus valores y analizando el efecto de las diferentes cargas en las características del material. Se establecieron los parámetros de sinterizado de acuerdo con los estudios previos empleados por otros investigadores. Finalmente, se determina que con 0.5% wt de grafeno se presentan fenómenos de refinamiento del grano y mayor conductividad eléctrica del compuesto con respecto al aluminio pulvimetalúrgico.
Several researchers have reported graphene as an ideal reinforcement for composite materials due to its interesting properties [1]. The graphene-reinforced aluminium matrix composite material was obtaining by powder metallurgy. This study investigated the effect of aluminum powder morphology on compaction capacity and mechanical strength of composite material. Different milling times were used to determine the optimal time required in manufacturing. The proper compaction load was determined change its values and analyzing the effect of the different loads on the characteristics of the composite. Sintering parameters were established according to previous studies employed by other researchers. Finally, it is determined that with 0.5% wt graphene presents phenomena of grain refinement and higher electrical conductivity of the compound with respect to powder metallurgical aluminum.
Several researchers have reported graphene as an ideal reinforcement for composite materials due to its interesting properties [1]. The graphene-reinforced aluminium matrix composite material was obtaining by powder metallurgy. This study investigated the effect of aluminum powder morphology on compaction capacity and mechanical strength of composite material. Different milling times were used to determine the optimal time required in manufacturing. The proper compaction load was determined change its values and analyzing the effect of the different loads on the characteristics of the composite. Sintering parameters were established according to previous studies employed by other researchers. Finally, it is determined that with 0.5% wt graphene presents phenomena of grain refinement and higher electrical conductivity of the compound with respect to powder metallurgical aluminum.
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Powder metallurgy, metal matrix, composite material, graphene, Pulvimetalurgia, matriz metálica, material compuesto, grafeno
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