In recent years, graphene nanoplatelets have attracted considerable research interest in all fields of science due to their unique properties. Their excellent mechanical properties lead it to be used in nano-composites for strength enhancement. Though CNT/Al composites are widely investigated, uniform dispersion of CNTs is still a big challenge for the researchers ,which prohibits its use in practical applications. Graphene nanoplatelets(GNPs) can be dispersed in all kinds of solvents and matrices easily as compared to CNTs. Our novel nano-processing route is free of ball milling. As ball milling is considered a big problem because it produces heat, which can burn powder easily and damage the structure of GNPs or CNTs as well. Therefore, our method can be an alternative of ball milling and it has a great potential for the synthesis of Al based matrix nano-composite which is considered good for engineering applications. In this paper, Al-0.5wt.% GNPs composite powders were successfully produced free from dispersion problems associated with GNPs. The SEM analysis of the as-produced composite powders indicate that the GNPs in aluminium powders is quite well dispersed. The effect of GNPs on the hardness of the composite was evaluated by Vickers hardness.

A Novel Technique to Homogeneously Disperse Graphene Nanoplateletes (GNPs) in Aluminium Matrix / Saboori, Abdollah; Pavese, Matteo; Fino, Paolo; Badini, CLAUDIO FRANCESCO; Mourghorban, P.. - ELETTRONICO. - (2015). (Intervento presentato al convegno Euro PM2015 Congress and Exhibition tenutosi a Reims Congress Centre, Reims, France nel 4 - 7 October 2015).

A Novel Technique to Homogeneously Disperse Graphene Nanoplateletes (GNPs) in Aluminium Matrix

SABOORI, ABDOLLAH;PAVESE, MATTEO;FINO, Paolo;BADINI, CLAUDIO FRANCESCO;
2015

Abstract

In recent years, graphene nanoplatelets have attracted considerable research interest in all fields of science due to their unique properties. Their excellent mechanical properties lead it to be used in nano-composites for strength enhancement. Though CNT/Al composites are widely investigated, uniform dispersion of CNTs is still a big challenge for the researchers ,which prohibits its use in practical applications. Graphene nanoplatelets(GNPs) can be dispersed in all kinds of solvents and matrices easily as compared to CNTs. Our novel nano-processing route is free of ball milling. As ball milling is considered a big problem because it produces heat, which can burn powder easily and damage the structure of GNPs or CNTs as well. Therefore, our method can be an alternative of ball milling and it has a great potential for the synthesis of Al based matrix nano-composite which is considered good for engineering applications. In this paper, Al-0.5wt.% GNPs composite powders were successfully produced free from dispersion problems associated with GNPs. The SEM analysis of the as-produced composite powders indicate that the GNPs in aluminium powders is quite well dispersed. The effect of GNPs on the hardness of the composite was evaluated by Vickers hardness.
2015
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2647453
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