Graphene nanoplatelets reinforced Mg matrix composite with enhanced mechanical properties by structure construction
Publication date: Available online 17 July 2018Source: Materials Science and Engineering: AAuthor(s): Linglong Meng, Xiaoshi Hu, Xiaojun Wang, Chunlei Zhang, Hailong shi, Yeyang Xiang, Nanjia Liu, Kun WuAbstractBalanced strength and toughness are essential elements for application of metal matrix composites and can be realized through structure construction. In this work, graphene nanoplatelets (GNPs) reinforced magnesium laminated composites were fabricated. The composites with 0.25 vol% and 0.75 vol% GNPs exhibit tensile strength of 160 MPa and 179 MPa, respectively (136 MPa for pure Mg). Homogeneously dispersed GNPs promotes the load transfer capacity and constrains the transformation of Mg foils to monolithic materials. The induced laminated structure prohibits the dislocation motion and strengthens the composites. The prolonged crack pathway by laminated structure also maintains the elongation to an appreciable level.
Source: Materials Science and Engineering: A - Category: Materials Science Source Type: research