TY  - JOUR
AB  - © 2014 Elsevier Ltd. Due to a high propensity of nano-particles to agglomerate, making aluminium matrix composites with a uniform dispersion of the nano-particles using liquid routes is an exceptionally difficult task. In this study, an innovative approach was utilised to prevent agglomeration of nano-particle by encapsulating SiC nano-particles using graphene sheets during ball milling. Subsequently, the milled mixture was incorporated into A356 molten alloy using non-contact ultrasonic vibration method. Two different shapes for graphene sheets were characterised using HRTEM, including onion-like shells encapsulating SiC particles and disk-shaped graphene nanosheets. This resulted in 45% and 84% improvement in yield strength and tensile ductility, respectively. The former was ascribed to the Orowan strengthening mechanism, while the latter is due primarily to the fiber pull-out mechanism, brought about by the alteration of the solidification mechanism from particle pushing to particle engulfment during solidification as a consequence of high thermal conductive graphene sheets encapsulating SiC particles.
AU  - Fadavi Boostani, A
AU  - Tahamtan, S
AU  - Jiang, ZY
AU  - Wei, D
AU  - Yazdani, S
AU  - Azari Khosroshahi, R
AU  - Taherzadeh Mousavian, R
AU  - Xu, J
AU  - Zhang, X
AU  - Gong, D
DA  - 2015/01/01
DO  - 10.1016/j.compositesa.2014.10.010
EP  - 163
JO  - Composites Part A: Applied Science and Manufacturing
PY  - 2015/01/01
SP  - 155
TI  - Enhanced tensile properties of aluminium matrix composites reinforced with graphene encapsulated SiC nanoparticles
VL  - 68
Y1  - 2015/01/01
Y2  - 2026/07/15
ER  -