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2. Nanoparticles have been increasingly used in functional and composite materials. One of the challenges, however, has been dispersing and controlling the nanoparticle clusters. In this study, the deposition of SiC nanoparticles via ultrasonic spraying process was investigated for a potential application in synthesis of laminate metal composites. The 18 governing parameters of the ultrasonic spraying process which includes suspension and 19 spraying parameters, and their influence on the deposited structure have been investigated. 20 These parameters determine the driving force that transports the atomized droplets to the 21

A composite made of graphene and aluminum is a promising material for many engineering applications due to its lightweight and relatively high strength properties. Unfortunately, the uniform dispersion of the graphene is considered one of the big challenges since the graphene clusters tend to deteriorate the mechanical properties of the composite. In this study, a graphene reinforced Al6061 composite has been investigated. The composites are fabricated by ball milling the graphene flakes and the Al6061 powder, followed by hot compaction in the semi-solid regime of the Al6061. In addition, a graphene reinforced composite with localized reinforced zones within the composite was also investigated The mechanical properties of the composites are measured by conducting a bend test, and microstructural analysis of the composite and fracture surfaces are performed. According to the bending test results, an enhancement in the strength is clearly observed.