title: Effects of strontium impurity on the structure and dynamics of Al88Si12 liquid.
abstract: The effects of strontium modification on the structure and dynamics of Al88Si12 liquid are studied by means of ab initio molecular dynamics simulations. By replacing 0.5% and 4.0% of Al with Sr, we show that the addition of Sr lowers the self-diffusion of Al and Si of the liquid and reduces the nearest-neighbor correlation between Si atoms. The simulation provides an explanation for the change in morphology of the eutectic phases observed in rapidly solidified Al-Si alloys modified with Sr.
authors.affiliation: Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai 200433, People's Republic of China.
authors.forename: G Q
authors.initials: GQ
authors.lastname: Yue
authors.forename: S
authors.initials: S
authors.lastname: Wu
authors.forename: B
authors.initials: B
authors.lastname: Shen
authors.forename: S Y
authors.initials: SY
authors.lastname: Wang
authors.forename: C Z
authors.initials: CZ
authors.lastname: Wang
authors.forename: K M
authors.initials: KM
authors.lastname: Ho
authors.forename: M J
authors.initials: MJ
authors.lastname: Kramer
authors.forename: L Y
authors.initials: LY
authors.lastname: Chen