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MM: Fachverband Metall- und Materialphysik

MM 49: Nanomaterials II: Synthesis

MM 49.1: Talk

Thursday, March 10, 2016, 10:15–10:30, H39

SOLIDIFICATION BEHAVIOUR OF INDIUM DROPLETS EMBEDDED IN AN ALUMINIUM MATRIX — •Mostafa Mohaned, Martin Peterlechner, and Gerhard Wilde — Institute of Materials Physics,Münster,Germany

A hypomonotectic alloy of Al- 0.5-4 at% In has been manufactured by the melt-spinning technique. The microstructures of the embedded nanoparticles were investigated by transmission electron microscopy (TEM). As-melt spun alloy of Al-In consists of a homogeneous distribution of faceted particles formed during the monotecitc solidification reaction.

The In nano-particles show a cube-cube orientation relationship with the surrounding Al-matrix. The kinetics of In particles solidification have been examined by heating and cooling experiments in a differential scanning calorimetry (DSC) over a range of heating and cooling rates. Analyses of the nucleation kinetics of In particles solidification have been performed in the frame of the classical spherical cap model of heterogeneous nucleation.