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MM: Fachverband Metall- und Materialphysik

MM 16: Microstructure and Phase Transformations III - Precipitaion hardening/ Alloying elements

MM 16.2: Vortrag

Montag, 31. März 2014, 16:00–16:15, IFW B

Analysis of The Melting Process of Indium Nanoparticles Embedded in An Aluminium Matrix — •Mostafa Mohamed, Martin Peterlechner, and Gerhard Wilde — Institute of Materials Physics, Münster,Germany

We have successfully prepared nanocrystalline particles Indium embedded in an Aluminum matrix by rapid quenching using the melt-spinning technique. The microstructures and the melting temperature and freezing of the embedded nanoparticles were investigated by transmission electron microscopy (TEM) and differential scanning calorimetry (DSC). The microstructure analysis exhibited two distributions of (In) particles embedded in the Al-matrix, one at the grain boundaries and the other within the Al matrix. DSC experiments have shown broad melting and crystallization peaks. The crystallization temperature of the embedded particles shifted to remarkable low temperature. Analyses of TEM images and DSC measurements were done to investigate the impact of the particle-matrix interface and interface modifications on the melting behavior of the embedded nanoparticles.