Dresden 2020 – scientific programme

The DPG Spring Meeting in Dresden had to be cancelled! Read more ...

Parts | Days | Selection | Search | Updates | Downloads | Help

MM: Fachverband Metall- und Materialphysik

MM 5: Liquid and Amorphous Metals - Kinetics and Modelling

MM 5.2: Talk

Monday, March 16, 2020, 10:30–10:45, IFW D

Kinetics of nucleation in undercooled binary and glass forming alloys — •Manoel W. da Silva Pinto, Mirko Gabski, Martin Peterlechner, and Gerhard Wilde — Institute of Materials Physics, WWU Münster, Deutschland

The undercooling and nucleation behavior of alloys was quantitatively analyzed via a statistical analysis that describes nucleation as a non-homogeneous Poisson process. The statistical analysis of calorimetric data, previously applied to pure metals and metalloids, was now applied to binary Cu-Ge alloys, and to two glass-forming systems: Au-Si and Pd-Ni-P. The results enable the discussion on nucleation of binary and ternary mixtures in the framework of a concentration dependency of nucleation rates and glass forming ability. The presented results suggest a change in nucleation behavior already at small concentration variations. Such variations are not considered in the current classical nucleation theory used to describe the kinetics of nuclei formation in binary mixtures or glass forming alloys.