Berlin 2012 – wissenschaftliches Programm
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MM: Fachverband Metall- und Materialphysik
MM 17: Poster Session
MM 17.25: Poster
Montag, 26. März 2012, 17:00–19:00, Poster B
Cooling rate dependence of undercooling of pure Sn single partially molten drop by fast scanning calorimetry — •Bin Yang1, Alexander Sasha Abyzov2, Evgeny Zhuravlev1, Yulai Gao3, Jürn W. P. Schmelzer1, and Christoph Schick1 — 1Institute of Physics, University of Rostock, Wismarsche Str. 43-45, 18051 Rostock, Germany — 2National Science Center, Kharkov Institute of Physics and Technology, 61108 Kharkov, Ukraine — 3Shanghai Key Laboratory of Modern Metallurgy & Materials Processing, Shanghai University, Shanghai 200072, P.R. China
The partial melting of a pure Sn single micron sized particle is successfully performed by non-adiabatic differential fast scanning calorimetry. In a large range of cooling rates spanning three orders of magnitude solidification undercooling is observed for the partially molten particle. The cooling rate dependence of undercooling is correspondingly investigated. Our data indicate that the kinetics of nucleation changes with decreasing cooling rate. The differential fast scanning calorimetry opens up the possibility to experimentally study the kinetics of nucleation and growth processes of single metallic particles at rapid solidification extending the theoretical analysis of these processes performed in previous studies.