Investigation, of Solid-Liquid Phase Transition for Sn-54wt%In Alloy by Positron Anihilation Spectroscopy |
| St. Chabika, M. Szuszkiewiczaa,b and W. Rudzińskaa aInstitute of Physics, University of Opole, Oleska 48, 45-052 Opole, Poland bInstitute of Experimental Physics, University of Wrocław, M. Borna 9, 50-204 Wrocław, Poland |
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| The peak coincidence counting rate F(T) was measured for Sn-54wt%In alloy at the temperature range from room temperature to 400°C. It was observed that for both heating and cooling run, F(Τ) parameter changes in the liquid phase. These changes were related to disintegration of SnII microcrystals. From a simple trapping model the defect disintegration enthalpy, H1, was calculated. For heating and cooling run, the value of H1 was 0.53 ± 0.03 eV and 0.67 ± 0.07 eV, respectively. For well-annealed and cold rolled samples we find only one component, equal 200 ps, in the lifetime spectrum. |
| DOI: 10.12693/APhysPolA.88.97 PACS numbers: 64.70.Dv, 61.72.Cc, 78.70.Bj. |