- Tytuł:
- Positron Annihilation in Solid and Liquid Bi$\text{}_{40}$Sn$\text{}_{60}$ Alloy
- Autorzy:
-
Chabik, St.
Rudzińska, W.
Szuszkiewicz, M.
Szymański, Cz. - Powiązania:
- https://bibliotekanauki.pl/articles/2007925.pdf
- Data publikacji:
- 1999-04
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
64.70.Dv
61.72.Cc
78.70.Bj - Opis:
- The peak counting rate, F(T), for Bi$\text{}_{40}$Sn$\text{}_{60}$ alloy in the temperature range from room temperature to 400°C was measured in three consecutive heating-cooling runs. Significant changes in F(T) were observed in the temperature interval between the solidus and liquidus temperature. The magnitude of these anomalies systematically diminishes in consecutive heating-cooling runs. Noticeable changes of values of F(T) parameter in the liquid alloy were observed, too. These effects were connected with trapping of positrons at the grain boundaries-defects and in the short-range ordered regions in the liquid alloy. Also microscopic structure of sample before and after measurements cycles was observed.
- Źródło:
-
Acta Physica Polonica A; 1999, 95, 4; 479-482
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł