- Tytuł:
- Kinetics of "order-order" Relaxations in Ni$\text{}_{3}$Al Studied by Computer Simulation
- Autorzy:
-
Oramus, P.
Kozubski, R.
Cadeville, M. C.
Pierron-Bohnes, V.
Pfeiler, W. - Powiązania:
- https://bibliotekanauki.pl/articles/2011010.pdf
- Data publikacji:
- 1999-07
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
05.50.+q
05.20.Dd
66.30.-h
81.30.Hd - Opis:
- The experimental investigations of "order-order" kinetics in Ni$\text{}_{3}$ Al-based L1$\text{}_{2}$-ordered intermetallic compounds revealed the relaxation curves composed of two parallel processes considerably differing in relaxation rates. A simple Ising-type model based on a vacancy mechanism of atomic jumps was used to carry the Monte Carlo simulations of long-range-order relaxations in a binary A$\text{}_{3}$B system with L1$\text{}_{2}$-type superstructure. The simulated relaxation curves fitted weighted sums of two exponentials with significantly different relaxation times. It was found out that the fast relaxation process is controlled by the dynamics of the minority B-atom jumps.
- Źródło:
-
Acta Physica Polonica A; 1999, 96, 1; 153-160
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł