Journal
Article title
Title variants
Languages of publication
Abstracts
The experimental investigations of "order-order" kinetics in Ni_{3} Al-based L1_{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_{3}B system with L1_{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.
Discipline
- 81.30.Hd: Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder
- 05.20.Dd: Kinetic theory(see also 51.10.+y Kinetic and transport theory of gases)
- 05.50.+q: Lattice theory and statistics (Ising, Potts, etc.)(see also 64.60.Cn Order-disorder transformations, and 75.10.Hk Classical spin models)
- 66.30.-h: Diffusion in solids(for surface and interface diffusion, see 68.35.Fx)
Journal
Year
Volume
Issue
Pages
153-160
Physical description
Dates
published
1999-07
Contributors
author
- Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland
author
- Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland
author
- GEMME, I.P.C.M.S., 23 rue du Loess, 67037 Strasbourg, France
author
- GEMME, I.P.C.M.S., 23 rue du Loess, 67037 Strasbourg, France
author
- Institut für Materialphysik, Universität Wien, Strudlhofgasse 4, 1090 Wien, Austria
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv96z113kz