Dynamics of superstructure formation in intermetallic compounds

Autor:	M. Kozłowski, R. Kozubski, K. Zapała, S. Czekaj, E. Partyka
Rok vydání:	2004
Předmět:	Materials science Mechanical Engineering Diffusion Kinetics Metals and Alloys Intermetallic Crystal structure Experimental research Crystallography Mechanics of Materials Chemical physics Vacancy defect Materials Chemistry Thermal analysis Superstructure (condensed matter)
Zdroj:	Journal of Alloys and Compounds. 378:302-307
ISSN:	0925-8388
DOI:	10.1016/j.jallcom.2003.11.168
Popis:	Experimental research of “order–order” kinetics in binary intermetallics showing highly stable superstructures revealed that specific features of “order–order” relaxations are attributed to the type of superstructure. Corresponding simulation studies elucidated specific atomistic mechanisms of the processes. It has been shown that two time scales revealed experimentally in “order–order” relaxations in L1 2 and L1 0 -ordered systems follow from an interplay between ordering/disordering and the easy diffusion of antisites within one sublattice. In triple-defect B2-ordered intermetallics, strict correlation between ordering/disordering and vacancy elimination/formation dramatically slows down the process despite very high vacancy concentration.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9af7b73e00eb6189302e8583e89bcc31 https://doi.org/10.1016/j.jallcom.2003.11.168 Zobrazit plný text záznamu Full Text from ScienceDirect