In situ study of structural transformations of Mg44Al15Zn41 quasicrystals under heating

Citation
Bb. Bokhonov et al., In situ study of structural transformations of Mg44Al15Zn41 quasicrystals under heating, MAT SCI E A, 278(1-2), 2000, pp. 236-241
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN journal
09215093 → ACNP
Volume
278
Issue
1-2
Year of publication
2000
Pages
236 - 241
Database
ISI
SICI code
0921-5093(20000215)278:1-2<236:ISSOST>2.0.ZU;2-H
Abstract
Structural transformations under annealing of quasicrystalline Mg44Al15Zn41 below 613 K showed that the quasicrystalline constant a(R) was increased b y about 0.0019 nm. The phase transformation at 613 K from the quasicrystall ine structure to the 2/1 cubic approximant is reversible and has a topotact ic character. The 2/1 approximant phase formed during this transformation i s metastable and decomposes irreversibly above 693 K. (C) 2000 Elsevier Sci ence S.A. All rights reserved.