Effect of annealing on the structural perfection of Al-Pd-Mn icosahedral quasicrystal grains

Authors
Mancini, L Letoublon, A Agliozzo, S Wang, J Gastaldi, J de Boissieu, M Hartwig, J Klein, H
Citation
L. Mancini et al., Effect of annealing on the structural perfection of Al-Pd-Mn icosahedral quasicrystal grains, MAT SCI E A, 294, 2000, pp. 57-60
Citations number
20
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
294
Year of publication
2000
Pages
57 - 60
Database
ISI
SICI code
0921-5093(200012)294:<57:EOAOTS>2.0.ZU;2-C
Abstract
The effect of annealing (up to 750 degreesC) on the structural perfection o f stable quasicrystals has been studied, for the first time, in large grain s of the icosahedral Al-Pd-Mn phase. This study was performed by combined s ynchrotron X-ray diffractometry and imaging techniques. It has revealed tha t the quasicrystalline quality improves as long as no precipitates are form ed. The improvement was mainly ascribed to the relaxation of the strain fie ld around voids, which are often observed in quasicrystals after growth. (C ) 2000 Elsevier Science B.V. All rights reserved.