Formation rule for Al-based ternary quasi-crystals: Example of Al-Ni-Fe decagonal phase

Citation
Jb. Qiang et al., Formation rule for Al-based ternary quasi-crystals: Example of Al-Ni-Fe decagonal phase, J MATER RES, 16(9), 2001, pp. 2653-2660
Citations number
31
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS RESEARCH
ISSN journal
0884-2914 → ACNP
Volume
16
Issue
9
Year of publication
2001
Pages
2653 - 2660
Database
ISI
SICI code
0884-2914(200109)16:9<2653:FRFATQ>2.0.ZU;2-F
Abstract
After examining ternary Al-based quasi-crystalline phase diagrams, we point ed out that the presence of e/a-constant and e/a-variant lines is a common phenomenon. Ternary quasi-crystal compositions are located at the crossing point of these lines in ternary phase diagrams. Such an empirical rule can be used to predict the ternary quasi-crystal compositions from binary ones. We applied this rule to the Al-Fe-Ni system and clarified the decagonal ph ase composition zone. There are two decagonal phases, D-Al72.5Fe14.5Ni13 an d D'-Al705Fe12Ni17.5, that correspond respectively to Al-Fe-based and Al-Ni -based decagonal phases in the same ternary system.