Abstract
The possibility of synthesis of quasicrystalline and associated approximant phases during mechanical alloying and subsequent heat treatment of Al 65 Cu 20 Fe 10 Si 5 alloy powders has been investigated. It is shown that, in addition to the stable ordered quasicrystal and 1/1 cubic approximant, two more phases having orthorhombic symmetry coexist. The a and c parameters of both these phases are similar to the lattice parameters of the cubic approximant, whereas their b parameters are, respectively, three and four times larger than the c parameters. It is suggested that these phases evolve on account of local symmetry breaking of the cubic approximant phase, possibly due to ordering.
Original language | English |
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Pages (from-to) | 425-433 |
Number of pages | 9 |
Journal | Philosophical Magazine Letters |
Volume | 86 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2006 Jul 1 |
Bibliographical note
Funding Information:This work is supported by Creative Research Initiatives of the Korean Ministry of Science and Technology.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics