A family of hexagonal approximants of decagonal quasicrystals

Authors
Citation
Zm. Mo et Kh. Kuo, A family of hexagonal approximants of decagonal quasicrystals, MAT SCI E A, 294, 2000, pp. 242-245
Citations number
14
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
242 - 245
Database
ISI
SICI code
0921-5093(200012)294:<242:AFOHAO>2.0.ZU;2-I
Abstract
By means of high resolution electron microscopy, the hexagonal phases with about the same c = 12.4-12.6 Angstrom but different a parameters (kappa :17 .674 Angstrom; lambda :28.382 Angstrom; upsilon :40.687 Angstrom) in Al-ric h Al-TM (TM: transitional metal) alloys were found to consist of similar ic osahedral cluster of about 30 Angstrom in size. Using the known atomic site s of kappa and lambda in this cluster, the crystal structure of upsilon was solved by direct methods of X-ray diffraction analysis. Various icosahedra l connections in this: cluster were analyzed. (C) 2000 Elsevier Science B.V . All rights reserved.