An analysis of fivefold symmetry by microtwinning in rapidly solidified Al-Mn alloys
Author:
- 15 February 1986
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 59 (4) , 1063-1067
Abstract
The properties of small ensembles of cyclically twinned, rhombohedrally distorted face-centered-cubic crystals are examined and shown to be consistent with reported experimentally determined diffraction patterns and images of rapidly solidified Al-Mn alloys exhibiting icosahedral symmetry. Limitations of previously reported refutations of twinning models are discussed. Proposals are made for definitive tests between microtwinning and quasicrystalline models of these structures.Keywords
This publication has 12 references indexed in Scilit:
- Electron microscopy of quasi-crystals in rapidly solidified Al-14% Mn alloysScripta Metallurgica, 1985
- The microstructure of rapidly solidified Al6MnMetallurgical Transactions A, 1985
- Precipitates possessing icosahedral symmetry in a rapidly solidified AlMn alloyMaterials Science and Engineering, 1985
- Quasicrystals: A New Class of Ordered StructuresPhysical Review Letters, 1984
- Metallic Phase with Long-Range Orientational Order and No Translational SymmetryPhysical Review Letters, 1984
- On periodic and non-periodic space fillings ofEmobtained by projectionActa Crystallographica Section A Foundations of Crystallography, 1984
- Surface structure and energetics of multiply twinned particlesPhilosophical Magazine A, 1984
- Crystallography of decahedral and icosahedral particlesJournal of Crystal Growth, 1979
- Crystallography of decahedral and icosahedral particlesJournal of Crystal Growth, 1979
- The structure of small, vapor-deposited particlesJournal of Crystal Growth, 1979