Free Access
| Issue |
Microsc. Microanal. Microstruct.
Volume 5, Number 3, June 1994
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|---|---|---|
| Page(s) | 183 - 187 | |
| DOI | https://doi.org/10.1051/mmm:0199400503018300 | |
Microsc. Microanal. Microstruct. 5, 183-187 (1994)
DOI: 10.1051/mmm:0199400503018300
Beijing Laboratory of Electron Microscopy, Chinese Academy of Sciences, P.O. Box 2724, 100080 Beijing, P.R. China, and Laboratoire de Minéralogie-Cristallographie, Universités P. et M. (Paris VI) et Paris V, 75252 Paris Cedex 05, France
6170J - Etch pits, decoration, transmission electron microscopy and other direct observations of dislocations.
6140M - Structure of quasicrystals.
6220F - Deformation and plasticity.
Key words
aluminium alloys -- cobalt alloys -- deformation -- dislocations -- electron diffraction crystallography -- nickel alloys -- quasicrystals -- Al sub 70 Co sub 15 Ni sub 15 -- decagonal quasicrystal -- Bragg lines -- dislocation strain fields -- large angle convergent beam electron diffraction
© EDP Sciences 1994
DOI: 10.1051/mmm:0199400503018300
Effects of dislocation strain fields on Bragg lines in an Al70Co15Ni15 decagonal quasicrystal studied by an improved LACBED technique
Yanfa YanBeijing Laboratory of Electron Microscopy, Chinese Academy of Sciences, P.O. Box 2724, 100080 Beijing, P.R. China, and Laboratoire de Minéralogie-Cristallographie, Universités P. et M. (Paris VI) et Paris V, 75252 Paris Cedex 05, France
Abstract
Effects of dislocation strain fields on Bragg lines in an Al70Co15Ni15 decagonal quasicrystal have been studied by using an improved large-angle convergent-beam electron diffraction technique. It is found that the effects are the same as that in conventional crystals.
Résumé
Les effets induits par les champs de contraintes des dislocations sur les lignes de Bragg observées dans un quasicristal décagonal Al70Co15Ni15, ont été étudiés par une technique améliorée de diffraction électronique en faisceau convergent à grand angle. Il est montré que ces effets sont semblables à ceux observés dans des cristaux conventionnels.
6170J - Etch pits, decoration, transmission electron microscopy and other direct observations of dislocations.
6140M - Structure of quasicrystals.
6220F - Deformation and plasticity.
Key words
aluminium alloys -- cobalt alloys -- deformation -- dislocations -- electron diffraction crystallography -- nickel alloys -- quasicrystals -- Al sub 70 Co sub 15 Ni sub 15 -- decagonal quasicrystal -- Bragg lines -- dislocation strain fields -- large angle convergent beam electron diffraction
© EDP Sciences 1994