| Numéro |
J. Phys. IV France
Volume 06, Numéro C2, Mars 1996
38éme Colloque de Métallurgie de l'INSTNLes intermétalliques : des superalliages aux quasicristaux |
|
|---|---|---|
| Page(s) | C2-71 - C2-76 | |
| DOI | https://doi.org/10.1051/jp4:1996210 | |
38éme Colloque de Métallurgie de l'INSTN
Les intermétalliques : des superalliages aux quasicristaux
J. Phys. IV France 06 (1996) C2-71-C2-76
DOI: 10.1051/jp4:1996210
1 Laboratoire L. Brillouin, CE Saclay, France
2 IFF Universität Wien, Austria
3 CECM-CNRS, 15 rue G. Urbain, 94407 Vitry, France
© EDP Sciences 1996
Les intermétalliques : des superalliages aux quasicristaux
J. Phys. IV France 06 (1996) C2-71-C2-76
DOI: 10.1051/jp4:1996210
Etude des sauts atomiques dans les quasi-cristaux
S. Lyonnard1, G. Coddens1, B. Sepiol2, R. Bellissent1 and Y. Calvayrac31 Laboratoire L. Brillouin, CE Saclay, France
2 IFF Universität Wien, Austria
3 CECM-CNRS, 15 rue G. Urbain, 94407 Vitry, France
Abstract
We present here new results on phason dynamics (atomic hopping) in quasi-crystals. An iron jump has been observed by spectroscopy Mössbauer in the system AlFeCu. Its relaxation time is very different from the one of the 3.9 Å Cu jump previously determined by neutron scattering. Two distinct atomic jump times have also been observed by neutron scattering in the system AlMnPd. They exhibit the same unusual temperature dependence as the Cu one, such that it seems to be universal.
© EDP Sciences 1996