| 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) | C2-259 - C2-262 | |
| DOI | https://doi.org/10.1051/jp4:1996237 | |
38éme Colloque de Métallurgie de l'INSTN
Les intermétalliques : des superalliages aux quasicristaux
J. Phys. IV France 06 (1996) C2-259-C2-262
DOI: 10.1051/jp4:1996237
1 ONERA, BP 72, 92322 Châtillon cedex, France
2 CTM-CNRS, 26 rue du 141è RIA, 13003 Marseille, France
3 LM-CNRS, case 511, Faculté St Jérôme, 13397 Marseille, France
4 LSG2M-CNRS, Ecole des Mines, 54042 Nancy cedex, France
5 CECM-CNRS, 15 rue G. Urbain, 94400 Vitry sur Seine, France
© EDP Sciences 1996
Les intermétalliques : des superalliages aux quasicristaux
J. Phys. IV France 06 (1996) C2-259-C2-262
DOI: 10.1051/jp4:1996237
Volume-Diffusion of 59Fe in Al62Cu25.5Fe 12.5 Icosahedral Quasicrystals
J.L. Joulaud1, C. Bergman2, J. Bernardini3, P. Gas3, J.M. Dubois4, Y. Calvayrac5 and D. Gratias51 ONERA, BP 72, 92322 Châtillon cedex, France
2 CTM-CNRS, 26 rue du 141è RIA, 13003 Marseille, France
3 LM-CNRS, case 511, Faculté St Jérôme, 13397 Marseille, France
4 LSG2M-CNRS, Ecole des Mines, 54042 Nancy cedex, France
5 CECM-CNRS, 15 rue G. Urbain, 94400 Vitry sur Seine, France
Abstract
The volume diffusion of 59Fe in Al62Cu25.5Fe12.5 Icosahedral quasicrystals is analyzed using classical diffusion techniques. Over the temperature range from 550°C to 800°C, the volume diffusion coefficients show a classical diffusion behavior and the temperature dependence can be expressed by the following relation : [MATH]. In the absence of data on a crystalline phase with similar composition, diffusion coefficients are compared to those obtained for Fe in aluminium and in aluminides (FeAl and Al13Fe4) : no strong peculiarity linked to the quasicrystalline structure appears.
© EDP Sciences 1996