par Delplancke, Marie-Paule ;Jardinier, Marcelle ;Bouillon, Florent
Référence Surface and interface analysis, 16, 1-12, page (526-529)
Publication Publié, 1990-07
Article révisé par les pairs
Résumé : This paper presents the results of a surface analysis of copper-rhodium alloys by Auger electron spectroscopy during heat treatments under vacuum. It is shown that copper segregation takes place in the first atomic layer at every rhodium concentration. Special attention is given to the influence of diffusion rate on the composition of the surface region. The results are compared with theoretical models. A segregation enthalpy is determined for a 1.5 at.% Rh alloy at 873 K.