Both Co-22at%Cr bulk alloy and its thin films were analyzed by an atom probe field ion microscope. While no compositional inhomogeneity was found in the bulk sample, a significant compositional fluctuation was found in the Co-Cr thin film sample which was deposited on a tungsten tip surface at 200°C. The concentration of the Cr enriched region was in the range of 30-40 at% Cr, while that of the Cr depleted region was in the range of 5-10 at% Cr.
ASJC Scopus subject areas
- Surfaces, Coatings and Films