Roughness and oxidation : application to NiO growth on Ni at 800C

Huntz, Anne MarieLefevre, B.Cassino, Flávio Sandro Lays2012-12-052012-12-052000HUNTZ, A. M. ; LEFEVRE, B. ; CASSINO, F. S. L. Roughness and oxidation : application to NiO growth on Ni at 800C. Materials Science & Engineering. A, Structural Materials: properties, microstructure and processing, v. 290, n.1-2, p.190-197, out. 2000. Disponível em: <http://144.206.159.178/FT/718/598099/12397341.pdf>. Acesso em: 05 dez. 2012.09215093http://www.repositorio.ufop.br/handle/123456789/2004The changes with oxidation time of the oxide outer surface roughness, the oxide grain size and the oxidation rate constant kc for NiO growth on Ni were studied at 800°C in 1 atm oxygen. The roughness was determined by optical interferometry establishing 2D-profiles and 3D-images. Correlations were found between the variations of the oxide outer surface roughness or the kc values and the oxide grain size. These are attributed to the decrease of the oxide grain boundary density with time, which induces a decrease of the effective diffusion coefficient.en-USNiO roughnessOxide grain sizeOxidation constantNickel oxidationRoughness and oxidation : application to NiO growth on Ni at 800CArtigo publicado em periodicoO Periódico Materials Science and Engineering A concede permissão para depósito do artigo no Repositório Institucional da UFOP. Número da licença: 3311411337199.