Honvault, Christophe
and Peres, Véronique and Cassayre, Laurent and Chamelot, Pierre and Palau, Patrice and Bouvet, Sylvie and Pijolat, Michèle
Oxidation kinetics of a Ni-Cu based cermet at high temperature.
(2013)
Corrosion Science, 68. 154-161. ISSN 0010-938X
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 1MB |
Official URL: http://dx.doi.org/10.1016/j.corsci.2012.11.007
Abstract
The oxidation kinetics of a cermet composed of Ni–Cu alloy and nickel ferrite was studied by thermogravimetry at 960 °C under oxygen in the range 0.5–77 kPa. After an initial mass increase up to 15 g/m2 due to oxidation of surface metallic particles, the mass change was attributed to both outwards NiO growth and internal oxidation. Above 40 g/m2, the NiO scale thickness remained constant and the oxidation kinetics followed a complete parabolic law. The variations of the kinetic rate with oxygen partial pressure allowed to propose mechanisms, rate-controlling steps and kinetic laws in both transient and long term oxidation periods.
| Item Type: | Article |
|---|---|
| Additional Information: | Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com/science/article/pii/S0010938X12005495 |
| Audience (journal): | International peer-reviewed journal |
| Uncontrolled Keywords: | |
| Institution: | Other partners > Rio Tinto Alcan (FRANCE) French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Other partners > Ecole Nationale Supérieure des Mines de Saint-Etienne - ENSMSE (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) |
| Laboratory name: | |
| Statistics: | download |
| Deposited On: | 12 Apr 2013 07:19 |
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