Oxidation kinetics of zirconium in water vapour between 750 and 1250°C

The zirconium oxidation has been followed in H 2/H 20 gas mixtures by microgravimetry and morphological observations between 750 and 1250°C. The reaction rate is governed by a mixed regime of oxygen diffusion through multiplex oxide layers of zirconia and an oxygen solid solution. After the metal co...

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Veröffentlicht in:	Materials chemistry and physics 1988, Vol.19 (3), p.229-245
Hauptverfasser:	Nardou, F., Degh Khadirian, R., Raynaud, P., Billy, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Chemical Sciences Corrosion Corrosion mechanisms Cross-disciplinary physics: materials science rheology Exact sciences and technology Material chemistry Materials science Metals, semimetals and alloys Metals. Metallurgy Physics Specific materials
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Beschreibung
Zusammenfassung:	The zirconium oxidation has been followed in H 2/H 20 gas mixtures by microgravimetry and morphological observations between 750 and 1250°C. The reaction rate is governed by a mixed regime of oxygen diffusion through multiplex oxide layers of zirconia and an oxygen solid solution. After the metal core has disappeared the reaction proceeds by direct oxidation of the solid solution. Different kinetic behaviours have been shown according to the phase couples present.
ISSN:	0254-0584 1879-3312
DOI:	10.1016/0254-0584(88)90029-6