Oxidation of ZrB sub(2)-SiC-ZrSi sub(2) ceramics in oxygen

The oxidation of ZrB sub(2)-SiC and ZrB sub(2)-SiC-ZrSi sub(2) ceramics of different composition has been studied experimentally at 1500 degree C in pure oxygen for up to 50 h. ZrB sub(2)-SiC-ZrSi sub(2) ceramics proved to be the most oxidation-resistant at ZrSi sub(2) contents of less then 4 wt%. T...

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Bibliographic Details
Published in:Journal of the European Ceramic Society 2010-08, Vol.30 (11), p.2397-2405
Main Authors: Grigoriev, Oleg N, Galanov, Boris A, Lavrenko, Vladimir A, Panasyuk, Alla D, Ivanov, Sergey M, Koroteev, Alexandr V, Nickel, Klaus G
Format: Article
Language:English
Subjects:
Ceramics
Mathematical analysis
Oxidation
Oxidation resistance
Reaction kinetics
Scale (corrosion)
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Summary:The oxidation of ZrB sub(2)-SiC and ZrB sub(2)-SiC-ZrSi sub(2) ceramics of different composition has been studied experimentally at 1500 degree C in pure oxygen for up to 50 h. ZrB sub(2)-SiC-ZrSi sub(2) ceramics proved to be the most oxidation-resistant at ZrSi sub(2) contents of less then 4 wt%. These ceramics were more oxidation-resistant than ZrB sub(2)-SiC ceramics. An analytical model of growth kinetics for a multilayered scale based on an oxidation-diffusion balance was developed and tested.
ISSN:0955-2219
DOI:10.1016/j.jeurceramsoc.2010.03.016