Abstract
To characterize the oxidation/corrosion behaviour of boron nitride (BN) at high temperature and to determine kinetics, thermo-gravimetric analyses were performed on BN flat coatings under dry (80% N2, 20% O2) and wet conditions (10% H2O, 70% N2, 20% O2), at temperatures ranging from 700 to 900 °C. The surface morphology was analysed by scanning electron microscopy. The aim of the study was to understand the complex behaviour of BN at high temperature under wet air. A model was then proposed to explain the recorded mass variations, by taking into account a competition between absorption and volatilization phenomena. Finally, an estimation of the amount of adsorbed species was extracted from these data.
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Acknowledgments
This work has been supported by Herakles, through a PhD grant given to S. Willemin.
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Willemin, S., Carminati, P., Jacques, S. et al. Identification of Complex Oxidation/Corrosion Behaviours of Boron Nitride Under High Temperature. Oxid Met 88, 247–256 (2017). https://doi.org/10.1007/s11085-017-9739-z
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DOI: https://doi.org/10.1007/s11085-017-9739-z