Identification of Complex Oxidation/Corrosion Behaviours of Boron Nitride Under High Temperature
Langue
EN
Article de revue
Ce document a été publié dans
Oxidation of Metals. 2017-02-03, vol. 88, n° 3-4, p. 247-256
Résumé en anglais
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% N 2 , 20% O 2) and wet ...Lire la suite >
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% N 2 , 20% O 2) and wet conditions (10% H 2 O, 70% N 2 , 20% O 2), 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.< Réduire
Mots clés en anglais
Boron nitride
Oxidation
Thermo-gravimetric analysis
Corrosion
Unités de recherche