Oxidation of ß-SiC at high temperature in Ar/O2, Ar/CO2, Ar/H2O gas mixtures: Active/passive transition
An experimental study of the active/passive transition in the oxidation of ß-SiC was carried out between 1650 °C and 1800 °C in Ar/O2, Ar/H2O and Ar/CO2 gas mixtures or mixtures including two among these oxidant species. For that purpose an experimental device based on a Joule-heated SCS-6 fiber per...
Saved in:
Published in | Journal of the European Ceramic Society Vol. 38; no. 13; pp. 4320 - 4328 |
---|---|
Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
01.10.2018
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | An experimental study of the active/passive transition in the oxidation of ß-SiC was carried out between 1650 °C and 1800 °C in Ar/O2, Ar/H2O and Ar/CO2 gas mixtures or mixtures including two among these oxidant species. For that purpose an experimental device based on a Joule-heated SCS-6 fiber permitted determination of the oxidation regime from changes in electric current. The observed transitions were compared to results from other authors. Two predictive models of the active/passive transition were studied by means of a 3-D simulation of the experimental device in order to have an estimation of the volatilization rate of SiO2. These models were compared against experimental results. |
---|---|
ISSN: | 0955-2219 1873-619X |
DOI: | 10.1016/j.jeurceramsoc.2018.04.036 |