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Volatility diagram of ZrB2‐SiC‐ZrC system and experimental validation.
- Source :
- Journal of the American Ceramic Society; Aug2018, Vol. 101 Issue 8, p3627-3635, 9p, 2 Diagrams, 3 Charts, 4 Graphs
- Publication Year :
- 2018
-
Abstract
- Abstract: A volatility diagram of zirconium carbide (ZrC) at 1600, 1930, and 2200°C was calculated in this work. Combining it with the existing volatility diagrams of ZrB<subscript>2</subscript> and SiC, the volatility diagram of a ternary ZrB<subscript>2</subscript>‐SiC‐ZrC (ZSZ) system was constructed in order to interpret the oxidation behavior of ZSZ ceramics. Applying this diagram, the formation of ZrC‐corroded and SiC‐depleted layers and the oxidation sequence of each component in ZSZ during oxidation and ablation could be well understood. Most of the predictions from the diagrams are consistent with the experimental observations on the oxidation scale of dense ZrB<subscript>2</subscript>‐SiC‐ZrC ceramics/coatings after oxidation at 1600°C or ablation at 1930 and 2200°C. The reasons for the discrepancy are also briefly discussed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00027820
- Volume :
- 101
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Journal of the American Ceramic Society
- Publication Type :
- Academic Journal
- Accession number :
- 129978115
- Full Text :
- https://doi.org/10.1111/jace.15497