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Mo–Si–B ALLOYS OXIDATION PROTECTIVE COATING FOR SiC-COATED CARBON/CARBON COMPOSITES.
- Source :
-
Surface Review & Letters . Apr2009, Vol. 16 Issue 2, p223-229. 7p. 3 Diagrams, 3 Graphs. - Publication Year :
- 2009
-
Abstract
- A novel Mo–Si–B double-layer coating was prepared for the carbon/carbon (C/C) composites by pack cementation in an argon atmosphere. The structures of the double-layer coatings were characterized by XRD and SEM. The as-received coating shows an excellent oxidation resistance at high and intermediate temperature. It could effectively protect C/C composites from oxidation for 30 h with a weight loss of 0.9% in air at 1873 K, and for 25 h with a weight loss of l.7% at 1173 K. The oxidation protective coating was principally due to producing eutectic glass film for decreasing oxygen diffusing through the penetrable cracks in the coating. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0218625X
- Volume :
- 16
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Surface Review & Letters
- Publication Type :
- Academic Journal
- Accession number :
- 38221211
- Full Text :
- https://doi.org/10.1142/S0218625X09012524