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- Title
Mo–Si–B ALLOYS OXIDATION PROTECTIVE COATING FOR SiC-COATED CARBON/CARBON COMPOSITES.
- Authors
Feng, Tao; Li, He-Jun; Fu, Qian-Gang; Shi, Xiao-Hong; Li, Ke-Zhi
- 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.
- Subjects
CARBON composites; COATING processes; OXIDATION; CREEP (Materials); CORROSION resistant materials
- Publication
Surface Review & Letters, 2009, Vol 16, Issue 2, p223
- ISSN
0218-625X
- Publication type
Article
- DOI
10.1142/S0218625X09012524