Journal
CORROSION SCIENCE
Volume 57, Issue -, Pages 148-153Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2011.12.023
Keywords
Ceramic; Weight loss; Thermal cycling; Oxidation
Funding
- National Natural Science Foundation of China [50902111]
- 111 project [08040]
- NPU Foundation for Fundamental Research
- State Key Laboratory of Solidification Processing (NWPU), China [73-QP-2010]
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To extend the oxidation protective temperature range of coating for carbon/carbon (C/C) composites, a SiC/ZrB2-SiC/SiC multilayer coating was prepared by a three-step method of pack cementation, slurry and chemical vapor deposition. The prepared coating is composed of three layers with about 150 mu m in thickness. It can protect C/C composites from oxidation for more than 300 h at 1173 K which is attributed to the oxidation ability of ZrB2. The coating can also effectively protect C/C composites from oxidation at 1773 K for 217 h which is due to the SiO2-ZrSiO4 compound glass during oxidation test. (C) 2012 Elsevier Ltd. All rights reserved.
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