1. A SiC/ZrB2–SiC/SiC oxidation resistance multilayer coating for carbon/carbon composites
- Author
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Yao, Xi-Yuan, Li, He-Jun, Zhang, Yu-Lei, Ren, Jun-Jie, Yao, Dong-Jia, and Tao, Jun
- Subjects
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SILICON carbide , *ZIRCONIUM boride , *SURFACE coatings , *OXIDATION , *CARBON composites , *TEMPERATURE , *CHEMICAL vapor deposition , *SLURRY - Abstract
Abstract: 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 150μm in thickness. It can protect C/C composites from oxidation for more than 300h at 1173K which is attributed to the oxidation ability of ZrB2. The coating can also effectively protect C/C composites from oxidation at 1773K for 217h which is due to the SiO2–ZrSiO4 compound glass during oxidation test. [Copyright &y& Elsevier]
- Published
- 2012
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