| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5360061 | Applied Surface Science | 2013 | 5 Pages |
Abstract
A multiphase coating based on Mo-Si-Al-C was formed on the surface of carbon/carbon (C/C) composites by a two-step pack cementation technique in argon atmosphere. Microstructure of the multiphase coating was characterized by X-ray diffraction, scanning electron microscope and energy dispersive spectroscope. X-ray diffraction analysis showed that the multiphase coating was composed of SiC, Mo (Si, Al)2, MoSi2 and Al4Mo3Si2. The multiphase coating coated C/C composites exhibited a weight loss of only 0.409% after oxidation in air at 1773Â K for 510Â h and could endure thermal cycling between 1773Â K and room temperature for 25 times. The weight loss of the coated C/C composites was primarily due to the reaction between C/C matrix and oxygen.
Keywords
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Physical and Theoretical Chemistry
Authors
Ting Li, Hejun Li, Xiaohong Shi, Jing Cheng, Lei Liu,