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| Static Ablation Resistance of ZrB2-SiC Composite Coatings Prepared by Atmospheric Plasma Spraying |
| Received:January 28, 2016 Revised:June 15, 2016 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2016.03.007 |
| KeyWord:C/C composites ZrB2-SiC composite coatings oxidation resistance at high temperature plasma spraying |
| Author | Institution |
| WANG Jia-wen |
1.South China University of Technology, School of Material Science and Engineering, Guangzhou , China;2.Guangdong Institute of New Materials, Guangzhou , China;3.National Engineering Lab for Modern Materials Surface Engineering Technology, Guangzhou , China;4.Guangdong Provincial Key Lab for Modern Materials Surface Engineering Technology, Guangzhou , China |
| LIU Min |
1.Guangdong Institute of New Materials, Guangzhou , China;2.National Engineering Lab for Modern Materials Surface Engineering Technology, Guangzhou , China;3.Guangdong Provincial Key Lab for Modern Materials Surface Engineering Technology, Guangzhou , China |
| DENG Chun-ming |
1.Guangdong Institute of New Materials, Guangzhou , China;2.National Engineering Lab for Modern Materials Surface Engineering Technology, Guangzhou , China;3.Guangdong Provincial Key Lab for Modern Materials Surface Engineering Technology, Guangzhou , China |
| MAO Jie |
1.Guangdong Institute of New Materials, Guangzhou , China;2.National Engineering Lab for Modern Materials Surface Engineering Technology, Guangzhou , China;3.Guangdong Provincial Key Lab for Modern Materials Surface Engineering Technology, Guangzhou , China |
| HAN Wei |
1.South China University of Technology, School of Material Science and Engineering, Guangzhou , China;2.Guangdong Institute of New Materials, Guangzhou , China;3.National Engineering Lab for Modern Materials Surface Engineering Technology, Guangzhou , China;4.Guangdong Provincial Key Lab for Modern Materials Surface Engineering Technology, Guangzhou , China |
| ZENG De-chang |
South China University of Technology, School of Material Science and Engineering, Guangzhou , China |
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| Abstract: |
| Object To improve the static ablation-resistance of C/C composites. Methods The ZrB2-SiC composite coatings were deposited on C/C composites by atmospheric plasma spraying (APS). Oxidation experiments were carried out at 1500 ℃ on the ZrB2-SiC coated C/C composites. After that, microstructures of the coatings were analyzed by XRD, SEM and EDS. Results The homogeneous ZrB2-SiC coatings prepared on the surface of C/C composites by APS showed typical layer structure, and the coatings were composed of molted powder particles with close packing. The thickness was about 200 μm. After oxidation at 1500 ℃ for 2 h, 3 h and 4 h, the coated specimen still kept intact and did not suffer any injury, the weight increase of C/C specimen was 3.39%, 2.95% and 4.25%, respectively. Conclusion The homogeneous and integrated ZrB2-SiC composite coatings could be fabricated on the surface of C/C composites by atmospheric plasma spraying (APS), and ZrB2-SiC composite coatings could effectively improve the oxidation-resistance of C/C composites. |
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