Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1463471 | Ceramics International | 2013 | 7 Pages |
Abstract
To improve the ablation resistance of carbon/carbon (C/C) composites, a TaC coating was prepared by supersonic plasma spraying on SiC coated C/C composites. The microstructure and morphology of the coatings were characterised by Scanning Electron Microscopy and X-ray diffraction. The ablation properties were studied at different temperatures under oxyacetylene torch. At 2100 °C, the oxides were blown away and resulted in high ablation rates: 1.2×10−2 mm/s and 3.9×10−3 g/s. However, most oxides can remain in ablation centre and serve as a coating at low temperature (1900 and 1800 °C). Therefore, the TaC/SiC coated samples exhibited zero linear ablation rate and lower mass ablation rate.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Yong-jie Wang, He-jun Li, Qian-gang Fu, Heng Wu, Lei Liu, Can Sun,