Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1473498 | Journal of the European Ceramic Society | 2016 | 8 Pages |
Abstract
A novel SiC/SiC–ZrC gradient coating system was prepared on the surface of carbon/carbon (C/C) composites by supersonic plasma spraying. The microstructure and ablation resistance of the gradient coating were studied. The results show that strong bond was formed between SiC inner coating and SiC–ZrC gradient coating. The coating system exhibits good ablation resistance under oxyacetylene ablation for 60 s. Compared with the single SiC-coated C/C composites, the linear and mass ablative rate decrease 54.2% and 62.5%, respectively. The chemical ablation and mechanical denudation are dominating on the central region and chemical ablation is dominating on the transition region and border region.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Dong-Jia Yao, He-Jun Li, Heng Wu, Qian-Gang Fu, Xin-Fa Qiang,