Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7895774 | Corrosion Science | 2014 | 7 Pages |
Abstract
Zirconium carbide (ZrC) rich surface layer with a thickness of 80-100 μm was prepared on carbon/carbon (C/C) composites. The ZrC-rich layer consisted of submicron ZrC particles, homogeneously dispersed in the carbon matrix. The mass ablation rate of the composite with the ZrC-rich layer was 69% lower than that of the bare C/C composites. The ZrC-rich layer could seal the surface pores and cracks to restrain the preferential ablation in the defect area and form a continuously melting ZrO2 layer to prevent the carbon from oxidizing during ablation. The strengthened ZrC-rich layer could reduce the mechanical denudation of the composites.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Cuiyan Li, Kezhi Li, Hejun Li, Yulei Zhang, Haibo Ouyang, Dongjia Yao, Lei Liu,