Journal
CORROSION SCIENCE
Volume 140, Issue -, Pages 134-142Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2018.06.008
Keywords
Surface modification; ZrB2-SiC; Interface; Adhesive strength; Oxidation; Cyclic ablation
Funding
- National Natural Science Foundation of China [51521061, 51572223]
- Program of Introducing Talents of Discipline to Universities, China (111 Project) [B08040]
- mobility scholarship within the framework of the Erasmus + International Credit Mobility Program
- China Scholarship Council (CSC) scholarship within a CSC-Sorbonne University (SU) doctoral program
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To enhance the oxidation and ablation performances of SiC coating, C/C composites with a porous surface layer were designed via blasting treatment and then followed by ZrB2 additive in the process of pressure-less reactive sintering. Cyclic ablation test using oxyacetylene torch from 1750 degrees C to room temperature showed that the coating possessed good ablation performance accompanying with the formation of Zr-O-Si glassy protective layer. The good sintering performance combined with the increased coating/substrate interfaces contributed to reduce the cyclic thermal stress and enhance the stability of the Zr-O-Si layer to the denudation of oxyacetylene torch, thus promoting the ablation performance.
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