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To achieve the long-term oxidation protection of carbon/carbon composites at low and medium temperatures, a SiC/B 4 C–B 2 O 3 –SiO 2 –Al 2 O 3 coating was applied on the composites. The coating exhibits a dual-layer structure with a dense SiC inner layer and B 4 C–B 2 O 3 –SiO 2 –Al 2 O 3 multi-phase outer...
A comparison was presented of the thermal and ablation behaviors of two carbon fiber reinforced ceramic–matrix composites (one with a SiC matrix and the other with a ZrB 2 –SiC matrix). The C/SiC composite possessed a lower thermal conductivity (TC) and a higher emissivity in comparison to the C/ZrB 2 –SiC composite. The two composites exhibited the good ablation-resistive properties...
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