Heat dissipation of carbon shell in ZrC–SiC/TaC coating to improve protective ability against ultrahigh temperature ablation

• DOI: 10.26599/jac.2024.9220921
• Publication Date: 2024-06-04T08:33:17Z
• Authors: Yuyu Zhang; Xuemeng Zhang; Hongkang Ou; Bozhe Wang; Jia Sun; Qiangang Fu
• Keywords: Structural material; Carbon fibers

To efficiently decrease the ablation heat accumulation and improve protective ability of ZrC-SiC/TaC coating on carbon/carbon composites, a thermally conductive nano-network with ceramic@carbon core-shell structure was designed constructed. Polymer-derived SiC/TaC graphene carbon shell synthesized introduced into ZrC by supersonic atmospheric plasma spraying. Graphene paths were benefitted in increasing transfer capability lowering surface temperature about 200 °C during oxyacetylene ablation. The dissipation ZrC-SiC/TaC@C reduced volatilization low-melting-point phases delayed sintering ZrO₂ particles. Thus, decreased mass linear rates 91.4 % 93.7 compared to coating, respectively. This work provided constructive idea resistance coatings incorporating nanomaterials function dissipation.