To improve the ablation performance of carbon/carbon (C/C) composite materials, a WSi₂–ZrSi₂ composite-reinforced Zr_xHf_1–xC/SiC coating was prepared on the substrate surface via patterning strengthening method. The results show that this coating can protect the substrate from failure for 300 s under an oxyacetylene flame at 2600 °C. Owing to the presence of W, an extremely dense oxide layer was formed on the surface of the coating during initial ablation, which progressively led to the expulsion of the product of oxidation (WO₃) from the inner layer, as well as to holes and cracks on healing the coating surface, thereby significantly improving the ablation performance of the C/C composites. In addition, the excellent ablative performance and mechanism of the coating were analysed using volatility diagrams.

为了提高碳/碳（C / C）复合材料的烧蚀性能，通过构图强化方法在基板表面制备了WSi ₂ -ZrSi ₂复合增强Zr _x Hf _1–x C / SiC涂层。结果表明，该涂层可以在2600°C的乙炔火焰下保护基材300 s，使其不致失效。由于存在W，在初始烧蚀过程中在涂层表面形成了一层非常致密的氧化层，逐渐导致氧化产物的排出（WO ₃），从内层到修复涂层表面的孔和裂纹，从而显着提高C / C复合材料的烧蚀性能。另外，使用挥发性图分析了涂层的优异烧蚀性能和机理。