Abstract Featured with the dense and stability under high temperature, a ZrSiO4-aluminosilicate glass coating for the carbon/carbon composites was designed and prepared via a slurry painting-sintering process. The molten aluminosilicate glass can fill the crevices and cracks to improve the compactness, and play a self-healing role to restrain the propagation of the cracks caused by thermal mismatch under the high temperature. Furthermore, it has high infrared emissivity, which is helpful for cooling of composites to improve the antioxidant capacity. This coating has high antioxidation capability with a mass loss of 23.8 g/m2 for substrates at 1773 K for 20 h.

中文翻译：

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一种用于碳/碳复合材料的具有自修复能力和高红外发射率的微晶玻璃涂层

摘要 以在高温下致密、稳定的特点，采用浆料喷涂-烧结工艺设计制备了一种用于碳/碳复合材料的ZrSiO4-铝硅酸盐玻璃涂层。熔融的铝硅酸盐玻璃可以填充缝隙和裂缝，提高致密性，并起到自愈作用，抑制高温下热失配引起的裂缝扩展。此外，它具有较高的红外发射率，有利于复合材料的冷却，提高抗氧化能力。这种涂层具有很高的抗氧化能力，在 1773 K 下 20 小时，基材的质量损失为 23.8 g/m2。