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用热压烧结方法制得碳纤维与氮化硅颗粒复合补强增韧熔石英基复合材料，其熔石英基体保持非晶态，只有少量鳞石英析出。材料的抗弯强度达到113．7MPa，断裂韧性为1．53MPa·m1／2，补强增韧效果明显。氮化硅的加入减缓了碳纤维的氧化，提高了材料的抗烧蚀性能。地面模拟试验表明，此材料完全符合某些航天器件的使用要求。
The hot-pressed sintering method was used to make carbon fiber and silicon nitride composite reinforcing and toughening fused silica matrix composites. The fused quartz matrix remained amorphous, with only a small amount of tridymite precipitated. Bending strength of the material reached 113.7MPa, fracture toughness of 1.53MPa · m1 / 2, reinforcing toughening effect is obvious. The addition of silicon nitride slows the oxidation of carbon fiber and enhances the material’s ablation resistance. Ground simulation tests show that this material fully meets the requirements of certain aerospace devices.