Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Carbon fiber reinforced carbon-silicon carbide-zirconium carbide composite material and preparation method thereof
The invention relates to a carbon fiber reinforced carbon-silicon carbide-zirconium carbide composite material and a preparation method thereof. The method comprises the following steps: (1) depositing a pyrolytic carbon matrix on the surface of carbon fibers contained in a carbon fiber preform to obtain a modified carbon fiber preform; (2) preparing a mixed resin solution of silicon powder, zirconium powder, graphite powder and phenolic resin in a mass ratio of (1-3): (4-6): 5: 100; (3) impregnating the modified carbon fiber preform with the mixed resin solution, and then sequentially carrying out curing and carbonization reactions on the impregnated modified carbon fiber preform, wherein the carbonization reaction is carried out in an inert atmosphere, the temperature of the carbonization reaction is 1650-1750 DEG C, and the time is 0.5-2 hours; and (4) repeating the step (3) at least once to obtain the composite material. According to the invention, silicon carbide and zirconium carbide can be uniformly distributed in the composite material, the content of free metals is reduced, and the oxidation resistance and ablation resistance of the material are improved.
本发明涉及一种碳纤维增强碳‑碳化硅‑碳化锆复合材料及其制备方法。所述方法：(1)在碳纤维预制体包含的碳纤维表面沉积热解碳基体，得改性碳纤维预制体；(2)配制硅粉、锆粉、石墨粉和酚醛树脂的质量比为(1～3)：(4～6)：5:100的混合树脂溶液；(3)用混合树脂溶液浸渍改性碳纤维预制体，然后使浸渍后的改性碳纤维预制体依次进行固化和碳化反应；碳化反应在惰性气氛中进行，碳化反应温度为1650～1750℃，时间为0.5～2h；(4)重复步骤(3)至少一次，制得所述复合材料。本发明能使得碳化硅、碳化锆在复合材料中均匀分布，降低游离金属含量低，提高材料的抗氧化、耐烧蚀性能。
Carbon fiber reinforced carbon-silicon carbide-zirconium carbide composite material and preparation method thereof
The invention relates to a carbon fiber reinforced carbon-silicon carbide-zirconium carbide composite material and a preparation method thereof. The method comprises the following steps: (1) depositing a pyrolytic carbon matrix on the surface of carbon fibers contained in a carbon fiber preform to obtain a modified carbon fiber preform; (2) preparing a mixed resin solution of silicon powder, zirconium powder, graphite powder and phenolic resin in a mass ratio of (1-3): (4-6): 5: 100; (3) impregnating the modified carbon fiber preform with the mixed resin solution, and then sequentially carrying out curing and carbonization reactions on the impregnated modified carbon fiber preform, wherein the carbonization reaction is carried out in an inert atmosphere, the temperature of the carbonization reaction is 1650-1750 DEG C, and the time is 0.5-2 hours; and (4) repeating the step (3) at least once to obtain the composite material. According to the invention, silicon carbide and zirconium carbide can be uniformly distributed in the composite material, the content of free metals is reduced, and the oxidation resistance and ablation resistance of the material are improved.
本发明涉及一种碳纤维增强碳‑碳化硅‑碳化锆复合材料及其制备方法。所述方法：(1)在碳纤维预制体包含的碳纤维表面沉积热解碳基体，得改性碳纤维预制体；(2)配制硅粉、锆粉、石墨粉和酚醛树脂的质量比为(1～3)：(4～6)：5:100的混合树脂溶液；(3)用混合树脂溶液浸渍改性碳纤维预制体，然后使浸渍后的改性碳纤维预制体依次进行固化和碳化反应；碳化反应在惰性气氛中进行，碳化反应温度为1650～1750℃，时间为0.5～2h；(4)重复步骤(3)至少一次，制得所述复合材料。本发明能使得碳化硅、碳化锆在复合材料中均匀分布，降低游离金属含量低，提高材料的抗氧化、耐烧蚀性能。
Carbon fiber reinforced carbon-silicon carbide-zirconium carbide composite material and preparation method thereof
一种碳纤维增强碳-碳化硅-碳化锆复合材料及其制备方法
WANG PENG (Autor:in) / YU XINMIN (Autor:in) / WU CHAOJUN (Autor:in) / YANG LIANGWEI (Autor:in) / HUO PENGFEI (Autor:in) / LIU JUNPENG (Autor:in) / ZUO HONGJUN (Autor:in)
05.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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