The invention discloses a high-temperature-resistant long-service-life anti-ablation ceramic modified carbon/carbon composite material as well as a preparation method and application thereof, and belongs to the technical field of preparation of anti-oxidation anti-ablation carbon/carbon composite materials. The HfC ultrahigh-temperature ceramic is introduced into the porous C/C composite material through PIP, and uniform distribution of the HfC ultrahigh-temperature ceramic in a carbon matrix is achieved. ZrC is generated by means of reaction of Zr-Cu powder and a carbon matrix, rapid densification of the matrix at low temperature is achieved, and the ceramic modified C/C composite material which can be applied for a long time in a large-flow strong-scouring ablation environment is prepared. After the HfC-ZrC-Cu synergistically modified C/C composite material prepared by the invention is circularly ablated for 600s under oxyacetylene flame with the heat flux density of 4.18 MW/m < 2 >, a sample is still complete, the mass ablation rate and the linear ablation rate are respectively 0.544 mg/s and 0.107 mu m/s, and the composite material shows excellent cyclic ablation resistance.
本发明公开了一种耐高温长寿命抗烧蚀陶瓷改性碳/碳复合材料及其制备方法和应用,属于防氧化抗烧蚀碳/碳复合材料制备技术领域。本发明通过PIP将HfC超高温陶瓷引入多孔C/C复合材料中,实现HfC超高温陶瓷在碳基体中的均匀分布。借助Zr‑Cu粉与碳基体反应生成ZrC,实现低温下基体的快速致密化,制备出能够在大流量强冲刷烧蚀环境下的长时间应用的陶瓷改性C/C复合材料。本发明所制备的HfC‑ZrC‑Cu协同改性C/C复合材料在热流密度为4.18MW/m2的氧乙炔火焰下循环烧蚀600s后试样依然完整,质量烧蚀率和线烧蚀率分别为0.544mg/s和0.107μm/s,表现出优异的抗循环烧蚀性能。
High-temperature-resistant long-life anti-ablation ceramic modified carbon/carbon composite material as well as preparation method and application thereof
一种耐高温长寿命抗烧蚀陶瓷改性碳/碳复合材料及其制备方法和应用
2023-09-26
Patent
Elektronische Ressource
Chinesisch
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