复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (1): 1-8.DOI: 10.19936/j.cnki.2096-8000.20260128.001

• 基础与力学性能研究 •    下一篇

2.5D机织碳纤维增强Zr基陶瓷复合材料烧蚀性能研究

王润宁1, 何财鑫1, 渠振江2, 张佳平1*   

  1. 1.西北工业大学 超高温结构复合材料重点实验室,陕西省纤维增强轻质复合材料重点实验室,西安 710072;
    2.晋西工业集团有限责任公司,太原 030027
  • 收稿日期:2025-07-10 出版日期:2026-01-28 发布日期:2026-03-12
  • 通讯作者: 张佳平(1989—),男,博士,副教授,博士生导师,研究方向为高性能碳/碳复合材料以及抗氧化烧蚀涂层,zhangjiaping@nwpu.edu.cn。
  • 作者简介:王润宁(1998—),女,博士研究生,研究方向为超高温陶瓷改性碳/碳复合材料。
  • 基金资助:
    国家自然科学基金(52272044);河南省科技研发计划联合基金(225200810002);国家科技重大专项基础研究项目(J2022-Ⅵ-0011-0042);新材料陕西实验室基金(2024ZY-JCYJ-04-05);西北工业大学博士学位论文创新基金(CX2025054)

Research on the ablation properties of 2.5D woven carbon fiber reinforced Zr-based ceramic composites

WANG Running1, HE Caixin1, QU Zhenjiang2, ZHANG Jiaping1*   

  1. 1. Science and Technology on Thermostructural Composite Materials Laboratory, Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an 710072, China;
    2. Jinxi Industries Group Co., Ltd., Taiyuan 030027, China
  • Received:2025-07-10 Online:2026-01-28 Published:2026-03-12

摘要: 连续纤维增强陶瓷基复合材料密度低,同时具备卓越的机械性能与抗烧蚀/氧化特性,被认为是极具发展潜力的热结构材料。本研究以2.5D机织碳纤维预制体作为增强体,采用化学气相渗透结合反应熔渗工艺制备碳纤维增强Zr基陶瓷复合材料,探究了其在氧-乙炔以及氧-煤油环境中的烧蚀行为。结果表明:经过2 200 ℃氧-乙炔环境100 s的烧蚀考核,材料结构完整,并表现出较低的线烧蚀率和质量烧蚀率,分别为-0.74 μm/s和1.51 mg/s,经1 300 ℃氧-煤油烧蚀100 s后,其线烧蚀率和质量烧蚀率分别为-0.99 μm/s和11.48 mg/s。氧-乙炔烧蚀后,材料表面形成ZrO2+SiO2复合氧化物保护层,可以有效阻挡氧气向材料内部扩散,使其具有良好的抗烧蚀性能,但在氧-煤油烧蚀环境下,由于燃气中的水蒸气与SiO2反应生成气体,致使其氧化层疏松多孔,从而为氧化性气体扩散提供通道,引发基体与纤维氧化,削弱复合材料的抗冲刷能力。

关键词: 碳纤维增强Zr基陶瓷复合材料, 氧-乙炔烧蚀, 氧-煤油烧蚀, 烧蚀机理

Abstract: Continuous fiber reinforced ceramic matrix composites are considered highly promising thermal structural materials due to their low density, excellent mechanical properties, and outstanding oxidation and ablation resistance. In this study, a 2.5D woven carbon fiber preform was used as the reinforcement, and carbon fiber reinforced Zr matrix ceramic composites were fabricated by a hybrid technique utilizing both chemical vapor and reactive melt infiltration. The ablation behavior of the composites was investigated under oxyacetylene and oxy-kerosene environments. The results showed that after 100 s of ablation at 2 200 ℃ in an oxyacetylene flame, the composite structure remained intact, with linear and mass ablation rates of -0.74 μm/s and 1.51 mg/s, respectively. Under oxy-kerosene ablation at 1 300 ℃ for 100 s, the values for the linear and mass ablation rates are -0.99 μm/s and 11.48 mg/s. The ZrO2+SiO2 oxide protective layer formed on the surface after oxygen-acetylene ablation can effectively block oxygen diffusion into the matrix, endowing it with good ablation resistance. However, under oxygen-kerosene ablation conditions, the water vapor in the combustion gas reacts with SiO2 to form gaseous products, resulting in a porous and loose SiO2 protective layer. These pores become diffusion channels for oxidizing gases, leading to oxidation of the matrix and fibers, which consequently reduces erosion resistance of the composites.

Key words: carbon fiber reinforced Zr matrix ceramic composites, oxygen-acetylene ablation, oxygen-kerosene ablation, ablation mechanism

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