无机材料学报 ›› 2013, Vol. 28 ›› Issue (3): 256-260.DOI: 10.3724/SP.J.1077.2013.12208

• 研究论文 • 上一篇    下一篇

ZrB2-SiC超高温陶瓷涂层的抗烧蚀性能研究

周海军1,2,3, 张翔宇2,3, 高 乐2,3, 胡建宝2,4, 吴 斌2,4, 董绍明2,3   

  1. (1. 中国科学院 特种无机涂层重点实验室, 上海 200050; 2. 中国科学院 上海硅酸盐研究所结构陶瓷与复合材料工程研究中心, 上海 200050; 3. 中国科学院 高性能陶瓷和超微结构国家重点实验室, 上海 200050; 4. 中国科学院大学, 北京 100049)
  • 收稿日期:2012-04-05 修回日期:2012-07-11 出版日期:2013-03-20 网络出版日期:2013-02-20
  • 基金资助:

    中国科学院特种无机涂层重点实验室开放基金(KLICM-2011-08)

Ablation Properties of ZrB2-SiC Ultra-high Temperature Ceramic Coatings

ZHOU Hai-Jun1,2,3, ZHANG Xiang-Yu2,3, GAO Le2,3, HU Jian-Bao2,4, WU Bin2,4, DONG Shao-Ming2,3   

  1. (1. The Key Laboratory of Inorganic Coating Materials, Chinese Academy of Sciences, Shanghai 200050, China; 2. Structural Ceramics and Composites Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; 3. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; 4. Graduate University of Chinese Academy of Sciences, Beijing 100049, China)
  • Received:2012-04-05 Revised:2012-07-11 Published:2013-03-20 Online:2013-02-20
  • Supported by:

    Key Laboratory of Inorganic coating materials, Chinese Academy of Sciences (KLICM-2011-08)

摘要: 为了提高C/C复合材料的抗氧化烧蚀性能, 采用浆料浸涂与原位反应复合工艺在材料表面制备了ZrB2-SiC超高温陶瓷涂层, 利用氧-丙烷火焰测试了涂层的抗烧蚀性能。结果表明: 采用复合工艺所制备的ZrB2-SiC超高温陶瓷涂层与基材具有较高的结合强度; 在氧-丙烷火焰冲刷条件下, 涂层具有良好的抗烧蚀性能, 涂层经1500℃下烧蚀600 s, ZrB2-SiC涂层无明显烧蚀, C/C复合材料保持完好。微观结构观察表明: 烧蚀测试后, 涂层中存在ZrO2和大量超高温陶瓷相, 涂层抗烧蚀形式主要表现为热化学烧蚀和机械剥蚀。

关键词: C/C复合材料, 超高温陶瓷涂层, 烧蚀性能

Abstract: To improve the anti-ablation properties, the ZrB2-SiC ultra-high ceramic coatings were successfully fabricated on the C/C composites surface by slurry dipping and liquid silicon infiltration process. Their ablation resistances properties were determined by using an equipment of oxygen-propane torch test. The results show that the bonding strength between the coating and C/C matrix is relatively high due to the formation of reactive SiC layer. The ZrB2-SiC coating has a well protection from oxygen-propane fire ablation at 1500℃ for 600 s. The whole coating keep integrity avoiding the C/C matrix from oxidation and ablation during the test. The microstructure indicates that ZrB2-SiC coating has some ZrO2 phase and ultra-high temperature ceramics phase after the test, which proves that the coating also has much longer life for the protection of C/C composites at high temperature airflow erosion environment. The anti-ablation forms of the ZrB2-SiC coating are mainly thermo chemistry corrosion and mechanical erosion.

Key words: C/C composites, ultra-high temperature ceramic coatings, ablation properties

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