无机材料学报 ›› 2013, Vol. 28 ›› Issue (10): 1158-1162.DOI: 10.3724/SP.J.1077.2013.13253 CSTR: 32189.14.SP.J.1077.2013.13253

• 研究快报 • 上一篇    

渗硅工艺制备ZrB2-SiC涂层的微观结构与抗氧化性能

周海军1,2, 冯 倩3, 阚艳梅1,2, 高 乐1,2, 董绍明1,2   

  1. (1. 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;2. 中国科学院 上海硅酸盐研究所,高性能陶瓷和超微结构国家重点实验室,上海200050;3. 东华大学 分析测试中心,上海200051)
  • 收稿日期:2013-05-07 修回日期:2013-05-22 出版日期:2013-10-20 网络出版日期:2013-09-18
  • 作者简介:周海军. E-mail:zhouhj00000@mail.sic.ac.cn
  • 基金资助:

    National Natural Science Foundation of China (51202271)

ZrB2-SiC Coatings Prepared by Vapor and Liquid Silicon Infiltration Methods: Microstructure and Oxidation Resistance Property

ZHOU Hai-Jun1,2, FENG Qian3, KAN Yan-Mei1,2, GAO Le1,2, DONG Shao-Ming1,2   

  1. (1. Structural Ceramics and Composites Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; 2. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050; 3. Analysis and Testing Center, Donghua University, Shanghai 201620, China)
  • Received:2013-05-07 Revised:2013-05-22 Published:2013-10-20 Online:2013-09-18
  • About author:ZHOU Hai-jun (1981-), male, PhD. E-mail:zhouhj00000@mail.sic.ac.cn
  • Supported by:

    National Natural Science Foundation of China (51202271)

摘要: 为了提高陶瓷基复合材料的抗氧化性能,分别采用气相、液相渗硅工艺制备了ZrB2-SiC涂层,利用静态氧化试验测试了ZrB2-SiC涂层的抗氧化性能,并分析了涂层的微观结构演化过程。结果表明:气相渗硅工艺制备的涂层抗氧化性能更优良,氧化试验后在涂层表面形成一层致密结构的氧化物层,有效抑制氧化性气体向涂层内部扩散,提高涂层的高温抗氧化防护能力。由于液相渗硅工艺制备的涂层存在残留硅成分和微裂纹,导致涂层高温抗氧化防护能力较差。

关键词: 硼化锆, 复合材料, 抗氧化性能

Abstract: Novel zirconium diboride-silicon carbide (ZrB2-SiC) coatings were prepared by vapor silicon infiltration (VSI) and liquid silicon infiltration (LSI), respectively. The static oxidation resistance properties of these coatings were evaluated and their microstructure evolution during oxidation was studied. It showed that the VSI coating had better oxidation resistance than LSI. A compact oxide scale was formed on the VSI coating, which strongly suppressed further oxidation damage during the testing. The poor oxidation resistance of the LSI coating could be mainly attributed to micro-cracks and residual silicon.

Key words: zirconium boride, composite materials, oxidation resistance properties

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