Journal of Inorganic Materials ›› 2013, Vol. 28 ›› Issue (10): 1158-1162.doi: 10.3724/SP.J.1077.2013.13253

• Research Letter • Previous Articles    

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 Online:2013-10-20 Published:2013-09-18
  • Contact: DONG Shao-ming, professor. E-mail:smdong@mail.sic.ac.cn
  • About author:ZHOU Hai-jun (1981-), male, PhD. E-mail:zhouhj00000@mail.sic.ac.cn
  • Supported by:

    National Natural Science Foundation of China (51202271)

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

CLC Number: 

  • TB332