Journal of Inorganic Materials ›› 2011, Vol. 26 ›› Issue (9): 969-973.DOI: 10.3724/SP.J.1077.2011.00969

• Research Paper • Previous Articles     Next Articles

Self-healing Behavior of 2D-C/[SiC-(B-C)] Composite in Aero-engine Combustion Chamber

LIU Guang-Hai, CHENG Lai-Fei, LUAN Xin-Gang, LIU Yong-Sheng   

  1. LIU Guang-Hai, Cheng Lai-Fei, LUAN Xin-Gang, LIU Yong-Sheng
  • Received:2010-11-11 Revised:2011-02-21 Published:2011-09-20 Online:2011-08-19
  • Supported by:

    National Natural Science Foundation of China (51032006, 50820145202)

Abstract: 2D-C/[SiC-(B-C)] samples modified by B-C ceramic as self-healing component and boron-silicon glass phase were assessed by environmental engine experiments at 1000℃, 1200℃, 1350℃. Furthermore, tensile strength and three point bending strength of the samples were tested at room temperature after assessment. The results showed that the tensile strength and three point bending strength increased with the increase of assessment temperature, however, three point bending mechanical properties increased at a higher rate. SEM results showed that the glass phase generated by oxidization of B-C self-healing component and the boron oxide glass phase filled pores and cracks effectively. According to the experiments results, the self-healing mechanisms in aero-engine combustion chamber of such two samples were discussed.

Key words: 2D-C/[SiC-(B-C)], C/SiC, self-healing, glass phase, B-C component, oxidation

CLC Number: