Research Paper

Preparation and Microstructure of Nano MoSi2-SiC Composite by Melt Infiltration Process

  • ZHANG Xiao-Li ,
  • JIN Zhi-Hao ,
  • FENG Yao-Rong ,
  • ZHAO Wen-Zhen ,
  • Lü Zhen-Lin ,
  • HUO Chun-Yong
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  • 1. Department of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China; 2. State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China; 3. CNPC Research Institute of Tubular Goods, Xi'an 710065, China; 4. School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, China

Received date: 2006-08-17

  Revised date: 2006-10-10

  Online published: 2007-07-20

Abstract

MoSi2-SiC composite was successfully prepared by Si melt infiltration into Mo+C preforms. The crystal grain size of the resultant matrix is 150-600nm, and the size of SiC phase produced is 30-160nm which disperses homogeneously in the matrix. The strength of the composite is 214.8MPa, the toughness is 4.1MPa·m1/2, these mechanical properties are higher than that of single phase MoSi2. TEM results show lots of stacking faults, some dislocations, and twins existing in the composite.

Cite this article

ZHANG Xiao-Li , JIN Zhi-Hao , FENG Yao-Rong , ZHAO Wen-Zhen , Lü Zhen-Lin , HUO Chun-Yong . Preparation and Microstructure of Nano MoSi2-SiC Composite by Melt Infiltration Process[J]. Journal of Inorganic Materials, 2007 , 22(4) : 690 -694 . DOI: 2007 DOI:10.3724/SP.J.1077.2007.00690

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