J Mater Sci Technol ›› 2001, Vol. 17 ›› Issue (01): 11-12.

• Research Articles • Previous Articles     Next Articles

Numerical Simulation of Unidirectional Infiltration of Silicon Carbide Preforms

Xuexi ZHANG, Dezun WANG, Dongyan DING, Congkai YAO   

  1. School of Materials Science and Engineering, Harbin institute of Technology, Harbin 150001, China
  • Received:2000-04-05 Revised:1900-01-01 Online:2001-01-28 Published:2009-10-10
  • Contact: Xuexi ZHANG

Abstract: Mathematical model of unidirectional infiltration was set up and metal infiltration velocity and temperature fields of the metal, preform, and composites were calculated using the finite difference method. The metal infiltration velocity has a close relationship with infiltration time. It is very large after the infiltration begins in a few seconds, then the velocity keeps almost constant. The temperature field of the composite proves that metal matrix composites (MMCs) after unidirectional pressure infiltration can solidify from the entrance of the preform to the infiltration front, which is useful for obtaining the MMCs with low porosity and high properties.

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