Abstract: Ti₃SiC₂ ceramics were prepared by infiltration-sintering technology, Up to now, it is a new method for preparing Ti₃SiC₂ ceramics. The phase composition of Ti₃SiC₂ ceramics were examined using XRD-7000 X-ray diffraction. The bending strength, friction and wear properties of Ti₃SiC₂ ceramics were investigated using an INSTRON-1195 Electronic universal testing machine and a HST-100 pin-on-disc friction and wear testing machine, respectively. The results showed that Ti₃SiC₂ ceramics can be prepared by infiltration-sintering technology. By increasing of Ti₃SiC₂ content, the flexural strength, friction coefficient and wear rate of samples decreased. The samples showed good wear resistance and the wear mechanism was also discussed. When the amount of Ti₃SiC₂ was higher than 76 wt%, the flexural strength increased obviously while friction coefficient and wear rate decreased obviously.

Key words: Ti₃SiC₂; infiltration-sintering; friction and wear; wear mechanism

Corresponding author: XIAO Qi-dan, School of Materials Science and Engineering, Xi’an University of Technology, Xi’an 710048, China

E-mail: xiaoqidan253@163.com 

Tribology, Vol. 30, Issue 4, 2010, 367~372