ISSN   1004-0595

CN  62-1224/O4

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熔渗烧结Ti3SiC2陶瓷材料的摩擦磨损性能研究

Friction and Wear Characteristics of Ti3SiC2 by Infiltration-sintering

  • 摘要: 采用熔渗烧结技术制备Ti3SiC2陶瓷材料,利用XRD-7000型X射线衍射仪、INSTRON-1195型电子万能试验机、HST-100型销-盘式摩擦磨损试验机和JSM-6700F型扫描电子显微镜对Ti3SiC2陶瓷烧结试样的相成分、抗弯强度、带电干摩擦条件下的摩擦磨损性能进行了试验分析。结果表明:随着烧结试样中Ti3SiC2含量的增加,材料的抗弯强度增大,摩擦系数与磨损率降低,材料表现出良好的摩擦学性能,磨损机制以黏着磨损为主。当Ti3SiC2含量达到76%左右时,材料抗弯强度开始明显增加;摩擦系数与磨损率明显减小。

     

    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.

     

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