Pressureless Sintering and Properties of Cu/Ti3AlC2 Composites
The Cu/Ti3AlC2 composites were fabricated by pressureless sintering a mixture of Ti3AlC2 and copper powders.Their microstructures and properties were investigated.It was found that the molten Cu accelerating the decomposition of Ti3AlC2,inducing the interracial exfoliation to generate,and forming a sub-micro-layered structure making up of TiCx layers and Cu-Al alloy layers within a Ti3AlC2 grain.The flexural strength of the composites is reduced with the increase of the volume content of Ti3AlC2 from 50 % to 90 %.The highest flexural strength reaches to as high as 915 MPa.The fracture mode was changed from ductile to brittle with increase in the content of Ti3AlC2.The higher flexural strength can be attributed to a stronger interface bond between TiCx and Cu-Al phase.The electrical resistivity and Vickers hardness of the composites were also measured.
Cu/Ti3AlC2 Pressureless sintering Flexural strength Electrical resistivity
Huang Zhenying Zhai Hongxiang Ai Mingxing Wang Yi Zhang Hongbing
School of Mechanical and Electric Control Engineering,Beijing Jiaotong University,Beijing 100044,China
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
998-1000
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）