Mechanical and electrical properties of carbon-nanotube-reinforced CuTi alloy matrix composites

作者：Chu, Ke^*; Jia, Cheng-chang; Li, Wen-sheng; Wang, Ping

来源：Physica Status Solidi A-Applications and Materials Science, 2013, 210(3): 594-599.

DOI：10.1002/pssa.201228549

• alloys
• carbon nanotubes
• electrical properties
• mechanical properties
• metalmatrix composites

It is known that there is a very weak bonding between carbon nanotube (CNT) and pure copper matrix since copper is known to be naturally nonwetting with CNT. In this study, the titanium is applied as a matrix-alloying element and the CNT-reinforced coppertitanium (CuTi) alloy composites (CuTi/CNT) are fabricated by a powder metallurgical method. The results show that CuTi/CNT composites evidently exhibit enhanced interfacial bonding and yield strength while retaining the electronic conductivity of Cu/CNT composites. Improvements in interfacial bonding and mechanical properties of the composites are attributed to the formation of a thin transition layer of TiC at the interface between CNTs and CuTi matrix.

• 出版日期2013-3
• 单位兰州理工大学; 北京科技大学; 兰州交通大学