Tensile Strength and Electrical Conductivity of Carbon Nanotube Reinforced Aluminum Matrix Composites Fabricated by Powder Metallurgy Combined with Friction Stir Processing

作     者：Z.Y.Liu B.L.Xiao W.G.Wang Z.Y.Ma 

作者机构：Shenyang National Laboratory for Materials ScienceInstitute of Metal ResearchChinese Academy of Sciences Dalian University of Technology Liaoning Shihua University 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2014年第30卷第7期

页      面：649-655页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

基　　金：the support of the National Basic Research Program,China(Grant Nos.2011CB932603 and 2012CB619600) the National Natural Science Foundation, China(Grant No.51331008) 

主　　题：Carbon nanotubes Metal matrix composites Mechanical properties Electrical properties Friction stir processing 

摘      要：A route combining powder metallurgy and subsequent friction stir processing was utilized to fabricate carbon nanotube （CNT） reinforced AI （CNT/AI） and 6061AI （CNT/6061AI） composites. Microstructural observations indicated that CNTs were uniformly dispersed in the matrix in both CNT/AI and CNT/6061AI composites. Mg and Si elements tended to segregate at CNT-AI interfaces in the CNT/6061AI composite during artificial aging treatment. The tensile properties of both the AI and 6061AI were increased by CNT incorporation. The electrical conductivity of CNT/AI was decreased by CNT addition, while CNT/6061AI exhibited an increase in electrical conductivity due to the Mg and Si segregation.