Effect of Ball Milling on the Defeat of Few-Layer Graphene and Properties of Copper Matrix Composites

查看全文 作　　者：Ye [1]Cui;Lidong [1]Wang;Bin [1]Li;Guojian [2]Cao;Weidong [1,3]Fei

机构地区：[1]School of Materials Science and Engineering,Harbin Institute of Technology;[2]School of Materials Science and Engineering,Harbin University of Science and Technology;[3]School of Mechanical Engineering,Qinghai University

出　　处：《Acta Metallurgica Sinica(English Letters)》索引2014年第27卷第5期,共7页

基　　金：financially supported by the National Basic Research Program of China (No.2011CB612200);Program of Qinghai Science and Technology Department (2012-Z701);China Scholarship Council (No.201206125006);Harbin Key Technologies R&D Program (2012DB2CP029) 摘　　要：Graphene-reinforced copper composites recently have attracted more attention, since they exhibited excellent mechanical properties and could be used widely in many fields. Few-layer graphene(FLG) and copper powder were mixed by ball milling to produce homogeneous composite powders. Then, FLG-reinforced copper composites(FLG/Cu) were fabricated by spark plasma sintering(SPS) using the composite powders with a FLG volume fraction of 2.4 vol%. The effects of the rotating speed and the time of ball milling were analyzed based on the microstructure evolution and properties of the FLG/Cu composites. Obvious strengthening effect of FLG was found for the composites, and the conductance of the composite reaches 70.4% of IACS. The yield strength of the composite produced by ball milling at a speed of 100 r/min for 4 h is 376 MPa, which is 2.5 times higher than that of copper and higher than that of copper composite enhanced by 5 vol% CNTs(360 MPa). The defects produced in FLG with the increase of rotating speed and time could reduce the mechanical and conductive properties of the composites. 关键词：复合材料性能球磨时间铜基石墨放电等离子烧结体积分数微观结构演变旋转速度

相关文献

参考文献（16）
引证文献（9）
耦合文献（0）

参考文献(16)

引证文献(9)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Effect of Ball Milling on the Defeat of Few-Layer Graphene and Properties of Copper Matrix Composites

参考文献(16)

引证文献(9)

用户提示