高能球磨法制备高性能均一分散CNTs/Al5083复合材料  

CNTs/Al5083 Composites of High-performance Uniform and Dispersion Fabricated by High-energy Ball-milling

作　　者：郭鲤[1] 蔡晓兰[1] 李铮[1] 周蕾[1] 彭刚[1] 张文忠[1] 王子阳[1] 

机构地区：[1]昆明理工大学冶金与能源工程学院,昆明650093

出　　处：《材料工程》2017年第11期122-128,共7页Journal of Materials Engineering

基　　金：云南省高校金属粉体制备与设备开发科技创新团队支持计划资助(14051693);云南省重大项目资助(2014FC001)

摘　　要：采用卧式高能球磨法制备0%~2%CNTs/Al5083(质量分数)复合材料,研究球磨时间和CNTs含量对复合材料性能的影响。采用扫描电镜(SEM)和透射电镜(TEM)对复合材料的形貌进行表征,测试复合材料的抗拉强度及硬度。结果表明:当球磨时间为1.5h时,CNTs可均匀分散在Al5083基体中;CNTs质量分数为1.5%时,CNTs/Al5083界面结合力最好,复合材料的抗拉强度和硬度分别为188.8MPa和136HV,比未加CNTs的Al5083合金基体分别提高了32.2%和36%。Carbon nanotubes （CNTs, mass fraction of 0% ） reinforced A15083 composites were fabricated by horizontal high-energy ball milling. The effects of ball milling time and CNTs contents on the properties of composite materials were studied. The micro morphology of CNTs/Al5083 com-posites was characterized by scanning electron microscopy（SEM） and transmission electron microsco- py（TEM） , the tensile strength and microhardness of the composites were tested. The results indicate that after high-energy ball milling for 1. 5h, the carbon nanotubes are dispersed homogeneously in the A15083 matrix, and good interfacial bonding strength between CNTs and A15083 is obtained at the ad-dition of 1.5% CNTs. Under these conditions, the tensile strength and microhardness of CNTs/ A15083 composites are 188. 8MPa and 136HV, respectively. Compared to A15083 matrix without CNTs reinforcement, tensile strength and microhardness of CNTs/Al5083 composites are increased by 32. 2% and 36 % , respectively.

关 键 词：Al5083 CNTS 高能球磨 力学性能 

分 类 号：TB331[一般工业技术—材料科学与工程]