基体粉末尺寸对石墨烯/铜复合材料组织的影响  

Effect of copper powder size on the microstructure of graphene/Cu composites

作　　者：张丹丹 沈琰 江炜[1] ZHANG Dan-dan;SHEN Yan;JIANG Wei(Changzhou Institute of Technology,Changzhou 213032,China)

机构地区：[1]常州工学院

出　　处：《世界有色金属》2019年第20期180-181,共2页World Nonferrous Metals

摘　　要：采用石墨烯粉末和片状铜粉为原料,通过球磨和热压烧结的方法制备了石墨烯/铜复合材料,研究了相同工艺下铜粉尺寸对复合材料的组织形貌的影响。结果显示,选用平均片径为10μm、厚度100 nm的铜粉CuP1时复合材料呈现出明显的层状组织,而选用平均片径为1μm、厚度500 nm的铜粉CuP2时复合材料则未呈现明显的层状组织。该研究结果表明,以粉末冶金技术为基础调控金属基体粉末尺寸是实现石墨烯在金属基体中的规则排列的一种简便方法。Using graphene nanoplatelets(GNPs)and flake copper powder as raw materials,GNPs/Cu composites were prepared by ball milling and hot pressing.The effect of copper powder size on the microstructure of the composites under the same process was studied.The results show that the GNPs/Cu composite exhibits obvious layered structure when using copper powder CuP1 with an average sheet diameter of 10μm and a thickness of 100 nm,but the layered microstructure is not observed when using the copper powder CuP2 with an average sheet diameter of 1μm and a thickness of 500 nm.The results prove that controlling the metal matrix powder size based on powder metallurgy technology is a simple method to achieve the regular arrangement of graphene in the metal matrix.

关 键 词：石墨烯 铜基复合材料 微观组织 

分 类 号：TB333[一般工业技术—材料科学与工程]