Design and preparation of amorphous carbon nanotubes reinforced copper  

作　　者：Xiaona Ren Wentao Wu Zhipei Chen Changchun Ge 任晓娜;吴文涛;陈志培;葛昌纯

机构地区：[1]School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China

出　　处：《Chinese Physics B》2025年第4期207-210,共4页中国物理B(英文版)

摘　　要：Carbon nanotubes(CNTs)reinforced copper(CNTs/Cu)is one of the most promising and extensively researched materials for replacing traditional Cu-based materials in high-load and high-current applications,particularly within the aerospace industry.Amorphous carbon nanotubes(aCNTs)are a type of carbon nanotubes characterized by the presence of mesopores distributed across their amorphous sidewalls,facilitating connectivity between the hollow core and the external environment.Therefore,we propose utilizing aCNTs as a reinforcing agent for Cu.The mesoporous structure of aCNTs facilitates the interpenetration of Cu into the aCNTs,thereby maintaining the continuity of the matrix properties.Experimental results demonstrate that Cu effectively penetrates the mesoporous sidewalls of aCNTs.Both pure Cu and aCNTs-reinforced Cu exhibit comparable electrical conductivity,while the hardness of the aCNTs/Cu composite is significantly enhanced.Additionally,both the density and porosity of aCNTs/Cu are lower than those of pure Cu,and the introduction of aCNTs helps to reduce the sintering temperature.

关 键 词：amorphous carbon nanotubes copper-based composite interpenetrating composites MESOPOROUS CONDUCTIVITY 

分 类 号：TB33[一般工业技术—材料科学与工程]