中国物理B ›› 2025, Vol. 34 ›› Issue (4): 46107-046107.doi: 10.1088/1674-1056/adb8b7

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Design and preparation of amorphous carbon nanotubes reinforced copper

Xiaona Ren(任晓娜)†, Wentao Wu(吴文涛), Zhipei Chen(陈志培), and Changchun Ge(葛昌纯)   

  1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • 收稿日期:2025-01-03 修回日期:2025-02-08 接受日期:2025-02-21 出版日期:2025-04-15 发布日期:2025-04-15
  • 通讯作者: Xiaona Ren E-mail:renxn@ustb.edu.cn

Design and preparation of amorphous carbon nanotubes reinforced copper

Xiaona Ren(任晓娜)†, Wentao Wu(吴文涛), Zhipei Chen(陈志培), and Changchun Ge(葛昌纯)   

  1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • Received:2025-01-03 Revised:2025-02-08 Accepted:2025-02-21 Online:2025-04-15 Published:2025-04-15
  • Contact: Xiaona Ren E-mail:renxn@ustb.edu.cn

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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

Abstract: 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.

Key words: amorphous carbon nanotubes, copper-based composite, interpenetrating composites, mesoporous, conductivity

中图分类号:  (Powders, porous materials)

  • 61.43.Gt
61.46.-w (Structure of nanoscale materials) 61.48.De (Structure of carbon nanotubes, boron nanotubes, and other related systems) 62.23.Pq (Composites (nanosystems embedded in a larger structure))