Carbon nanotubes reinforced copper composite with uniform CNT distribution and high yield of fabrication

Liangfu Zheng; Jianren Sun; Quanfang Chen

Carbon nanotubes reinforced copper composite with uniform CNT distribution and high yield of fabrication

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Author(s): Liangfu Zheng¹ ; Jianren Sun¹ ; Quanfang Chen¹
- Affiliations: 1: MEMS and Nanomaterials Lab , University of Central Florida , Orlando, FL , USA
Source: Volume 12, Issue 10, October 2017, p. 722 – 725
DOI: 10.1049/mnl.2017.0317 , Online ISSN 1750-0443

Received 08/05/2017, Accepted 22/05/2017, Published 01/10/2017

Dispersion of carbon nanotubes (CNTs) in metal matrix composites has been an unsolved issue since the discovery of CNTs. This paper presents a newly developed fabrication process of bulk Cu/CNT composite with uniformly distributed CNTs. That is, copper encapsulated CNTs powders were firstly fabricated by an electrochemical deposition where CNTs can be completely dispersed in the copper electrolyte assisted by sonication, and then the fabricated composite powders were used to make bulk Cu/CNT composite by a powder metallurgy process. The increment in microhardness of Cu/CNT composite after compaction and sintering was observed to be ∼47.6% per 1% CNTs. The developed fabrication process of Cu/CNT composite powders by electrochemical co-deposition can be scaled up to meet specific application needs, and a similar process is expected to be applicable for other metals.

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Carbon nanotubes reinforced copper composite with uniform CNT distribution and high yield of fabrication

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