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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 大连理工大学宁波研究院
性别：男
毕业院校：清华大学
学位：博士
所在单位：材料科学与工程学院
学科：材料加工工程
办公地点：辽宁省凝固控制与数字化制备技术重点实验室/大连理工大学铸造中心401
联系方式：0411-84709500
电子邮箱：eyguo@dlut.edu.cn
Fabricating and strengthening the carbon nanotube/copper composite fibers with high strength and high electrical conductivity
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论文类型：期刊论文
发表时间：2018-05-31
发表刊物：APPLIED SURFACE SCIENCE
收录刊物：SCIE、EI
卷号：441
页面范围：984-992
ISSN号：0169-4332
关键字：CNT/Cu composite fibers; Physical vapor deposition; Rolling treatment; Property; Wire material
摘要：Combining the excellent properties of carbon nanotube (CNT) and copper, CNT/Cu composite fibers were fabricated by physical vapor deposition (PVD) and rolling treatment. Dense and continuous copper film (similar to 2 mu m) was coated on the surface of the CNT fibers by PVD, and rolling treatment was adopt to strengthen the CNT/Cu composite fibers. After the rolling treatment, the defects between the Cu grains and the CNT bundles were eliminated, and the structure of both the copper film and the core CNT fibers were optimized. The rolled CNT/Cu composite fibers possess high tensile effective strength (1.01 +/- 0.13 GPa) and high electrical conductivity ((2.6 +/- 0.3) x 10(7) S/m), and thus, this material may become a promising wire material. (C) 2018 Elsevier B.V. All rights reserved.