Influence of dispersion state of carbon nanotubes on electrical conductivity of copper matrix composites
Influence of dispersion state of carbon nanotubes on electrical conductivity of copper matrix composites
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DOI：
10.1016/j.jallcom.2018.04.129
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发表时间：
2018-07-05
影响因子：
6.2
通讯作者：
Li, Caiju
中科院分区：
文献类型：
--
作者：
Yang, Ping;You, Xin;Li, Caiju
研究了碳纳米管（CNTs）的分散状态对铜基复合材料导电性能的影响。然而，有趣地发现，具有均匀分散的CNT的复合材料具有最低的电导率（90.47 +/-0.34IACS %（国际退火铜标准）），并且具有聚集的CNT的复合材料具有最好的电导率（93.45 +/-0.17IACS %）。这种现象是由于分散的碳纳米管通过碳纳米管和铜之间的界面散射破坏了铜的互连导电网络。因此，碳纳米管的分散性不是获得高导电性的关键。(C)2018爱思唯尔B. V.保留所有权利。
In this paper, effect of dispersion state of carbon nanotubes (CNTs) on electrical conductivity of copper (Cu)-matrix composites was investigated. While, it is interestingly found that composite with homo-geneous dispersion CNTs has the lowest electrical conductivity (90.47 +/- 0.34 IACS% (International Annealed Copper Standard)) and that one with aggregation CNTs has the best conductivity (93.45 +/- 0.17 IACS%). This phenomenon was attributed to interconnected conductive networks of Cu damaged by adding dispersed CNTs through interface scattering between CNTs and Cu. Thus, it can be concluded that the dispersion of CNTs is not the key point to obtain high electrical conductivity of CNT/Cu composites. (C) 2018 Elsevier B.V. All rights reserved.