Investigation of the interfacial reaction between multi-walled carbon nanotubes and aluminum

被引：425

作者：

Ci, Lijie ^{[1
]}

Ryu, Zhenyu ^{[1
]}

Jin-Phillipp, Neng Yun ^{[1
]}

Ruehle, Manfred ^{[1
]}

机构：

[1] Max Planck Inst Met Res, D-70569 Stuttgart, Germany

来源：

ACTA MATERIALIA | 2006年 / 54卷 / 20期

关键词：

chemical vapor deposition (CVD); aluminum; metal matrix composite (MMC); interface structure; carbon nanotubes (CNTs);

D O I：

10.1016/j.actamat.2006.06.031

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Aluminum (Al)/carbon nanotube (CNT) composite films were fabricated by sputtering pure Al on the surface of aligned multi-walled CNT arrays. Heat treatment was performed in the temperature range 400-950 degrees C. The interfacial reaction between the Al and the CNTs was investigated by annealing the samples at various temperatures. The results indicated that aluminum carbide (Al4C3) was formed at the interface between the Al and CNT layers, and microscopy observation revealed that the reaction generally occurred at locations containing an amorphous carbon coating, at defect sites, and at open ends of CNTs. Because the nanosized CNTs are precursors for carbide formation, the Al4C3 formed is also nanoscale in size. The carbide formed on the surface as well as on the tips of the CNTs improves the interfacial interaction between the CNTs and the Al layers. This also contributes to the enhancement of the mechanical properties of the composite. Our investigation demonstrated that chemical vapor deposited CNTs are a suitable candidate as reinforcing material for Al and other metal matrices. (c) 2006 Acta Materialia, Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：5367 / 5375

页数：9

共 19 条

[1] Preparation, microstructure and properties of Al-Al4C3 system produced by mechanical alloying [J].