Extrusion of Spark Plasma Sintered Aluminum-Carbon Nanotube Composites at Various Sintering Temperatures

被引：30

作者：

Kwon, Hansang ^{[1
]}

Kawasaki, Akira ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Mat Proc, Aoba Ku, Sendai, Miyagi 9808579, Japan

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2009年 / 9卷 / 11期

关键词：

Metal Matrix Composites; Carbon Nanotube (CNT); Powder Processing; Spark Plasma Sintering (SPS); Hot Extrusion; FABRICATION; NANOCOMPOSITES; BEHAVIOR;

D O I：

10.1166/jnn.2009.1357

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The combined processes of spark plasma sintering and hot extrusion were used to fabricate a multi-walled carbon nanotube (MWCNT) reinforced aluminum (Al) matrix composite. The structural defects of carbon nanotubes (CNT) at various sintering temperatures were investigated by Raman spectroscopy. A small amount of Al liquid phase was generated and it reacted with disordered CNTs, even during the solid-state spark plasma sintering process. The influence of Al carbides generated by the reaction between Al and disordered CNTs is discussed from a microstructural viewpoint and in relation to tensile strength. We conclude that structurally controlled CNTs could potentially be attractive for metal matrix applications, and could significantly improve the mechanical properties of Al-CNT composites.

引用

页码：6542 / 6548

页数：7

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