Electrically conductive alumina-carbon nanocomposites prepared by Spark Plasma Sintering

被引：93

作者：

Inam, Fawad ^{[1
,2
]}

Yan, Haixue ^{[1
,2
]}

Jayaseelan, Daniel D. ^{[3
]}

Peijs, Ton ^{[1
,2
]}

Reece, Michael J. ^{[1
,2
]}

机构：

[1] Univ London, Mat Res Ctr, London E1 4NS, England

[2] Univ London, Sch Mat Sci & Engn, London E1 4NS, England

[3] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2AZ, England

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2010年 / 30卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

Nanocomposites; Electrical conductivity; Al2O3; Carbon; Spark Plasma Sintering (SPS); COMPOSITES; NANOTUBES;

D O I：

10.1016/j.jeurceramsoc.2009.05.045

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Carbon nanotubes (CNTs) and carbon black were added to alumina to convert it into a good electrical conductor. Alumina-CNT and alumina-carbon black nanocomposites were fabricated by Spark Plasma Sintering (SPS). The electrical conductivity of alumina-CNT nanocomposites was found to be four times higher as compared to alumina-carbon black nanocomposites due to the fibrous nature and high aspect ratio of CNTs. The electrical conductivity of alumina-CNT nanocomposite increased with increasing grain size due to increasing density of CNTs at the grain boundaries. This effect was not observed for alumina-carbon black nanocomposite due to the particulate geometry of the carbon black. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：153 / 157

页数：5

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