Electrical properties of nanoceramics reinforced with ropes of single-walled carbon nanotubes

被引：183

作者：

Zhan, GD ^{[1
]}

Kuntz, JD ^{[1
]}

Garay, JE ^{[1
]}

Mukherjee, AK ^{[1
]}

机构：

[1] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 06期

关键词：

D O I：

10.1063/1.1600511

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Single-walled carbon nanotubes (SWCNTs) were used to convert insulating nanoceramics to metallically conductive composites. Dense SWCNT/Al2O3 nanocomposites with CNT contents ranging from 5.7 to 15 vol % and with nanocrystalline alumina matrices have been fabricated by spark-plasma-sintering that retains the integrity of SWCNT in the matrix. The conductivity of these composites increases with increasing content of CNTs. The conductivity has been increased to 3345 S/m in the 15 vol % SWCNT/Al2O3 nanocomposite at room temperature. This is an increase of 13 orders of magnitude over pure alumina and of more than 735% over previously reported results in CNT-ceramic composites. (C) 2003 American Institute of Physics.

引用

页码：1228 / 1230

页数：3

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