Thermal and electrical properties of aluminoborosilicate glass-ceramics containing multiwalled carbon nanotubes

被引：17

作者：

Mukhopadhyay, A. ^{[1
]}

Otieno, G. ^{[1
]}

Chu, B. T. T. ^{[1
,2
]}

Wallwork, A. ^{[3
]}

Green, M. L. H. ^{[2
]}

Todd, R. I. ^{[1
]}

机构：

[1] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

[2] Univ Oxford, Inorgan Chem Lab, Oxford OX1 3PH, England

[3] Manchester Mat Sci Ctr, Manchester M1 7HS, Lancs, England

来源：

SCRIPTA MATERIALIA | 2011年 / 65卷 / 05期

关键词：

Nanocomposite; Ceramics; Thermal conductivity; Electrical properties; Carbon nanotubes; BOROSILICATE GLASS; MATRIX COMPOSITES; CONDUCTIVITY; NANOCOMPOSITES; PERCOLATION;

D O I：

10.1016/j.scriptamat.2011.05.023

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report the effects of multiwalled carbon nanotube (MWCNT) dispersions (<= 15 wt.%) on the electrical and thermal conductivities of an aluminoborosilicate glass-ceramic. The electrical conductivity was improved by a factor of similar to 10(6) and the thermal conductivity by similar to 70%. The uniform MWCNT distribution achieved with up to 10 wt.% MWCNT resulted in a relatively high electrical percolation threshold. Thermal conductivity was limited by the low thermal conductivities of the CVD MWCNTs, length reduction during processing and interfacial resistance. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：408 / 411

页数：4

共 29 条

[1] Electrical conductivity and dielectric properties of multiwalled carbon nanotube and alumina composites [J].