Multifunctional Properties of Alumina Composites Reinforced by a Hybrid Filler

被引：14
|
作者：
Ahmad, Kaleem [1 ]
Pan, Wei [1 ]
Qu, Zhixue [1 ]
机构：
[1] Tsinghua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
来源：
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2009年 / 6卷 / 01期
基金：
中国国家自然科学基金;
关键词：
WALL CARBON NANOTUBES; THERMAL-CONDUCTIVITY; ELECTRICAL-PROPERTIES; FRACTURE-TOUGHNESS; MATRIX; MICROSTRUCTURE; NANOCOMPOSITES; MECHANISMS; STRENGTH; POLYMER;
D O I：
10.1111/j.1744-7402.2008.02257.x
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：
Hybrid microstructure design has been used to fabricate alumina composites reinforced by 5 vol% of multiwalled carbon nanotube (MWNT) together with different (1, 2, 3 vol%) contents of SiC nanoparticles by spark plasma sintering. The mechanical, thermal, and electrical properties of the composites were determined as a function of the SiC volume fraction. The thermal conductivity decreased for 1 and 2 vol% of SiC, while for 3 vol%, it increased. Substantial improvements in the fracture toughness, bending strength, and electrical conductivity were observed and attributed to a synergetic effect of the MWNT and SiC nanoparticles in the hybrid microstructure design.
引用
收藏
页码：80 / 88
页数：9
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