Multiwalled carbon nanotubes as a unique agent to fabricate nanostructure-controlled functionally graded alumina ceramics

被引：37

作者：

Estili, Mehdi ^{[1
]}

Takagi, Kenta ^{[1
]}

Kawasaki, Akira ^{[1
]}

机构：

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

来源：

SCRIPTA MATERIALIA | 2008年 / 59卷 / 07期

关键词：

carbon nanotubes; ceramic matrix composites (CMC); functionally graded materials (FGM); powder technology; nanocomposites;

D O I：

10.1016/j.scriptamat.2008.05.042

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Multiwalled carbon nanotubes (CNTs) have been employed for the first time to fabricate bulk, layered, nanostructure-controlled functionally graded (FG) alumina ceramics using a recently established powder technology. Gradual and homogeneous incorporation of the CNTs within the alumina ceramic shows promise to effectively cause in-depth gradients in microstructure, grain size and hardness. The FG concept offers the potential to successfully bridge conventional ceramics to their nanocomposites containing a high concentration of CNTs. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：703 / 705

页数：3

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