Nanocomposite formation in the Fe2O3-M (M=Al,Ti,Zn,Cu) systems by mechanical alloying

被引：6

作者：

Lee, CH ^{[1
]}

Lee, SH

Chun, SY

Lee, SJ

Kwon, YS

机构：

[1] Mokpo Natl Univ, Dept Adv Mat Sci & Engn, Muan 534729, South Korea

[2] Univ Ulsan, Res Ctr Machine Parts & Mat Proc, Ulsan 680749, South Korea

来源：

DESIGNING, PROCESSING AND PROPERTIES OF ADVANCED ENGINEERING MATERIALS, PTS 1 AND 2 | 2004年 / 449-4卷

关键词：

mechanical alloying; nanocomposite; scanning electron micrographs; mechanochernical reaction; reaction heats;

D O I：

10.4028/www.scientific.net/MSF.449-452.253

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：

Nanocomposite formation of metal-metal oxide systems by mechanical alloying (MA) has been investigated at room temperature. The systems we chose are the Fe2O3-M (M=AI,Ti,Zn.Cu), where pure metals are used as reducing agent. It is found that nanocomposite powders in which Al2O3 and TiO2 are dispersed in Fe matrix with nano-sized grains are obtained by mechanical alloying Fe2O3 with Al and Ti, respectively. However, the reduction of Fe2O3 with Cu by MA is not occurred. And the system of Fe2O3-Zn results in the formation of FeO plus ZnO after 120 h. of milling. It is also shown that the magnetic evidence for the solid state reduction by mechanical alloying through changes in saturation magnetization and coercivity.

引用

页码：253 / 256

页数：4

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