Mechanochemical behavior of Fe2O3-Al-Fe powder mixtures to produce Fe3Al-Al2O3 nanocomposite powder

被引：38

作者：

Khodaei, M. ^{[1
]}

Enayati, M. H. ^{[1
]}

Karimzadeh, F. ^{[1
]}

机构：

[1] Isfahan Univ Technol, Dept Mat Engn, Esfahan 8415683111, Iran

来源：

JOURNAL OF MATERIALS SCIENCE | 2008年 / 43卷 / 01期

关键词：

D O I：

10.1007/s10853-007-2123-7

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

Mechanical treatment of Fe2O3, Al and Fe powder mixtures was carried out in a high energy ball mill to synthesize Fe3Al-Al2O3 intermetallic matrix nanocomposite. Different compositions including 3Fe + Al, Fe2O3 + 2Al, 3Fe(2)O(3) + 8Al and Fe2O3 + 3Al+Fe were chosen in this study. Phase development and structural changes occurring during ball milling were investigated by X-ray diffractometry (XRD) and scanning electron microscopy (SEM). The results showed that during MA, Fe2O3, Al, and Fe react to give a nanocrystalline Fe3Al intermetallic compound matrix. The presence of pure Fe in initial powder mixture changed the modality of mechanochemical process from sudden to gradual reaction. The Fe3Al-Al2O3 compound had a finer microstructure and particles size compared to the Fe3Al compound.

引用

页码：132 / 138

页数：7

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