Mossbauer and X-ray diffraction investigation of nanocrystalline Fe-O alloys

被引：11

作者：

Lileev, AS

Yagodkin, YD

Reissner, M

Steiner, W

机构：

[1] Moscow State Inst Steel & Alloys, Moscow 119991, Russia

[2] Vienna Univ Technol, A-1040 Vienna, Austria

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2003年 / 258卷

关键词：

nanocrystalline alloys; fe-O powders; Mossbauer spectroscopy; X-ray diffraction analysis;

D O I：

10.1016/S0304-8853(02)01124-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

X-ray and Mossbauer investigations were carried out on powders produced by milling of Fe2O3+alpha-Fe mixtures in a high-energy ball mill and subsequent low-temperature annealing. The nanocrystalline composite alloys obtained as a result of the milling, contained FeO and alpha-Fe with an average crystallite size of 15-20 nm as well as an amorphous phase. Alloys subjected to subsequent annealing contained, however, only alpha-Fe+Fe3O4 with an average crystallite size of about 20 nm. Unlike the starting materials the produced powders had properties, which are characteristic for hard magnetic materials. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：504 / 506

页数：3