Mossbauer Studies of Local Environments of 57Fe in Iron Oxide Particles Dispersed Fe Matrix

被引：3

作者：

Singh, L. Herojit ^{[1
]}

Govindaraj, R. ^{[1
]}

Kumar, P. A. Manoj ^{[1
]}

Amarendra, G. ^{[1
]}

Sundar, C. S. ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Mat Sci Grp, Kalpakkam 603102, Tamil Nadu, India

来源：

SOLID STATE PHYSICS: PROCEEDINGS OF THE 55TH DAE SOLID STATE PHYSICS SYMPOSIUM 2010, PTS A AND B | 2011年 / 1349卷

关键词：

Mossbauer spectroscopy; nano particles; iron oxide; MAGNETIC-PROPERTIES;

D O I：

10.1063/1.3605915

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Mixture of iron with 25 wt% of hematite has been subjected to high energy ball milling and Mossbauer measurements have been carried out at room temperature in the as ball milled condition and subsequent to annealing at different elevated temperatures at a pressure of 10(-6) mbar. Mossbauer results imply the dispersion of alpha-Fe2O3 particles in metallic iron matrix in the as ball milled sample. Evolution of alpha-Fe2O3 in to gamma-Fe2O3, Fe3O4 and FeO by means of reducing the valence of Fe ion of the oxide due to vacuum annealing in the range of 600-1000 K in this ball milled mixture has been elucidated in the present study.

引用

页码：423 / 424

页数：2

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