Nanophase iron oxides by ball-mill grinding and their Mossbauer characterization

被引：36
|
作者：
Bid, S
Banerjee, A
Kumar, S
Pradhan, SK
De, UY
Banerjee, D
机构：
[1] Univ Calcutta, Dept Phys, Kolkata 700009, W Bengal, India
[2] Univ Burdwan Golapbag, Dept Phys, Burdwan 713104, W Bengal, India
[3] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Dept Atom Energy, Kolkata 700064, W Bengal, India
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2001年 / 326卷 / 1-2期
关键词：
ball-milling; alpha-Fe2O3; nanophase; X-ray diffraction; Mossbauer spectra;
D O I：
10.1016/S0925-8388(01)01287-7
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ball-mill grinding of ferric oxide, Fe2O3. to obtain nanophase samples has been undertaken for different duration with repeated X-ray diffraction monitoring of nanophase formation. Particle size and strain have been calculated from XRD patterns, for different periods of ballmilling at 300 rpm. Mossbauer spectra of as-supplied or bulk iron oxides and these finely ballmilled samples have been compared looking for the signature of superparamagnetism possible in the nanophase samples. (C) 2001 Elsevier Science BY. All rights reserved.
引用
收藏
页码：292 / 297
页数：6
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