Effect of the milling conditions on the formation of nanostructured Fe-Co powders

被引：27

作者：

Alleg, Safia ^{[1
]}

Bentayeb, Fatima Zohra ^{[1
]}

Bensalem, Rachid ^{[1
]}

Djebbari, Chafia ^{[1
]}

Bessais, Lotfi ^{[2
]}

Greneche, Jean Marc ^{[3
]}

机构：

[1] Univ Annaba, Fac Sci, Dept Phys, Lab Magnetisme & Spect Solides, Annaba 23000, Algeria

[2] CNRS, Lab Chim Met Terres Rares, Grp Labs Thiais, F-94320 Thiais, France

[3] Univ Maine, CNRS, UMR 6087, Lab Phys Etat Condense, F-72085 Le Mans, France

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2008年 / 205卷 / 07期

关键词：

D O I：

10.1002/pssa.200824040

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanostructured Fe-12Co (wt%) powders were prepared by mechanical alloying in a planetary ball mill. The milling process was carried out at different milling conditions. The obtained powders were characterized by X-ray diffraction, Fe-57 Mossbauer spectrometry and magnetic measurements. The low and high speed ball-milling conditions lead to the formation of a single and two-bcc Fe(Co) structure, respectively, having different crystallite sizes, microstrains hyper-fine parameters and magnetic properties. The average hyper-fine magnetic field values: < B >(1) = 34.8 T and < B >(2) = 28.2 T of the two-bcc Fe(Co) structure could be attributed to the nanocrystalline grains and to the grain boundaries, respectively. (c) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：1641 / 1646

页数：6

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