Characterization of α-Fe2O3 Nanoparticles Produced by High Energy Ball Milling

被引：0

作者：

Lemine, O. M. ^{[1
]}

Alyamani, A. ^{[2
]}

Sajieddine, M. ^{[3
]}

Bououdina, M. ^{[4
]}

机构：

[1] Imam Univ, Coll Sci, Dept Phys, Riyadh, Saudi Arabia

[2] KACST, Natl Nanotechnol Res Ctr, Riyadh, Saudi Arabia

[3] Sultan Moulay Slimane Univ, Lab Phys & Mecanique Mat, Beni Mellal, Morocco

[4] Univ Bahrain, Coll Sci, Dept Phys, Saar, Bahrain

来源：

PROCEEDINGS OF THE 1ST WSEAS INTERNATIONAL CONFERENCE ON RECENT ADVANCES IN NANOTECHNOLOGY | 2009年

关键词：

Nanoparticles; Hematite; Planetary ball milling; Mossbauer; Rietveld; X-ray diffraction; SEM; HEMATITE; TRANSFORMATION; AIR;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Microstructure and magnetic measurements of milled hematite were studied using the Rietveld analysis based on XRD data and Mossbauer spectrometry. An expansion of the lattice parameters was observed. With increasing the milling time, both Scherrer method and Rietveld analysis show a decrease of the grain. Moreover, some dependence of the lattice parameters on the grain size was observed. Mossbauer spectrometry measurements reveal that there are two kinds of particles coexist in the sample; nanostructured and micrometric hematite. The magnetic hyperfine field is affected by the grain size.

引用

页码：66 / +

页数：2

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