期刊
MATERIALS LETTERS
卷 47, 期 3, 页码 150-158出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0167-577X(00)00227-5
关键词
mechanical milling; iron oxide nanoparticle; Mossbauer spectrometry
Hematite alpha -Fe2O3 powder was milled with a dispersing liquid (ethanol) for different times using a conventional planetary ball mill equipped with a steel vial. Both high resolution transmission electron microscopy (HRTEM), X-ray diffraction and zero- and in-field Mossbauer spectrometry measurements reveal that the nanostructured powders contain maghemite, suggesting that our milling conditions favour the direct transformation from alpha -Fe2O, to gamma -Fe2O3. Both the origin and the kinetics of the transformation are discussed in terms of mechanical aspects. (C) 2001 Elsevier Science B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据