Structural and magnetic analysis of the transformation of Sn-doped magnetite to Sn-doped hematite by mechanical milling

被引：10
|
作者：
Widatallah, HM
Gismelseed, AM
Yousif, AA
Al-Rawas, AD
Al-Omari, IA
Al-Tai, S
Elzain, ME
Johnson, C
机构：
[1] Sultan Qaboos Univ, Dept Phys, Muscat, Oman
[2] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England
来源：
JOURNAL OF APPLIED PHYSICS | 2005年 / 97卷 / 10期
关键词：
D O I：
10.1063/1.1850407
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Spinel-related Sn-doped Fe3O4 has been ball milled for different times up to 35 h. Milling was found to transform the material to corundum-related Sn-doped alpha-Fe2O3. The influence of the milling time, the crystallite size, and the cationic distribution on transformation process is being analyzed with x-ray diffraction, Mossbauer spectroscopy, and magnetic measurements. The relatively fast spinel-to-corundum structural transformation observed is associated with more Fe 3, ions being reduced to Fe2+ due to doping with Sn4+ ions. (c) 2005 American Institute of Physics.
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