Phase evolution and room temperature ferroelectric and magnetic properties of Fe-doped BaTiO3 ceramics

Phase evolution and room temperature ferroelectric and magnetic properties of Fe-doped BaTiO3 ceramics

To make the ferroelectric BaTiO3 possess ferromagnetism simultaneously,magnetic Fe was doped into BaTiO3 ceramics at doping levels up to 10%（molar fraction）.Both tetragonal and hexagonal phases coexisted in the Fe-doped BaTiO3 ceramics except at 1% doping level.X-ray diffraction analysis indicated t...

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Veröffentlicht in:Transactions of Nonferrous Metals Society of China 2010-10, Vol.20 (10), p.1911-1915
1. Verfasser: 邱深玉 李旺 刘宇 刘桂华 吴毅强 陈楠
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Sprache:eng
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射线衍射分析
相演化
钛酸钡陶瓷
铁掺杂
铁电性
铁磁性
饱和磁化强度
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container_end_page 1915
container_issue 10
container_start_page 1911
container_title Transactions of Nonferrous Metals Society of China
container_volume 20
creator 邱深玉 李旺 刘宇 刘桂华 吴毅强 陈楠
description To make the ferroelectric BaTiO3 possess ferromagnetism simultaneously,magnetic Fe was doped into BaTiO3 ceramics at doping levels up to 10%（molar fraction）.Both tetragonal and hexagonal phases coexisted in the Fe-doped BaTiO3 ceramics except at 1% doping level.X-ray diffraction analysis indicated that higher doping level of Fe,higher sintering temperature and longer sintering time promoted the formation of hexagonal phases in Fe-doped BaTiO3 ceramics.Ferroelectricity was observed in all samples at room temperature,but it was greatly depressed by Fe doping.Except at doping level of 1%,room-temperature ferromagnetism was observed in the BaTiO3 ceramics.The dependence of the saturation magnetization and coercivities of the Fe-doped BaTiO3 ceramics on doping level was systematically studied.Both the saturation magnetization and magnetic coercivities were found to be dependent on the doping level as well as the fraction of the hexagonal phase in the ceramics.
doi_str_mv 10.1016/s1003-6326(09)60394-0
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subjects 射线衍射分析
相演化
钛酸钡陶瓷
铁掺杂
铁电性
铁磁性
饱和磁化强度
title Phase evolution and room temperature ferroelectric and magnetic properties of Fe-doped BaTiO3 ceramics
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