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Layered magnetoelectric composite material and preparation method thereof
The invention discloses a layered magnetoelectric composite material and preparation method thereof. The chemical general formula of the layered magnetoelectric composite material is xBiY2Fe5O12/(1-x)0.35BaTiO3-0.65BiFeO3, wherein x is the mass percent of BiY2Fe5O12, x is not less than 11.1% and not more than 33.3%; the preparation method comprises the following steps: carrying out compression molding on 0.35BaTiO3-0.65BiFeO3 and BiY2Fe5O12 powder in a mold according to 2-2 composite layer-stacking overlaying arrangement mode; removing PVA adhesive, and then sintering for 2-4 hours at 1000-1050 DEG.C to form porcelain. By adopting the 2-2 composite layer-stacking overlaying arrangement mode, the ferroelectric and ferromagnetic phases are sintered together in a layered composite mode, the interreaction between two phases can be effectively inhibited, the respective characteristic is maintained, so that the finally prepared layered magnetoelectric composite material has good ferroelectricity as well as good ferromagnetism.
Layered magnetoelectric composite material and preparation method thereof
The invention discloses a layered magnetoelectric composite material and preparation method thereof. The chemical general formula of the layered magnetoelectric composite material is xBiY2Fe5O12/(1-x)0.35BaTiO3-0.65BiFeO3, wherein x is the mass percent of BiY2Fe5O12, x is not less than 11.1% and not more than 33.3%; the preparation method comprises the following steps: carrying out compression molding on 0.35BaTiO3-0.65BiFeO3 and BiY2Fe5O12 powder in a mold according to 2-2 composite layer-stacking overlaying arrangement mode; removing PVA adhesive, and then sintering for 2-4 hours at 1000-1050 DEG.C to form porcelain. By adopting the 2-2 composite layer-stacking overlaying arrangement mode, the ferroelectric and ferromagnetic phases are sintered together in a layered composite mode, the interreaction between two phases can be effectively inhibited, the respective characteristic is maintained, so that the finally prepared layered magnetoelectric composite material has good ferroelectricity as well as good ferromagnetism.
Layered magnetoelectric composite material and preparation method thereof
YANG HAIBO (Autor:in) / ZHANG GE (Autor:in) / LIN YING (Autor:in) / ZHU JIANFENG (Autor:in) / WANG FEN (Autor:in)
06.05.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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