Impact of bismuth titanate for microwave absorber application: a review

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作者
P. Harshapriya
Deepak Basandrai
机构
[1] Lovely Professional University,Department of Physics, School of Physical Sciences and Chemical Engineering
关键词
Microwave absorption; Dielectric property; Ferroelectric property; Bismuth titanate; Structural properties;
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摘要
Bismuth titanate (BTO) owe to high dielectric constant, high dielectric losses, and high temperature coefficient of resonant frequency is considered to be one of the most prominent aspirants for microwave absorption applications. BTO and their composites are also used to diminish the electromagnetic interference in electrical devices, Airplanes, ships and tank radar signals. Several studies have been reported to enhanced the capability of BTO for microwave absorption applications. In such studies, the ferroelectric and dielectric characteristics of Bi4Ti3O12 are found to be improved by doping it with V, La, Sm, and Nd as compared to other dopants. However, Sm-Ta co doped BTO has shown high remanent polarization (46.2 emu/g) and coercive field (102 Oe). The highest dielectric loss was observed in vanadium doped Bi4Ti3O12 which enable it for high temperature applications.
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页码:1 / 11
页数:10
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