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首页> 外文期刊>Journal of Materials Engineering and Performance >Synthesis and Multiferroic Properties of BFO Ceramics by Melt-Phase Sintering
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Synthesis and Multiferroic Properties of BFO Ceramics by Melt-Phase Sintering

机译：熔体烧结法合成BFO陶瓷及其多铁性

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摘要

Multiferroic ceramics (Bi1.1FeO3) were synthesized by the conventional powder metallurgy route by adopting the melt-phase sintering followed by rapid thermal quenching technique. Effect of sintering temperature on physical, structural, microstructural, electric, and magnetic properties was studied. X-ray diffraction and scanning electron microscopic studies showed that calcination and sintering promoted the desired perovskite (BiFeO3) phase and density of the ceramics. Sintering temperature improved the bulk density of the samples as a result of this leakage current density decreased and electric polarization improved. Sample sintered at 850 °C showed bulk density up to 81%. Electric measurements showed spontaneous polarization, remnant polarization, and coercive field of 14.44 μC/cm2, 5.47 μC/cm2, and 25.50 kV/cm, respectively. Linear behavior of magnetization as a function of applied magnetic field confirms the antiferromagnetic nature of the BiFeO3 compound at room temperature.
机译：采用熔融相烧结，快速热淬火技术，通过常规粉末冶金法合成了多铁陶瓷（Bi 1.1 FeO 3 ）。研究了烧结温度对物理，结构，微结构，电和磁性能的影响。 X射线衍射和扫描电子显微镜研究表明，煅烧和烧结促进了所需的钙钛矿（BiFeO 3 ）相和密度的增加。烧结温度提高了样品的堆积密度，这是因为该漏电流密度降低并且电极化提高了。在850°C下烧结的样品的堆积密度高达81％。电学测量显示自发极化，残余极化和矫顽场分别为14.44μC/ cm 2 ，5.47μC/ cm 2 和25.50 kV / cm。磁化强度与施加磁场的线性关系证实了BiFeO 3 化合物在室温下的反铁磁性质。

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