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BaTiO_3 devices doped with Zr using mechanical alloying

机译:机械合金化掺杂Zr的BaTiO_3器件

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摘要

The purpose of this work was to compare the microstructure and electrical characteristics of BaTiO_3 devices doped with Zr for conventional fabrication and for mechanical alloying (MA). The sintered samples fabricated with MA powder showed better ZrO_2 dissolution and smaller grain sizes than the conventional samples. Lower values of loss factor and higher resistivities were observed in devices fabricated with MA powders. When the ZrO_2 concentration increases, the resistivity and the loss factor increase while the dielectric constant decreases. These effects are explained in terms of grain size reduction and lattice distortion.
机译:这项工作的目的是比较传统制造和机械合金化(MA)掺杂Zr的BaTiO_3器件的微观结构和电学特性。与传统样品相比,用MA粉制备的烧结样品表现出更好的ZrO_2溶解度和较小的晶粒尺寸。在使用MA粉制造的设备中,观察到损耗因数较低且电阻率较高。当ZrO_2浓度增加时,电阻率和损耗因子增加,而介电常数降低。这些效果是通过减小晶粒尺寸和晶格畸变来解释的。

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