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Characterization of Bi_6Fe_2Ti_3O_(18) Ceramics with impedance Spectroscopy

机译:Bi_6Fe_2Ti_3O_(18)陶瓷的阻抗谱表征

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摘要

In the present research the tool of impedance spectroscopy was utilized to characterize dielectric behavior of Aurivillius-type ceramics of Bi_6Fe_2Ti_3O_(18) composition fabricated by hot pressing method from the stoichiometric mixture of oxides Bi_2O_3, TiO_2 and Fe_2O_3. Impedance spectroscopy was applied to characterize dielectric response of bulk, grain boundary, and material/electrode interfaces of the fabricated polycrystalline ceramic material at both room and elevated temperature. The Kramers-Kronig data validation test was employed in the impedance data analysis. Experimental data were fitted using the CNLS fitting method. Agreement between experimental and simulated data was established.
机译:在本研究中,利用阻抗谱工具来表征由Bi_2O_3,TiO_2和Fe_2O_3的化学计量混合物通过热压法制备的Bi_6Fe_2Ti_3O_(18)组成的Aurivillius型陶瓷的介电性能。阻抗光谱法用于表征在室温和高温下所制造的多晶陶瓷材料的体积,晶界和材料/电极界面的介电响应。在阻抗数据分析中采用了Kramers-Kronig数据验证测试。实验数据采用CNLS拟合方法进行拟合。建立了实验数据与模拟数据之间的一致性。

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