文章基本信息

标题：Impedance Spectroscopy of Zr Modified Ba5SmZr3V7O30 Ceramic
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作者：B. K. Giri ; B. B. Mohanty ; P. S. Sahoo 等
期刊名称：Open Access Library Journal
印刷版ISSN：2333-9705
电子版ISSN：2333-9721
出版年度：2018
卷号：5
期号：6
页码：1-5
DOI：10.4236/oalib.1104639
语种：English
出版社：Scientific Research Pub
摘要：Ba5SmZr3V7O30 is a new tungsten bronze structured ceramic compound prepared by substituting Zr at Ti site in Ba5GdTi3V7O30 following high-temperature solid-state reaction route. The X-ray diffraction analysis of the compound confirms the formation of single-phase orthorhombic structures at room temperature. Surface morphology of the compound was studied by scanning electron microscopy. Using a Hioki LCR meter, the effects of temperature (32℃ - 500℃) and frequency (102 - 106 Hz) on structural and electrical properties were studied. Detailed analysis of impedance parameters furnishes a better conception of the electrical properties and type of relaxation processes in the material. The plateau region of the Z’~ frequency plot also indicates the presence of relaxation process in the material. The bulk resistance is observed to be decreased with rise in temperature showing a typical negative temperature coefficient of resistance (NTCR) behavior.
关键词：CeramicsTungsten Bronze StructureSolid-State ReactionX-Ray Diffraction