文章基本信息

标题：Preparation and Dielectric properties of CCTO and CCTO/MgTiO₃Nanocomposite
本地全文：下载
作者：Supriya.D.M ; Rajani. M. R ; A. R. Phani 等
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2016
卷号：5
期号：8
页码：15561
DOI：10.15680/IJIRSET.2016.0508158
出版社：S&S Publications
摘要：The materials possessing high dielectric constant are widely used in microelectronic devices such as resonators, capacitors and others microelectronic devices where high dielectric constants allow smaller capacitive components, thus contributing to the decrease in size of electronic devices. Calcium Copper Titanate, CaCu3Ti4O12 (CCTO) possess high dielectric constant, which has attracted much attention for the development of capacitors materials for electronic industries. The purpose of this work was to study the effect of MgTiO3 addition to CCTO. In this work the nano-powders of CCTO & MgTiO3 were prepared by Co-precipitation method using surfactant. The powders were subjected to muffle and microwave furnace sintering. CCTO/MgTiO3 composites were prepared by using mixed oxide technique. High temperature and longer time in conventional heating increases the production cost of the materials. In order to retain or reduce the cost, microwave sintering is being developed as a new tool for high temperature processing of materials. The microstructure, structural morphology of the powder & composite has been studied by using XRD and SEM. The dielectric properties of CCTO & CCTO/MgTiO3 composites were investigated using Novotherm alpha-a high performance frequency analyser. Dielectric properties of CCTO and CCTO/MgTiO3 were measured. Frequency dependence of the dielectric constant and dielectric loss were studied.
关键词：CCTO; MgTiO3; Co-precipitation method; nanoparticles; mixed oxide technique; XRD; SEM; Dielectric;properties.