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Effect of different preparing methods on the microstructures and dielectric relaxation behaviors of CaCu3Ti4O12 ceramics
Author(s)
Makcharoen, Worawut
Date Issued
January 1, 2013
Type
Article
Abstract
In this work, we report the dielectric properties and microstructure of the CaCu3Ti4O12 (CCTO) ceramics, it were prepared with different techniques. The ball-milling and vibro-milling techniques were used in this study. The dielectric constant (εr) of CCTO ceramic samples, which were prepared by the vibro-milling and sintered at 1100°C for 4h have had a higher dielectric constant of CCTO ceramics which were prepared by the ball-milling technique. These vibro-milled CCTO ceramics also possess excellent dielectric constant even at the higher frequency (10-100 kHz) while their dielectric loss is having still under 0.1 at temperatures not over 100°C. This vibro-milled CCTO ceramics offer a promising candidate for resistance random access memory applications, especially in the frequency range of 10-100 kHz. © 2013 Copyright Taylor and Francis Group, LLC.
Citation
Ferroelectrics, 456(1), 120-127, 2013