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Effect of the Synthesis Route on the Microstructure and the Dielectric Behavior of CaCu 3 Ti 4 O 12 Ceramics
Author(s) -
de la Rubia Miguel A.,
Leret Pilar,
de Frutos Jose,
Fernández José F.
Publication year - 2012
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2012.05144.x
Subject(s) - microstructure , sintering , materials science , dielectric , chemical engineering , dielectric spectroscopy , mineralogy , composite material , chemistry , optoelectronics , electrochemistry , electrode , engineering
CaCu 3 Ti 4 O 12 ( CCTO ) was prepared by a conventional synthesis ( CS ) and through reaction sintering, in which synthesis and sintering of the material take place in one single step. The microstructure and the dielectric properties of CCTO have been studied by XRD , FE ‐ SEM , EDS , AFM , and impedance spectroscopy to correlate structure, microstructure, and electrical properties. Samples prepared by reactive sintering show very similar dielectric behavior to those prepared by CS . Therefore, it is possible to prepare CCTO by means of a single‐step processing method.