Abstract
CaCu 3 Ti 4 O 12 (CCTO) ceramics doped with Ce4+ and Zr4+ were synthesized by conventional solid state reaction to investigate the effect of multi-doping on giant permittivity and dielectric properties. The phase compositions and dielectric properties of CaCu 3 Ti 4 O 12 , Ca 1−x Ce x Cu 3 Ti 4 O 12 and Ca 1−x Ce x Cu 3 Ti 3.95 Zr 0.05 O 12 (x=0.5%, 1%, 2%) ceramics were studied by X-ray diffraction (XRD) and impedance spectroscopy etc‥ It was found that through co-doping, the dielectric loss can be reduced while maintaining high dielectric constant. The relaxation behaviors of grain and grain boundaries were fitted via impedance plots. It is shown that the decrease of tanδ is mainly due to the increase of resistance of grain boundaries.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
