NDLI: Effect of BiFeO3 doping on the structural, dielectric and electrical properties of CaCu3Ti4O12 ceramics

Content Provider	Springer Nature Link
Author	Dai, Haiyang Liu, Dewei Chen, Jing Xue, Renzhong Li, Tao Xiang, Huiwen Chen, Zhenping Liu, Haizeng
Copyright Year	2014
Abstract	(1 − x)CaCu3Ti4O12–xBiFeO3 (x = 0, 0.003, 0.006, 0.010 and 0.015) ceramics have been fabricated by the solid-state reaction method. The effects of BiFeO3 (BFO) doping on the microstructure, dielectric and electrical properties of CaCu3Ti4O12 (CCTO) ceramics were investigated. It is found that BFO doping can affect the microstructure of the CCTO ceramics, and some properties of CCTO ceramics can hence be improved by BFO doping. The XRD and Raman results show that no phase transition has occurred in the doping content range, but BFO doping induces the crystal structure distortion. Analysis of microstructure indicates that the grain morphology varies significantly with increasing BFO content, and an appropriate amount of BFO can promote the grain growth. Impedance spectroscopy results show that the dielectric constant and loss of the BFO-doped CCTO samples are stable with frequency. The dielectric constant and nonohmic properties can be enhanced markedly in an appropriate doping content. The dielectric loss of all BFO-doped samples was lower than that of undoped CCTO sample in low frequencies. The related mechanism is also discussed in the paper.
Starting Page	233
Ending Page	240
Page Count	8
File Format	PDF
ISSN	09478396
Journal	Applied Physics A
Volume Number	119
Issue Number	1
e-ISSN	14320630
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-12-20
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Condensed Matter Physics Optical and Electronic Materials Nanotechnology Characterization and Evaluation of Materials Surfaces and Interfaces, Thin Films Operating Procedures, Materials Treatment
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Science

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