Journal
CERAMICS INTERNATIONAL
Volume 40, Issue 8, Pages 12193-12198Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2014.04.060
Keywords
Perovskite structure; Fe doped TbMnO3; Electric properties
Categories
Funding
- National Natural Science Foundation of China [51331002]
Ask authors/readers for more resources
The ceramic composites of Tb1-xFexMnO3 (x=0.05, 0.1, 0.2, 0.3, 0.4) were synthesized by conventional solid-state reaction. The dielectric constants and loss of composites as a function of temperature (from 77 to 350 K) and frequency (from 0.1 to 200 kHz) were measured. Interestingly, in all composites, Tb0.95Fe0.05MnO3 sample not only enjoys the highest dielectric constants (similar to 10(4)) in the high temperature and low frequency range, but also presents the lowest loss in the high frequency range. Debye-like dielectric dissipation peaks shift to high temperature range with the increase of frequency, which become unobvious in high iron content doping samples. Analysis indicates that the perovsldte structures gradually change with the increase of Fe content and the dielectric properties of TbMnO3 can be improved by adding Fe with appropriate content. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available