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Colossal dielectric constant of NaNbO3 doped BaTiO3 ceramics

Materials Science-Poland
Volume 34 (2016): Issue 2 (June 2016)
By:
Open Access
|Jun 2016

Figures & Tables

Fig. 1

Temperature dependence of dielectric constant of NN-BT ceramics with different NaNbO3 contents, sintered at 1260 °C and measured at 1 kHz.
Temperature dependence of dielectric constant of NN-BT ceramics with different NaNbO3 contents, sintered at 1260 °C and measured at 1 kHz.

Fig. 2

Temperature dependence of dielectric permittivity of NN-BT ceramics at different sintering temperatures measured at 1 kHz. (a) real part, (b) dielectric loss.
Temperature dependence of dielectric permittivity of NN-BT ceramics at different sintering temperatures measured at 1 kHz. (a) real part, (b) dielectric loss.

Fig. 3

Temperature dependence of dielectric permittivity for the 1270 °C sintered NN-BT ceramics at different frequencies (a) real part of permittivity, dielectric loss.
Temperature dependence of dielectric permittivity for the 1270 °C sintered NN-BT ceramics at different frequencies (a) real part of permittivity, dielectric loss.

Fig. 4

X-ray diffraction patterns of NN-BT ceramic samples.
X-ray diffraction patterns of NN-BT ceramic samples.

Fig. 5

SEM images of cross-sections of NN-BT ceramic samples sintered at (a) 1250 °C, (b) 1260 °C, (c) 1270 °C, (d) 1280 °C and (e) 1290 °C.
SEM images of cross-sections of NN-BT ceramic samples sintered at (a) 1250 °C, (b) 1260 °C, (c) 1270 °C, (d) 1280 °C and (e) 1290 °C.

Fig. 6

XPS of NN-BT samples sintered at 1250 °C and 1270 °C: (a) Ti 2p, (b) O 1s, (c) Ba 3d.
XPS of NN-BT samples sintered at 1250 °C and 1270 °C: (a) Ti 2p, (b) O 1s, (c) Ba 3d.
DOI: https://doi.org/10.1515/msp-2016-0065 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331
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Language: English
Page range: 322 - 329
Submitted on: Jul 1, 2015
Accepted on: May 14, 2016
Published on: Jun 18, 2016
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
BaTiO,
giant dielectric constant,
XPS
Related subjects:
Materials sciences,
Materials sciences, other,
Nanomaterials,
Functional and smart materials,
Materials characterization and properties

© 2016 Wan Q. Cao, Ling F. Xu, Mukhlis M. Ismail, Li L. Huang, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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