Structural and dielectric properties of la and Nb co-substituted Bi0.5(Na0.84K0.16)0.5TiO3-SrTiO3 ceramics

Rizwan Ahmed Malik; Ali Hussain; Adnan Maqbool; Jamil Ur Rahman; Arif Zaman; Tae Kwon Song; Myong Ho Kim; Won Jeong Kim

doi:10.1109/ICPADM.2015.7295405

Structural and dielectric properties of la and Nb co-substituted Bi_0.5(Na_0.84K_0.16)_0.5TiO₃-SrTiO₃ ceramics

Rizwan Ahmed Malik, Ali Hussain, Adnan Maqbool, Jamil Ur Rahman, Arif Zaman, Tae Kwon Song, Myong Ho Kim, Won Jeong Kim

Changwon National University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

In this article La and Nb co-substitution effect on the crystal structure, microstructure, ferroelectric and dielectric properties of 0.96[(Bi_0.5 (Na_0.84 K_0.16)_0.5)_1-xLa_x(Ti_1-y Nb_y)O₃]-0.04SrTiO₃ (BNKLTN-ST, where (x=y) = 0.00 - 0.020) ceramics has been investigated. The ceramics with x,y ≤ 0.010 have pure perovskite structure, while a secondary phase appears in the sample with x=y = 0.020. X-ray diffraction patterns revealed that La and Nb co-doping resulted in a transition from coexistent rhombohedral and tetragonal phases to pseudocubic symmetry. The co-doping of La and Nb slightly increased the average grain size. The maximum permittivity temperature (T_m) increased with increasing La and Nb contents, but the values of depolarization temperature (T_d) as well as maximum dielectric constant (ε_m) decrease gradually. La and Nb addition interrupted the polarization and reveals that the ferroelectric (FE) order of unmodified BNKT-ST ceramics lead to a declination of remnant polarization along with coercive field. The results shows that La and Nb co-doping into BNKT-ST ceramics induces a phase transition from relaxor FE to ergodic relaxor phase with a substantial deterioration of the long-range FE order.

Original language	English
Title of host publication	ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	848-851
Number of pages	4
ISBN (Electronic)	9781479989034
DOIs	https://doi.org/10.1109/ICPADM.2015.7295405
State	Published - 8 Oct 2015
Externally published	Yes
Event	11th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015 - Sydney, Australia Duration: 19 Jul 2015 → 22 Jul 2015

Publication series

Name	Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials
Volume	2015-October

Conference

Conference	11th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015
Country/Territory	Australia
City	Sydney
Period	19/07/15 → 22/07/15

Keywords

Dielectric properties
Ferroelectricity
Lead-free
piezoelectricity
Relaxor ferroelectrics

Access to Document

10.1109/ICPADM.2015.7295405

Cite this

Malik, R. A., Hussain, A., Maqbool, A., Rahman, J. U., Zaman, A., Song, T. K., Kim, M. H., & Kim, W. J. (2015). Structural and dielectric properties of la and Nb co-substituted Bi_0.5(Na_0.84K_0.16)_0.5TiO₃-SrTiO₃ ceramics. In ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials (pp. 848-851). Article 7295405 (Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials; Vol. 2015-October). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICPADM.2015.7295405

Malik, Rizwan Ahmed ; Hussain, Ali ; Maqbool, Adnan et al. / Structural and dielectric properties of la and Nb co-substituted Bi_0.5(Na_0.84K_0.16)_0.5TiO₃-SrTiO₃ ceramics. ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials. Institute of Electrical and Electronics Engineers Inc., 2015. pp. 848-851 (Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials).

@inproceedings{798ecdb810244f8eac4684b833325f28,

title = "Structural and dielectric properties of la and Nb co-substituted Bi0.5(Na0.84K0.16)0.5TiO3-SrTiO3 ceramics",

abstract = "In this article La and Nb co-substitution effect on the crystal structure, microstructure, ferroelectric and dielectric properties of 0.96[(Bi0.5 (Na0.84 K0.16)0.5)1-xLax(Ti1-y Nby)O3]-0.04SrTiO3 (BNKLTN-ST, where (x=y) = 0.00 - 0.020) ceramics has been investigated. The ceramics with x,y ≤ 0.010 have pure perovskite structure, while a secondary phase appears in the sample with x=y = 0.020. X-ray diffraction patterns revealed that La and Nb co-doping resulted in a transition from coexistent rhombohedral and tetragonal phases to pseudocubic symmetry. The co-doping of La and Nb slightly increased the average grain size. The maximum permittivity temperature (Tm) increased with increasing La and Nb contents, but the values of depolarization temperature (Td) as well as maximum dielectric constant (εm) decrease gradually. La and Nb addition interrupted the polarization and reveals that the ferroelectric (FE) order of unmodified BNKT-ST ceramics lead to a declination of remnant polarization along with coercive field. The results shows that La and Nb co-doping into BNKT-ST ceramics induces a phase transition from relaxor FE to ergodic relaxor phase with a substantial deterioration of the long-range FE order.",

keywords = "Dielectric properties, Ferroelectricity, Lead-free, piezoelectricity, Relaxor ferroelectrics",

author = "Malik, \{Rizwan Ahmed\} and Ali Hussain and Adnan Maqbool and Rahman, \{Jamil Ur\} and Arif Zaman and Song, \{Tae Kwon\} and Kim, \{Myong Ho\} and Kim, \{Won Jeong\}",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 11th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015 ; Conference date: 19-07-2015 Through 22-07-2015",

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doi = "10.1109/ICPADM.2015.7295405",

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Malik, RA, Hussain, A, Maqbool, A, Rahman, JU, Zaman, A, Song, TK, Kim, MH & Kim, WJ 2015, Structural and dielectric properties of la and Nb co-substituted Bi_0.5(Na_0.84K_0.16)_0.5TiO₃-SrTiO₃ ceramics. in ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials., 7295405, Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials, vol. 2015-October, Institute of Electrical and Electronics Engineers Inc., pp. 848-851, 11th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015, Sydney, Australia, 19/07/15. https://doi.org/10.1109/ICPADM.2015.7295405

Structural and dielectric properties of la and Nb co-substituted Bi_0.5(Na_0.84K_0.16)_0.5TiO₃-SrTiO₃ ceramics. / Malik, Rizwan Ahmed; Hussain, Ali; Maqbool, Adnan et al.
ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials. Institute of Electrical and Electronics Engineers Inc., 2015. p. 848-851 7295405 (Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials; Vol. 2015-October).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Malik, Rizwan Ahmed

AU - Hussain, Ali

AU - Maqbool, Adnan

AU - Rahman, Jamil Ur

AU - Zaman, Arif

AU - Song, Tae Kwon

AU - Kim, Myong Ho

AU - Kim, Won Jeong

PY - 2015/10/8

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N2 - In this article La and Nb co-substitution effect on the crystal structure, microstructure, ferroelectric and dielectric properties of 0.96[(Bi0.5 (Na0.84 K0.16)0.5)1-xLax(Ti1-y Nby)O3]-0.04SrTiO3 (BNKLTN-ST, where (x=y) = 0.00 - 0.020) ceramics has been investigated. The ceramics with x,y ≤ 0.010 have pure perovskite structure, while a secondary phase appears in the sample with x=y = 0.020. X-ray diffraction patterns revealed that La and Nb co-doping resulted in a transition from coexistent rhombohedral and tetragonal phases to pseudocubic symmetry. The co-doping of La and Nb slightly increased the average grain size. The maximum permittivity temperature (Tm) increased with increasing La and Nb contents, but the values of depolarization temperature (Td) as well as maximum dielectric constant (εm) decrease gradually. La and Nb addition interrupted the polarization and reveals that the ferroelectric (FE) order of unmodified BNKT-ST ceramics lead to a declination of remnant polarization along with coercive field. The results shows that La and Nb co-doping into BNKT-ST ceramics induces a phase transition from relaxor FE to ergodic relaxor phase with a substantial deterioration of the long-range FE order.

AB - In this article La and Nb co-substitution effect on the crystal structure, microstructure, ferroelectric and dielectric properties of 0.96[(Bi0.5 (Na0.84 K0.16)0.5)1-xLax(Ti1-y Nby)O3]-0.04SrTiO3 (BNKLTN-ST, where (x=y) = 0.00 - 0.020) ceramics has been investigated. The ceramics with x,y ≤ 0.010 have pure perovskite structure, while a secondary phase appears in the sample with x=y = 0.020. X-ray diffraction patterns revealed that La and Nb co-doping resulted in a transition from coexistent rhombohedral and tetragonal phases to pseudocubic symmetry. The co-doping of La and Nb slightly increased the average grain size. The maximum permittivity temperature (Tm) increased with increasing La and Nb contents, but the values of depolarization temperature (Td) as well as maximum dielectric constant (εm) decrease gradually. La and Nb addition interrupted the polarization and reveals that the ferroelectric (FE) order of unmodified BNKT-ST ceramics lead to a declination of remnant polarization along with coercive field. The results shows that La and Nb co-doping into BNKT-ST ceramics induces a phase transition from relaxor FE to ergodic relaxor phase with a substantial deterioration of the long-range FE order.

KW - Dielectric properties

KW - Ferroelectricity

KW - Lead-free

KW - piezoelectricity

KW - Relaxor ferroelectrics

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Malik RA, Hussain A, Maqbool A, Rahman JU, Zaman A, Song TK et al. Structural and dielectric properties of la and Nb co-substituted Bi_0.5(Na_0.84K_0.16)_0.5TiO₃-SrTiO₃ ceramics. In ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials. Institute of Electrical and Electronics Engineers Inc. 2015. p. 848-851. 7295405. (Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials). doi: 10.1109/ICPADM.2015.7295405