Dielectric and Ferroelectric Properties of Ho<sub>2</sub>O<sub>3</sub> Doped Barium Strontium Titanate Ceramicsq

Mengyuan Zhang; Congyu Li; Fangxu Chen; Long Chen; Jianhua Liu; Tianyu Chen; Chen Zhang

doi:doi:10.11648/j.ijmsa.20190801.12

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Dielectric and Ferroelectric Properties of Ho₂O₃ Doped Barium Strontium Titanate Ceramicsq

Mengyuan Zhang, Congyu Li, Fangxu Chen, Long Chen, Jianhua Liu, Tianyu Chen, Chen Zhang

Published in International Journal of Materials Science and Applications (Volume 8, Issue 1)

Received: 16 July 2018 Accepted: 2 August 2018 Published: 26 June 2019

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Abstract

The crystalline structure, surface morphology, dielectric and ferroelectric properties of 0~10wt% Ho₂O₃ doped (Ba_0.75Sr_0.25) TiO₃ ceramics prepared by conventional solid state method were studied using X-ray diffractometer, scanning electron microscopy, LCR measuring system and ferroelectric property test systems aiming for ceramic capacitor applications. It is found that proper amount of Ho₂O₃ can refine grains of the system. With the increase of Ho₂O₃ doping content, the average grain size of (Ba_0.75Sr_0.25) TiO₃ ceramics decreases. When Ho₂O₃>8 wt%, (Ba_0.75Sr_0.25) TiO₃ based ceramic samples are multi-phase compounds with typical perovskite structure accompanied by the appearance of cylindrical grains. The Ho³⁺ ions substitute the host A sites and B sites of (Ba_0.75Sr_0.25) TiO₃ perovskite lattice, resulting in the lattice distortion of the system and the change of the relative dielectric constant and dielectric loss at room temperature. With the increase of Ho₂O₂ doping content, the relative dielectric constant at room temperature of the system increases first and then decreases. The maximum of relative dielectric constant at room temperature can be found in the 1 wt% Ho₂O₃ doped (Ba_0.75Sr_0.25) TiO₃ ceramics. When Ho₂O₃＞1 wt%, the maximum of relative dielectric constant ε_rmax decreases and the temperature corresponding to the maximum of relative dielectric constant T_m shifts toward lower temperature with the increase of Ho₂O₃ doping content. The (Ba_0.75Sr_0.25) TiO₃ ceramics with high Ho₂O₃ content show relaxor-like behavior which is characterized by the typical diffuse phase transition and frequency dispersion of dielectric constant. However, the (Ba_0.75Sr_0.25) TiO₃ ceramics with low Ho₂O₃ content do not exhibit permittivity frequency dispersion. According to the P-E hysteresis loops of Ho₂O₃ doped (Ba_0.75Sr_0.25) TiO₃ ceramics, the ferroelectricity was increased and then decreased with the increase of Ho₂O₃ doping content. With the increase of Ho₂O₃ doping content, the P-E relationships turn out to be straight lines, implying the paraelectric phase for (Ba_0.75Sr_0.25) TiO₃ ceramics with high Ho₂O₃ content.

Published in	International Journal of Materials Science and Applications (Volume 8, Issue 1)
DOI	10.11648/j.ijmsa.20190801.12
Page(s)	12-20
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

Barium Strontium Titanate, Perovskite, Relaxor Characteristic, Ferroelectric Properties

References

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APA Style

Mengyuan Zhang, Congyu Li, Fangxu Chen, Long Chen, Jianhua Liu, et al. (2019). Dielectric and Ferroelectric Properties of Ho2O3 Doped Barium Strontium Titanate Ceramicsq. International Journal of Materials Science and Applications, 8(1), 12-20. https://doi.org/10.11648/j.ijmsa.20190801.12

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ACS Style

Mengyuan Zhang; Congyu Li; Fangxu Chen; Long Chen; Jianhua Liu, et al. Dielectric and Ferroelectric Properties of Ho2O3 Doped Barium Strontium Titanate Ceramicsq. Int. J. Mater. Sci. Appl. 2019, 8(1), 12-20. doi: 10.11648/j.ijmsa.20190801.12

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AMA Style

Mengyuan Zhang, Congyu Li, Fangxu Chen, Long Chen, Jianhua Liu, et al. Dielectric and Ferroelectric Properties of Ho2O3 Doped Barium Strontium Titanate Ceramicsq. Int J Mater Sci Appl. 2019;8(1):12-20. doi: 10.11648/j.ijmsa.20190801.12

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@article{10.11648/j.ijmsa.20190801.12,
  author = {Mengyuan Zhang and Congyu Li and Fangxu Chen and Long Chen and Jianhua Liu and Tianyu Chen and Chen Zhang},
  title = {Dielectric and Ferroelectric Properties of Ho2O3 Doped Barium Strontium Titanate Ceramicsq},
  journal = {International Journal of Materials Science and Applications},
  volume = {8},
  number = {1},
  pages = {12-20},
  doi = {10.11648/j.ijmsa.20190801.12},
  url = {https://doi.org/10.11648/j.ijmsa.20190801.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20190801.12},
  abstract = {The crystalline structure, surface morphology, dielectric and ferroelectric properties of 0~10wt% Ho2O3 doped (Ba0.75Sr0.25) TiO3 ceramics prepared by conventional solid state method were studied using X-ray diffractometer, scanning electron microscopy, LCR measuring system and ferroelectric property test systems aiming for ceramic capacitor applications. It is found that proper amount of Ho2O3 can refine grains of the system. With the increase of Ho2O3 doping content, the average grain size of (Ba0.75Sr0.25) TiO3 ceramics decreases. When Ho2O3>8 wt%, (Ba0.75Sr0.25) TiO3 based ceramic samples are multi-phase compounds with typical perovskite structure accompanied by the appearance of cylindrical grains. The Ho3+ ions substitute the host A sites and B sites of (Ba0.75Sr0.25) TiO3 perovskite lattice, resulting in the lattice distortion of the system and the change of the relative dielectric constant and dielectric loss at room temperature. With the increase of Ho2O2 doping content, the relative dielectric constant at room temperature of the system increases first and then decreases. The maximum of relative dielectric constant at room temperature can be found in the 1 wt% Ho2O3 doped (Ba0.75Sr0.25) TiO3 ceramics. When Ho2O3＞1 wt%, the maximum of relative dielectric constant εrmax decreases and the temperature corresponding to the maximum of relative dielectric constant Tm shifts toward lower temperature with the increase of Ho2O3 doping content. The (Ba0.75Sr0.25) TiO3 ceramics with high Ho2O3 content show relaxor-like behavior which is characterized by the typical diffuse phase transition and frequency dispersion of dielectric constant. However, the (Ba0.75Sr0.25) TiO3 ceramics with low Ho2O3 content do not exhibit permittivity frequency dispersion. According to the P-E hysteresis loops of Ho2O3 doped (Ba0.75Sr0.25) TiO3 ceramics, the ferroelectricity was increased and then decreased with the increase of Ho2O3 doping content. With the increase of Ho2O3 doping content, the P-E relationships turn out to be straight lines, implying the paraelectric phase for (Ba0.75Sr0.25) TiO3 ceramics with high Ho2O3 content.},
 year = {2019}
}

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TY  - JOUR
T1  - Dielectric and Ferroelectric Properties of Ho2O3 Doped Barium Strontium Titanate Ceramicsq
AU  - Mengyuan Zhang
AU  - Congyu Li
AU  - Fangxu Chen
AU  - Long Chen
AU  - Jianhua Liu
AU  - Tianyu Chen
AU  - Chen Zhang
Y1  - 2019/06/26
PY  - 2019
N1  - https://doi.org/10.11648/j.ijmsa.20190801.12
DO  - 10.11648/j.ijmsa.20190801.12
T2  - International Journal of Materials Science and Applications
JF  - International Journal of Materials Science and Applications
JO  - International Journal of Materials Science and Applications
SP  - 12
EP  - 20
PB  - Science Publishing Group
SN  - 2327-2643
UR  - https://doi.org/10.11648/j.ijmsa.20190801.12
AB  - The crystalline structure, surface morphology, dielectric and ferroelectric properties of 0~10wt% Ho2O3 doped (Ba0.75Sr0.25) TiO3 ceramics prepared by conventional solid state method were studied using X-ray diffractometer, scanning electron microscopy, LCR measuring system and ferroelectric property test systems aiming for ceramic capacitor applications. It is found that proper amount of Ho2O3 can refine grains of the system. With the increase of Ho2O3 doping content, the average grain size of (Ba0.75Sr0.25) TiO3 ceramics decreases. When Ho2O3>8 wt%, (Ba0.75Sr0.25) TiO3 based ceramic samples are multi-phase compounds with typical perovskite structure accompanied by the appearance of cylindrical grains. The Ho3+ ions substitute the host A sites and B sites of (Ba0.75Sr0.25) TiO3 perovskite lattice, resulting in the lattice distortion of the system and the change of the relative dielectric constant and dielectric loss at room temperature. With the increase of Ho2O2 doping content, the relative dielectric constant at room temperature of the system increases first and then decreases. The maximum of relative dielectric constant at room temperature can be found in the 1 wt% Ho2O3 doped (Ba0.75Sr0.25) TiO3 ceramics. When Ho2O3＞1 wt%, the maximum of relative dielectric constant εrmax decreases and the temperature corresponding to the maximum of relative dielectric constant Tm shifts toward lower temperature with the increase of Ho2O3 doping content. The (Ba0.75Sr0.25) TiO3 ceramics with high Ho2O3 content show relaxor-like behavior which is characterized by the typical diffuse phase transition and frequency dispersion of dielectric constant. However, the (Ba0.75Sr0.25) TiO3 ceramics with low Ho2O3 content do not exhibit permittivity frequency dispersion. According to the P-E hysteresis loops of Ho2O3 doped (Ba0.75Sr0.25) TiO3 ceramics, the ferroelectricity was increased and then decreased with the increase of Ho2O3 doping content. With the increase of Ho2O3 doping content, the P-E relationships turn out to be straight lines, implying the paraelectric phase for (Ba0.75Sr0.25) TiO3 ceramics with high Ho2O3 content.
VL  - 8
IS  - 1
ER  -

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Author Information

Mengyuan Zhang

Department of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
Congyu Li

Department of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
Fangxu Chen

Department of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
Long Chen

Department of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
Jianhua Liu

Department of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
Tianyu Chen

Department of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
Chen Zhang

Department of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, China

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APA Style

Mengyuan Zhang, Congyu Li, Fangxu Chen, Long Chen, Jianhua Liu, et al. (2019). Dielectric and Ferroelectric Properties of Ho2O3 Doped Barium Strontium Titanate Ceramicsq. International Journal of Materials Science and Applications, 8(1), 12-20. https://doi.org/10.11648/j.ijmsa.20190801.12

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ACS Style

Mengyuan Zhang; Congyu Li; Fangxu Chen; Long Chen; Jianhua Liu, et al. Dielectric and Ferroelectric Properties of Ho2O3 Doped Barium Strontium Titanate Ceramicsq. Int. J. Mater. Sci. Appl. 2019, 8(1), 12-20. doi: 10.11648/j.ijmsa.20190801.12

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AMA Style

Mengyuan Zhang, Congyu Li, Fangxu Chen, Long Chen, Jianhua Liu, et al. Dielectric and Ferroelectric Properties of Ho2O3 Doped Barium Strontium Titanate Ceramicsq. Int J Mater Sci Appl. 2019;8(1):12-20. doi: 10.11648/j.ijmsa.20190801.12

Copy | Download

@article{10.11648/j.ijmsa.20190801.12,
  author = {Mengyuan Zhang and Congyu Li and Fangxu Chen and Long Chen and Jianhua Liu and Tianyu Chen and Chen Zhang},
  title = {Dielectric and Ferroelectric Properties of Ho2O3 Doped Barium Strontium Titanate Ceramicsq},
  journal = {International Journal of Materials Science and Applications},
  volume = {8},
  number = {1},
  pages = {12-20},
  doi = {10.11648/j.ijmsa.20190801.12},
  url = {https://doi.org/10.11648/j.ijmsa.20190801.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20190801.12},
  abstract = {The crystalline structure, surface morphology, dielectric and ferroelectric properties of 0~10wt% Ho2O3 doped (Ba0.75Sr0.25) TiO3 ceramics prepared by conventional solid state method were studied using X-ray diffractometer, scanning electron microscopy, LCR measuring system and ferroelectric property test systems aiming for ceramic capacitor applications. It is found that proper amount of Ho2O3 can refine grains of the system. With the increase of Ho2O3 doping content, the average grain size of (Ba0.75Sr0.25) TiO3 ceramics decreases. When Ho2O3>8 wt%, (Ba0.75Sr0.25) TiO3 based ceramic samples are multi-phase compounds with typical perovskite structure accompanied by the appearance of cylindrical grains. The Ho3+ ions substitute the host A sites and B sites of (Ba0.75Sr0.25) TiO3 perovskite lattice, resulting in the lattice distortion of the system and the change of the relative dielectric constant and dielectric loss at room temperature. With the increase of Ho2O2 doping content, the relative dielectric constant at room temperature of the system increases first and then decreases. The maximum of relative dielectric constant at room temperature can be found in the 1 wt% Ho2O3 doped (Ba0.75Sr0.25) TiO3 ceramics. When Ho2O3＞1 wt%, the maximum of relative dielectric constant εrmax decreases and the temperature corresponding to the maximum of relative dielectric constant Tm shifts toward lower temperature with the increase of Ho2O3 doping content. The (Ba0.75Sr0.25) TiO3 ceramics with high Ho2O3 content show relaxor-like behavior which is characterized by the typical diffuse phase transition and frequency dispersion of dielectric constant. However, the (Ba0.75Sr0.25) TiO3 ceramics with low Ho2O3 content do not exhibit permittivity frequency dispersion. According to the P-E hysteresis loops of Ho2O3 doped (Ba0.75Sr0.25) TiO3 ceramics, the ferroelectricity was increased and then decreased with the increase of Ho2O3 doping content. With the increase of Ho2O3 doping content, the P-E relationships turn out to be straight lines, implying the paraelectric phase for (Ba0.75Sr0.25) TiO3 ceramics with high Ho2O3 content.},
 year = {2019}
}

Copy | Download

TY  - JOUR
T1  - Dielectric and Ferroelectric Properties of Ho2O3 Doped Barium Strontium Titanate Ceramicsq
AU  - Mengyuan Zhang
AU  - Congyu Li
AU  - Fangxu Chen
AU  - Long Chen
AU  - Jianhua Liu
AU  - Tianyu Chen
AU  - Chen Zhang
Y1  - 2019/06/26
PY  - 2019
N1  - https://doi.org/10.11648/j.ijmsa.20190801.12
DO  - 10.11648/j.ijmsa.20190801.12
T2  - International Journal of Materials Science and Applications
JF  - International Journal of Materials Science and Applications
JO  - International Journal of Materials Science and Applications
SP  - 12
EP  - 20
PB  - Science Publishing Group
SN  - 2327-2643
UR  - https://doi.org/10.11648/j.ijmsa.20190801.12
AB  - The crystalline structure, surface morphology, dielectric and ferroelectric properties of 0~10wt% Ho2O3 doped (Ba0.75Sr0.25) TiO3 ceramics prepared by conventional solid state method were studied using X-ray diffractometer, scanning electron microscopy, LCR measuring system and ferroelectric property test systems aiming for ceramic capacitor applications. It is found that proper amount of Ho2O3 can refine grains of the system. With the increase of Ho2O3 doping content, the average grain size of (Ba0.75Sr0.25) TiO3 ceramics decreases. When Ho2O3>8 wt%, (Ba0.75Sr0.25) TiO3 based ceramic samples are multi-phase compounds with typical perovskite structure accompanied by the appearance of cylindrical grains. The Ho3+ ions substitute the host A sites and B sites of (Ba0.75Sr0.25) TiO3 perovskite lattice, resulting in the lattice distortion of the system and the change of the relative dielectric constant and dielectric loss at room temperature. With the increase of Ho2O2 doping content, the relative dielectric constant at room temperature of the system increases first and then decreases. The maximum of relative dielectric constant at room temperature can be found in the 1 wt% Ho2O3 doped (Ba0.75Sr0.25) TiO3 ceramics. When Ho2O3＞1 wt%, the maximum of relative dielectric constant εrmax decreases and the temperature corresponding to the maximum of relative dielectric constant Tm shifts toward lower temperature with the increase of Ho2O3 doping content. The (Ba0.75Sr0.25) TiO3 ceramics with high Ho2O3 content show relaxor-like behavior which is characterized by the typical diffuse phase transition and frequency dispersion of dielectric constant. However, the (Ba0.75Sr0.25) TiO3 ceramics with low Ho2O3 content do not exhibit permittivity frequency dispersion. According to the P-E hysteresis loops of Ho2O3 doped (Ba0.75Sr0.25) TiO3 ceramics, the ferroelectricity was increased and then decreased with the increase of Ho2O3 doping content. With the increase of Ho2O3 doping content, the P-E relationships turn out to be straight lines, implying the paraelectric phase for (Ba0.75Sr0.25) TiO3 ceramics with high Ho2O3 content.
VL  - 8
IS  - 1
ER  -

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