Dielectric relaxation and electrical properties of Bi                         2.5                         Nd                         0.5                         Nb                         1.5                         Fe                         0.5                         O                         9                          ceramics

Fida Rehman; Jing Bo Li; Iftikhar Ahmad; Hai Bo Jin; Pervaiz Ahmad; Yasir Saeed; Muhammad Shafiq; Hazrat Ali; Muhammad Imtiaz Khan; Tariq Ali

doi:10.1016/j.matchemphys.2019.01.025

Dielectric relaxation and electrical properties of Bi _2.5 Nd _0.5 Nb _1.5 Fe _0.5 O ₉ ceramics

Fida Rehman^*, Jing Bo Li, Iftikhar Ahmad, Hai Bo Jin, Pervaiz Ahmad, Yasir Saeed, Muhammad Shafiq, Hazrat Ali, Muhammad Imtiaz Khan, Tariq Ali

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Aurivillius single-phase Bi _2.5 Nd _0.5 Nb _1.5 Fe _0.5 O ₉ (BNNF) ceramics was synthesized via solid state mixed oxide sintering method. Electrical properties of the samples were intensely studied in a wide range of temperature (25 °C–650 °C). Dielectric behaviors were investigated by dielectric and impedance spectroscopies in the range (40 Hz−10 MHz) of frequency. Single dielectric relaxation was observed due to the grains contribution. The phase transition temperature (T _C ) was noticed at ∼270 °C. Kinetic analysis of dielectric data was used to understand the possible relaxation-conduction behaviors in the ceramics. Above ∼250 °C, relaxation and conduction of the ceramics was assigned to the motion of ionized oxygen vacancies. The Aurivillius ceramics has promising industrial applications in dielectric capacitors and piezoelectric transducers due to low leakage below ∼200 °C. The results could be valuable for designing and/or modifying properties of BNNF related materials.

Original language	English
Pages (from-to)	100-105
Number of pages	6
Journal	Materials Chemistry and Physics
Volume	226
DOIs	https://doi.org/10.1016/j.matchemphys.2019.01.025
Publication status	Published - 15 Mar 2019

Keywords

Aurivillius compound
Defects
Dielectric
Electrical properties
Impedance analysis

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10.1016/j.matchemphys.2019.01.025

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Rehman, F., Li, J. B., Ahmad, I., Jin, H. B., Ahmad, P., Saeed, Y., Shafiq, M., Ali, H., Khan, M. I., & Ali, T. (2019). Dielectric relaxation and electrical properties of Bi _2.5 Nd _0.5 Nb _1.5 Fe _0.5 O ₉ ceramics Materials Chemistry and Physics, 226, 100-105. https://doi.org/10.1016/j.matchemphys.2019.01.025

Rehman, Fida ; Li, Jing Bo ; Ahmad, Iftikhar et al. / Dielectric relaxation and electrical properties of Bi _2.5 Nd _0.5 Nb _1.5 Fe _0.5 O ₉ ceramics In: Materials Chemistry and Physics. 2019 ; Vol. 226. pp. 100-105.

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title = " Dielectric relaxation and electrical properties of Bi 2.5 Nd 0.5 Nb 1.5 Fe 0.5 O 9 ceramics ",

abstract = " Aurivillius single-phase Bi 2.5 Nd 0.5 Nb 1.5 Fe 0.5 O 9 (BNNF) ceramics was synthesized via solid state mixed oxide sintering method. Electrical properties of the samples were intensely studied in a wide range of temperature (25 °C–650 °C). Dielectric behaviors were investigated by dielectric and impedance spectroscopies in the range (40 Hz−10 MHz) of frequency. Single dielectric relaxation was observed due to the grains contribution. The phase transition temperature (T C ) was noticed at ∼270 °C. Kinetic analysis of dielectric data was used to understand the possible relaxation-conduction behaviors in the ceramics. Above ∼250 °C, relaxation and conduction of the ceramics was assigned to the motion of ionized oxygen vacancies. The Aurivillius ceramics has promising industrial applications in dielectric capacitors and piezoelectric transducers due to low leakage below ∼200 °C. The results could be valuable for designing and/or modifying properties of BNNF related materials.",

keywords = "Aurivillius compound, Defects, Dielectric, Electrical properties, Impedance analysis",

author = "Fida Rehman and Li, {Jing Bo} and Iftikhar Ahmad and Jin, {Hai Bo} and Pervaiz Ahmad and Yasir Saeed and Muhammad Shafiq and Hazrat Ali and Khan, {Muhammad Imtiaz} and Tariq Ali",

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doi = "10.1016/j.matchemphys.2019.01.025",

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Rehman, F, Li, JB, Ahmad, I, Jin, HB, Ahmad, P, Saeed, Y, Shafiq, M, Ali, H, Khan, MI & Ali, T 2019, ' Dielectric relaxation and electrical properties of Bi _2.5 Nd _0.5 Nb _1.5 Fe _0.5 O ₉ ceramics ', Materials Chemistry and Physics, vol. 226, pp. 100-105. https://doi.org/10.1016/j.matchemphys.2019.01.025

Dielectric relaxation and electrical properties of Bi _2.5 Nd _0.5 Nb _1.5 Fe _0.5 O ₉ ceramics . / Rehman, Fida; Li, Jing Bo; Ahmad, Iftikhar et al.
In: Materials Chemistry and Physics, Vol. 226, 15.03.2019, p. 100-105.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Dielectric relaxation and electrical properties of Bi 2.5 Nd 0.5 Nb 1.5 Fe 0.5 O 9 ceramics

AU - Rehman, Fida

AU - Li, Jing Bo

AU - Ahmad, Iftikhar

AU - Jin, Hai Bo

AU - Ahmad, Pervaiz

AU - Saeed, Yasir

AU - Shafiq, Muhammad

AU - Ali, Hazrat

AU - Khan, Muhammad Imtiaz

AU - Ali, Tariq

PY - 2019/3/15

Y1 - 2019/3/15

N2 - Aurivillius single-phase Bi 2.5 Nd 0.5 Nb 1.5 Fe 0.5 O 9 (BNNF) ceramics was synthesized via solid state mixed oxide sintering method. Electrical properties of the samples were intensely studied in a wide range of temperature (25 °C–650 °C). Dielectric behaviors were investigated by dielectric and impedance spectroscopies in the range (40 Hz−10 MHz) of frequency. Single dielectric relaxation was observed due to the grains contribution. The phase transition temperature (T C ) was noticed at ∼270 °C. Kinetic analysis of dielectric data was used to understand the possible relaxation-conduction behaviors in the ceramics. Above ∼250 °C, relaxation and conduction of the ceramics was assigned to the motion of ionized oxygen vacancies. The Aurivillius ceramics has promising industrial applications in dielectric capacitors and piezoelectric transducers due to low leakage below ∼200 °C. The results could be valuable for designing and/or modifying properties of BNNF related materials.

AB - Aurivillius single-phase Bi 2.5 Nd 0.5 Nb 1.5 Fe 0.5 O 9 (BNNF) ceramics was synthesized via solid state mixed oxide sintering method. Electrical properties of the samples were intensely studied in a wide range of temperature (25 °C–650 °C). Dielectric behaviors were investigated by dielectric and impedance spectroscopies in the range (40 Hz−10 MHz) of frequency. Single dielectric relaxation was observed due to the grains contribution. The phase transition temperature (T C ) was noticed at ∼270 °C. Kinetic analysis of dielectric data was used to understand the possible relaxation-conduction behaviors in the ceramics. Above ∼250 °C, relaxation and conduction of the ceramics was assigned to the motion of ionized oxygen vacancies. The Aurivillius ceramics has promising industrial applications in dielectric capacitors and piezoelectric transducers due to low leakage below ∼200 °C. The results could be valuable for designing and/or modifying properties of BNNF related materials.

KW - Aurivillius compound

KW - Defects

KW - Dielectric

KW - Electrical properties

KW - Impedance analysis

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SN - 0254-0584

VL - 226

SP - 100

EP - 105

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

ER -

Rehman F, Li JB, Ahmad I, Jin HB, Ahmad P, Saeed Y et al. Dielectric relaxation and electrical properties of Bi _2.5 Nd _0.5 Nb _1.5 Fe _0.5 O ₉ ceramics Materials Chemistry and Physics. 2019 Mar 15;226:100-105. doi: 10.1016/j.matchemphys.2019.01.025

Dielectric relaxation and electrical properties of Bi _2.5 Nd _0.5 Nb _1.5 Fe _0.5 O ₉ ceramics

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