Low- Frequency Dielectric Dispersion and Impedance Spectroscopy of Lead-Free Na0.5 Bi0.5 Tio3 (NBT) based Ferroelectric Ceramic

Tilak, B.

doi:10.4172/2169-0022.1000108

Cited by 2 publications

(1 citation statement)

References 23 publications

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“…Codoping of NBT with Ba +2 and Zr +4 have been studied before . Slim electric hysteresis loops were measured, which is known to be a characteristic feature of relaxor‐like ferroelectrics.…”

Section: Introductionsupporting

confidence: 87%

Electrical Properties of Lead‐Free Na_1/2Bi_1/2TiO₃ Relaxor Ferroelectric Ceramics Doped with Hafnium or Zirconium

Kirsever

Yılmaz

2015

J. Am. Ceram. Soc.

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Ferroelectric (Na 1/2 Bi 1/2 )TiO 3 and its various solid solutions have been drawing special attention as a new candidate for their lead-based counterparts. In this study, therefore, hafnium-or zirconium-doped grain-oriented (Na 1/2 Bi 1/2 )TiO 3 ceramics with <001> pc orientation were fabricated by templated grain growth method using anisotropically shaped SrTiO 3 template particles. These molten salt synthesized SrTiO 3 platelets were tape cast with calcined (Na 1/2 Bi 1/2 )TiO 3 powders, and then sintered at 1200°C for 6 h. Texture fractions up to 70% have been obtained. Unipolar strains up to >0.25% were measured. Doped ceramics showed a "relaxorlike" ferroelectric behavior. A broad dielectric peak with a slim hysteresis loop was present for hafnium-or zirconiumdoped samples. Electrostrictive coefficient of hafnium-doped (Na 1/2 Bi 1/2 )TiO 3 ceramics were found to be 0.032 m 4 /C 2 , which is much larger than that of PMN-based electrostrictive materials. Electromechanical properties of hafnium-and zirconium-doped (Na 1/2 Bi 1/2 )TiO 3 ceramics under electric bias were studied as well.E. Suvaci-contributing editor Manuscript No. 35412.

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Section: Introductionsupporting

confidence: 87%

Electrical Properties of Lead‐Free Na_1/2Bi_1/2TiO₃ Relaxor Ferroelectric Ceramics Doped with Hafnium or Zirconium

Kirsever

Yılmaz

2015

J. Am. Ceram. Soc.

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The effects of 4% barium doping on the morphological, strutural and dielectric characteristics of (Na0.5 Bi0.5)[(Ti0.8 Zr0.2)0.9(Nb2/3 Zn1/3)0.1]O3

Bouali,

Bounab,

Menasra

et al. 2023

DJNB

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In this study, perovskite ceramics (Na0.5 Bi0.5)1-xBax[(Ti0.8 Zr0.2)0.9(Nb2/3 Zn1/3)0.1]O3 (NB1- xBxTZNZ) were prepared using the molten salt method. The sintering process was conducted at 1100°C for 4 hours in an air atmosphere. The crystal structure was examined using X-ray powder diffraction, which indicated that the material crystallized in a tetragonal structure with a space groupe P4bm. However, there was also evidence of 6% pyrochlore phase present. The crystallite size was found to decrease with Barium doping, and this decrease was attributed to the pinning effect of grain boundaries resulting from the formation of oxygen vacancies which reduce the AC conductivity values. Scanning electron microscopy was employed to examine the grain morphologies, revealing that the sample exhibited a compact structure. Additionally, the density of (NB1-xBxTZNZ) (x=0.04) was observed to be higher compared to (NB1-xBxTZNZ) (x=0.00). Barium doped into NB1-xBxTZNZ also caused a decrease in dielectric constant and dielectric loss. Raman spectroscopy was performed at room temperature on the doped ceramic with Barium, and we discussed the incorporation of Ba2+ in A-site of the perovskite ABO3.

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Low- Frequency Dielectric Dispersion and Impedance Spectroscopy of Lead-Free Na0.5 Bi0.5 Tio3 (NBT) based Ferroelectric Ceramic

Cited by 2 publications

References 23 publications

Electrical Properties of Lead‐Free Na_1/2Bi_1/2TiO₃ Relaxor Ferroelectric Ceramics Doped with Hafnium or Zirconium

Electrical Properties of Lead‐Free Na_1/2Bi_1/2TiO₃ Relaxor Ferroelectric Ceramics Doped with Hafnium or Zirconium

The effects of 4% barium doping on the morphological, strutural and dielectric characteristics of (Na0.5 Bi0.5)[(Ti0.8 Zr0.2)0.9(Nb2/3 Zn1/3)0.1]O3

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Low- Frequency Dielectric Dispersion and Impedance Spectroscopy of Lead-Free Na0.5 Bi0.5 Tio3 (NBT) based Ferroelectric Ceramic

Cited by 2 publications

References 23 publications

Electrical Properties of Lead‐Free Na1/2Bi1/2TiO3 Relaxor Ferroelectric Ceramics Doped with Hafnium or Zirconium

Electrical Properties of Lead‐Free Na1/2Bi1/2TiO3 Relaxor Ferroelectric Ceramics Doped with Hafnium or Zirconium

The effects of 4% barium doping on the morphological, strutural and dielectric characteristics of (Na0.5 Bi0.5)[(Ti0.8 Zr0.2)0.9(Nb2/3 Zn1/3)0.1]O3

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Electrical Properties of Lead‐Free Na_1/2Bi_1/2TiO₃ Relaxor Ferroelectric Ceramics Doped with Hafnium or Zirconium

Electrical Properties of Lead‐Free Na_1/2Bi_1/2TiO₃ Relaxor Ferroelectric Ceramics Doped with Hafnium or Zirconium