Preparation and Properties of Lead Free Bismuth Sodium Titanate−Bismuth Zinc Titanate Ceramics

Muanghlua, Rangson; Niemcharoen, Surasak; Vittayakorn, Naratip; Tungsitvisetkul, Nattapong; Chinwaro, Pimjan; Ruangphanit, Anucha; Chaiyo, Nopsiri

doi:10.1080/00150190902873303

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…This work will focus on the dielectric and ferroelectric properties of the solid solution between BNT and Bi(Zn 1/2 Ti 1/2 )O 3 (BZT). The end member BZT is not a stable perovskite at room temperature and 1 atm pressure, but previous work has shown that it can form solid solutions with stable perovskite end members such as BT, BKT, and PbTiO 3 . These BZT‐based solid solutions have shown excellent properties.…”

Section: Introductionmentioning

confidence: 99%

“…The end member BZT is not a stable perovskite at room temperature and 1 atm pressure, but previous work has shown that it can form solid solutions with stable perovskite end members such as BT, BKT, and PbTiO 3 . [38][39][40][41][42][43][44] These BZT-based solid solutions have shown excellent properties. High permittivities (e r > 1000), large field induced strains with d 33 * values as high as 500 pm/V, and excellent high temperature properties were observed.…”

Section: Introductionmentioning

confidence: 99%

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Relaxor to Ferroelectric Transitions in (Bi_1/2Na_1/2)TiO₃–Bi(Zn_1/2Ti_1/2)O₃Solid Solutions

Patterson

Cann

2012

J. Am. Ceram. Soc.

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The local dynamics of the lead-free relaxor 0.964Na 1/2 Bi 1/2 TiO 3 − 0.036BaTiO 3 (NBT-3.6BT) have been investigated by a combination of quasielastic neutron scattering (QENS) and ab initio molecular dynamics simulations. In a previous paper, we were able to show that the tetragonal platelets in the microstructure are crucial for understanding the dielectric properties of NBT-3.6BT [F. Pforr et al., Phys. Rev. B 94, 014105 (2016)]. To investigate their dynamics, ab initio molecular dynamics simulations were carried out using Na 1/2 Bi 1/2 TiO 3 with 001 cation order as a simple model system for the tetragonal platelets in NBT-3.6BT. Similarly, 111-ordered Na 1/2 Bi 1/2 TiO 3 was used as a model for the rhombohedral matrix. The measured single crystal QENS spectra could be reproduced by a linear combination of calculated spectra. We find that the relaxational dynamics of NBT-3.6BT are concentrated in the tetragonal platelets. Chaotic stages, during which the local tilt order changes incessantly on the timescale of several picoseconds, cause the most significant contribution to the quasielastic intensity. They can be regarded as an excited state of tetragonal platelets, whose relaxation back into a quasistable state might explain the frequency dependence of the dielectric properties of NBT-3.6BT in the 100 GHz to THz range. This substantiates the assumption that the relaxor properties of NBT-3.6BT originate from the tetragonal platelets.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Relaxor to Ferroelectric Transitions in (Bi_1/2Na_1/2)TiO₃–Bi(Zn_1/2Ti_1/2)O₃Solid Solutions

Patterson

Cann

2012

J. Am. Ceram. Soc.

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Studies of structural and electrical characteristics of multi-substituted Bi0.5Na0.5TiO3 ferroelectric ceramics

Arya

Choudhary

2021

J Mater Sci: Mater Electron

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In this communication, preliminary structural and detailed electrical characteristics of the CaSnO3/CaSeO3 modified Bi0.5Na0.5TiO3 ceramics of a general chemical composition (1-2x) [Bi0.5Na0.5TiO3] + x (CaSnO3) + x (CaSeO3) with x= 0, 0.05, 0.10, 0.15, prepared by hightemperature solid-state reaction method with calcination and sintering temperature 925 o C and 950 o C respectively for 5 h, have been reported. Structural and electrical characteristics of the parent compound have significantly been tailored by the addition of the equal percentage of CaSnO3, CaSeO3 over a wide range of temperature (25 o C -400 o C) as well as frequency (1 kHz-1MHz). Analysis of room temperature X-ray diffraction (XRD) data confirmed the development of single-phase compound (with rhombohedral symmetry) with very small amount of impurity phase with higher concentrations (x). In the dielectric spectroscopy, two dielectric peaks are observed at around temperatures 210 o C and 320 o C indicating multiple phase transitions of different types including the ferroelectric to para-electric through anti-ferroelectric. Impedance analysis of data exhibits both negative/positive temperature coefficient of temperature (i.e., semiconductor behavior) of the materials. The Nyquist plots determine the grain and grain boundary effect in capacitive and resistive properties of the materials, and also the non-Debye type of relaxation. The room temperature hysteresis loop confirms the existence of ferroelectricity in the materials. The leakage current characteristics also determine the Ohmic behavior of the materials.

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Microstructure, electrical and optical properties of NBT–xBZT lead-free single crystals

Xiao

Wang

Liu

et al. 2021

Journal of Alloys and Compounds

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Preparation and Properties of Lead Free Bismuth Sodium Titanate−Bismuth Zinc Titanate Ceramics

Cited by 5 publications

References 6 publications

Relaxor to Ferroelectric Transitions in (Bi_1/2Na_1/2)TiO₃–Bi(Zn_1/2Ti_1/2)O₃Solid Solutions

Relaxor to Ferroelectric Transitions in (Bi_1/2Na_1/2)TiO₃–Bi(Zn_1/2Ti_1/2)O₃Solid Solutions

Studies of structural and electrical characteristics of multi-substituted Bi0.5Na0.5TiO3 ferroelectric ceramics

Microstructure, electrical and optical properties of NBT–xBZT lead-free single crystals

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Preparation and Properties of Lead Free Bismuth Sodium Titanate−Bismuth Zinc Titanate Ceramics

Cited by 5 publications

References 6 publications

Relaxor to Ferroelectric Transitions in (Bi1/2Na1/2)TiO3–Bi(Zn1/2Ti1/2)O3Solid Solutions

Relaxor to Ferroelectric Transitions in (Bi1/2Na1/2)TiO3–Bi(Zn1/2Ti1/2)O3Solid Solutions

Studies of structural and electrical characteristics of multi-substituted Bi0.5Na0.5TiO3 ferroelectric ceramics

Microstructure, electrical and optical properties of NBT–xBZT lead-free single crystals

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Relaxor to Ferroelectric Transitions in (Bi_1/2Na_1/2)TiO₃–Bi(Zn_1/2Ti_1/2)O₃Solid Solutions

Relaxor to Ferroelectric Transitions in (Bi_1/2Na_1/2)TiO₃–Bi(Zn_1/2Ti_1/2)O₃Solid Solutions