The structural and electric properties of Li- and K-substituted Bi0.5Na0.5TiO3 ferroelectric ceramics

Lü, Wenzhong; Wang, Ying; Fan, Guifen; Wang, Xiaohong; Liang, Fei

doi:10.1016/j.jallcom.2010.10.041

Cited by 32 publications

(24 citation statements)

References 33 publications

(34 reference statements)

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“…Both T d and T c decreases as the frequency increases. For ferroelectric material with perovskite structure the transition temperature from ferroelectric to anti-ferroelectric phase (T d ) depends on the stability of ferroelectric domain [24]. The microscopic heterogeneity in the compound with different local Curie points and the nature of the variation of dielectric constant suggest the ferroelectric phase transition of the material.…”

Section: Methodsmentioning

confidence: 99%

“…Because of the interest in green environment and high toxicity of lead, scientist and researchers are now interested in lead free ferroelectrics and piezoelectric materials. Some such example are (K 0.5-Na 0.5 )NbO 3 (KNN), Na 0.5 Bi 0.5 TiO 3 (NBT), and BaTiO 3 (BT)-based ceramics which have been actively studied [7][8][9][10][11][12]. Besides, NBT and KBT-based MPB ferroelectric compositions with perovskite structure were also extensively investigated, owing to their high Tc (*320 and 380°C; respectively) and strong ferroelectricity.…”

Section: Introductionmentioning

confidence: 99%

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Quantitative structural analysis, phase transition and relaxor nature of Bi0.5Li0.5TiO3 ceramic prepared by mechanical alloying

Nayak

Panigrahi

2016

J Mater Sci: Mater Electron

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Bi 0.5 Li 0.5 TiO 3 (LBT) ceramics was prepared by mechanochemical synthesis and sintered at 600°C. Quantitative structural analysis was carried out and various structural parameters are presented here along with Rietveld refinement data. The dielectric study was carried out and observed that, presence of two dielectric anomalies in all frequencies signifies the phase transformation from ferroelectric to anti-ferroelectric at temp (T d ) 133.32°C and from anti ferroelectric phase to paraelectric phase at temp (T c ). 352.904°C for the first and second curve respectively. Different dielectric parameters and dielectric loss values T d and T c are noted. The values of e m , e r and tan d at temperatures T d , T c and T r (room temperature) at 10 kHz are presented in this study.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quantitative structural analysis, phase transition and relaxor nature of Bi0.5Li0.5TiO3 ceramic prepared by mechanical alloying

Nayak

Panigrahi

2016

J Mater Sci: Mater Electron

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“…1b. 21 The difference between the c/a ratios of conventionally-sintered samples and those of oxygen-annealed samples increases from about 0.0022 to 0.00614 and then declines to about 0.0026. It reaches the maximum value of about 0.00614 at the point x = 0.085.…”

Section: Xrd Characteristicsmentioning

confidence: 97%

Effect of Oxygen Annealing on the Electrical Properties of PBLZST Anti-ferroelectric Ceramics

Xue

Liu

et al. 2015

Journal of Elec Materi

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The effect of oxygen annealing on the electrical properties of (Pb 0.97Àx Ba x La 0.02 )(Zr 0.6 Sn 0.32 Ti 0.08 )O 3 (PBLZST) anti-ferroelectric (AFE) ceramics has been investigated through measuring its phase structure, electric field-induced polarization and dielectric properties. The oxygen annealing process can significantly improve the stability of the AFE phase and decrease the dielectric constant peaks. The saturation polarization of the PBLZST samples annealed in O 2 increases gradually when x < 0.085, but it decreases when x > 0.085. Compared with the conventional sintering method, the hysteresis switch fields of samples annealed in O 2 maintains the consistent stability, and the dielectric constant peaks drop drastically and are simultaneously broadened, except at x = 0.095. The Curie temperature decreases greatly after oxygen annealing when x is smaller than 0.08, but increases slightly when x is greater than 0.08. When x = 0.085, the difference of c/a ratios between the samples processed by the two methods reaches a maximum of about 0.00614, and the increment of the saturation polarization is 7 lC/cm 2 .

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“…Many researchers have attempted to improve BNT-properties by selecting some cation substituted on the A-site of a BNT system [4][5][6][7][8][9][10]. Yang et al [5] studied the effects of K substituted to Na at the A-site of BNT perovskite in a range of 10-20 mol% on crystal structure, microstructure and electrical properties.…”

Section: Introductionmentioning

confidence: 99%

The effect of firing temperatures on phase formation, microstructure and dielectric properties of Bi0.5(Na0.74K0.16Li0.10)0.5TiO3 ceramics synthesized via the combustion route

Julphunthong

Bongkarn

Maensiri

2015

Ceramics International

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The structural and electric properties of Li- and K-substituted Bi0.5Na0.5TiO3 ferroelectric ceramics

Cited by 32 publications

References 33 publications

Quantitative structural analysis, phase transition and relaxor nature of Bi0.5Li0.5TiO3 ceramic prepared by mechanical alloying

Quantitative structural analysis, phase transition and relaxor nature of Bi0.5Li0.5TiO3 ceramic prepared by mechanical alloying

Effect of Oxygen Annealing on the Electrical Properties of PBLZST Anti-ferroelectric Ceramics

The effect of firing temperatures on phase formation, microstructure and dielectric properties of Bi0.5(Na0.74K0.16Li0.10)0.5TiO3 ceramics synthesized via the combustion route

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