Defect chemistry and electrical properties of sodium bismuth titanate perovskite

F Yang, M Li, L Li, P Wu, E Pradal-Velázquez… - Journal of Materials …, 2018 - pubs.rsc.org
The ferroelectric perovskite Na0. 5Bi0. 5TiO3, NBT, can exhibit three types of electrical
behaviour, ie oxide-ion conduction (type I), mixed ionic–electronic conduction (type II) and …

Electric field-induced transformations in bismuth sodium titanate-based materials

G Viola, Y Tian, C Yu, Y Tan, V Koval, X Wei… - Progress in Materials …, 2021 - Elsevier
Electric field-induced transformations occur in a myriad of systems with a variegated
phenomenology and have attracted widespread scientific interest due to their importance in …

Giant electric-field-induced strains in lead-free ceramics for actuator applications–status and perspective

W Jo, R Dittmer, M Acosta, J Zang, C Groh… - Journal of …, 2012 - Springer
In response to the current environmental regulations against the use of lead in daily
electronic devices, a number of investigations have been performed worldwide in search for …

Enhanced breakdown strength and energy storage density of lead-free Bi0. 5Na0. 5TiO3-based ceramic by reducing the oxygen vacancy concentration

Z Jiang, H Yang, L Cao, Z Yang, Y Yuan, E Li - Chemical Engineering …, 2021 - Elsevier
Abstract Lead-free 0.9 (Na 0.4 Bi 0.4 Ba 0.06 Sr 0.14 Ti (1− x) Ta x O 3)-0.1 NaNbO 3
ceramics with x= 0~ 0.05 were synthesized via solid-state reaction method. Raman spectra …

Enhanced energy storage properties of NaNbO3 modified Bi0. 5Na0. 5TiO3 based ceramics

Q Xu, T Li, H Hao, S Zhang, Z Wang, M Cao… - Journal of the European …, 2015 - Elsevier
Abstract (1− x) BNTBT-xNN ceramics were prepared by conventional solid state reaction
method. X-ray fluorescence analysis shows that the volatilization of Na element occurs …

Dramatic Influence of A-Site Nonstoichiometry on the Electrical Conductivity and Conduction Mechanisms in the Perovskite Oxide Na0.5Bi0.5TiO3

M Li, H Zhang, SN Cook, L Li, JA Kilner… - Chemistry of …, 2015 - ACS Publications
Recently, there has been considerable interest in the perovskite phase Na0. 5Bi0. 5TiO3
(NBT) as a promising lead-free piezoelectric material. Here we report low levels of Na …

Determination of depolarization temperature of (Bi1/2Na1/2) TiO3-based lead-free piezoceramics

EM Anton, W Jo, D Damjanovic, J Rödel - Journal of Applied Physics, 2011 - pubs.aip.org
The depolarization temperature T d of piezoelectric materials is an important figure of merit
for their application at elevated temperatures. Until now, there are several methods …

Grain size modulated (Na0. 5Bi0. 5) 0.65 Sr0. 35TiO3-based ceramics with enhanced energy storage properties

Y Gao, X Zhu, B Yang, P Shi, R Kang, Y Yuan… - Chemical Engineering …, 2022 - Elsevier
Ferroelectric ceramics, as a potential candidate for high-power energy storage capacitors,
lies in their excellent recoverable energy storage density (W rec) and outstanding efficiency …

Lead-free piezoelectric system (NaBi)TiO-BaTiO: Equilibrium structures and irreversible structural transformations driven by electric field and mechanical …

R Garg, BN Rao, A Senyshyn, PSR Krishna… - Physical Review B …, 2013 - APS
The structure-property correlation in the lead-free piezoelectric (1− x)(Na 0.5 Bi 0.5) TiO 3-(x)
BaTiO 3 has been systematically investigated in detail as a function of composition (0< x≤ …

Synthesis mechanisms and effects of BaTiO3 doping on the optical properties of Bi0. 5Na0. 5TiO3 lead-free ceramics

S Supriya - Journal of Solid State Chemistry, 2022 - Elsevier
Abstract Research in (1-x) Bi 0.5 Na 0.5 TiO 3-xBaTiO 3,(x​=​ 0.01 to 0.09),(known as BNT-
BT) perovskite materials ranges from fundamental scientific analysis like crystal structure …