Results 11 to 20 of about 3,555 (213)

Lead-free piezoelectric materials and ultrasonic transducers for medical imaging [PDF]

Journal of Advanced Dielectrics, 2015
Piezoelectric materials have been vastly used in ultrasonic transducers for medical imaging. In this paper, firstly, the most promising lead-free compositions with perovskite structure for medical imaging applications have been reviewed.
Elaheh Taghaddos, Mehdi Hejazi, Ahmad Safari   +2 more
doaj   +1 more source

Impact of process conditions on chemical solution deposited BNKT thin film electromechanical properties

SN Applied Sciences, 2021
Phase pure perovskite (1-x)Bi1/2Na1/2TiO3 – xBi1/2K1/2TiO3 (BNKT) thin films were successfully prepared via an inverse mixing order chemical solution deposition method and the impact of process conditions on film properties were observed.
Kyle M. Grove, Austin Fox, David P. Cann, Song Won Ko, Peter Mardilovich, Brady J. Gibbons   +5 more
doaj   +1 more source

B-site substituted solid solutions on the base of sodium-bismuth titanate [PDF]

Journal of Advanced Dielectrics, 2016
The paper presents results of studies of the formation of phases during the solid-state synthesis in the [(Na0.5Bi0.5)0.80Ba0.20](Ti1–yBy)O3 system of solid solutions with B-site substitutions.
V. M. Ishchuk, L. G. Gusakova, N. G. Kisel, D. V. Kuzenko, N. A. Spiridonov, V. L. Sobolev   +5 more
doaj   +1 more source

Origin of Polarization in Bismuth Sodium Titanate-Based Ceramics. [PDF]

J Am Chem Soc
The classical view of the structural changes that occur at the ferroelectric transition in perovskite-structured systems, such as BaTiO3, is that polarization occurs due to the off-center displacement of the B-site cations. Here, we show that in the bismuth sodium titanate (BNT)-based composition 0.2(Ba0.4Sr0.6TiO3)-0.8(Bi0.5Na0.5TiO3), this model does
Zhang H, Krynski M, Fortes AD, Saunders TG, Palma M, Hao Y, Krok F, Yan H, Abrahams I.   +8 more
europepmc   +4 more sources

Lead‐free versus PZT: Acoustic characterization of ultrasonic immersion transducers fabricated with lead‐free NBT‐BT piezoceramic

The Journal of Engineering, 2023
An evaluation of the performance of a recently developed formulation of (lead‐free) Sodium‐Bismuth titanate – Barium Titanate (NBT‐BT) piezoceramic is presented through the construction and testing of several immersion transducers based around a new ...
Thomas R. P. Kelley
doaj   +1 more source

Orientation dependence on piezoresponse of lead-free piezoelectric sodium bismuth titanate epitaxial thin films

Journal of Advanced Dielectrics, 2023
Lead-free piezoelectric sodium bismuth titanate (([Formula: see text][Formula: see text])TiO3, BNT) thin films were epitaxially grown onto (001)-, (110)-, and (111)-oriented Nb:SrTiO3 (STO) single crystal substrates prepared by sol–gel processing. Highly
Jinyan Zhao, Wei Ren, Zhe Wang, Gang Niu, Lingyan Wang, Yulong Zhao   +5 more
doaj   +1 more source

Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3 piezoceramics at the morphotropic phase boundary region [PDF]

, 2016
A systematic study of the functional properties of the (1-x)(Bi0.5Na0.5)TiO3–xBaTiO3 (BNT-xBT) piezoceramic system for 0.05 = x = 0.07 is performed. The samples are obtained through the conventional solid-state route.
Cerdeiras Montero, Elena, dos Santos, Valdeci B., García García, José Eduardo, Machado, Rodrigo, Mestres, Lourdes, Ochoa Guerrero, Diego A.   +5 more
core   +3 more sources

Phase evolution in (1−x)(Na0.5Bi0.5)TiO3-xSrTiO3 solid solutions: A study focusing on dielectric and ferroelectric characteristics

Journal of Materiomics, 2020
In the present work, the nature of phase evolution of (1−x)(Na0.5Bi0.5)TiO3-xSrTiO3 (NBT-xST) solid solutions with x of 0–0.6 is revealed by characterizing the dielectric and ferroelectric properties.
Gang Liu, Jia Dong, Leiyang Zhang, Yan Yan, Ruiyi Jing, Li Jin   +5 more
doaj   +1 more source

Impact of Thermal Treatment on the Surface of Na_0.5Bi_0.5TiO₃-Based Ceramics

Crystals, 2021
Thermal etching is a widely accepted surface treatment method for studying microstructure in Na0.5Bi0.5TiO3-based compositions. Surprisingly, besides the flat pattern of grains (suitable for evaluating ceramics’ microstructure), images illustrating well ...
Liga Bikse, Marija Dunce, Eriks Birks, Karlis Kundzins, Otto Freimanis, Maris Livins, Jevgenijs Gabrusenoks, Andris Sternberg   +7 more
doaj   +1 more source

High efficient catalytic degradation of tetracycline and ibuprofen using visible light driven novel Cu/Bi2Ti2O7/rGO nanocomposite::Kinetics, intermediates and mechanism [PDF]

, 2019
The photoexcited charge carriers trapping was an effective way to generate a large number of active species like O-2(center dot-) and (OH)-O-center dot radicals to oxidize pharmaceutical molecules.
Acevedo, R., Anbarasan, P.M., Gkanas, Evangelos, Priyadharsan, A., Shanavas, S.   +4 more
core   +1 more source