Results 11 to 20 of about 684 (175)

Boosting Photo-Pyroelectric Effect via Tunable Polarization and Interfacial Defect Engineering. [PDF]

Adv Sci (Weinh)
This study reports Ba(Ti0.85Zr0.15)O3 nanocatalysts with enhanced polarization and oxygen‐vacancy‐rich interfaces for efficient NIR‐II photo‐pyroelectric therapy. Zr doping boosts the pyroelectric coefficient and accelerates polarization switching, while oxygen vacancies improve photothermal conversion and surface reactivity.
Huang Y, Luo H, Yin J, Cao S, Dong G, Tan Z, Zhao C, Wen P, Sun F, Zhang S, Zhang X, Dai Y, Yang Z, Huang W.   +13 more
europepmc   +2 more sources

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

Journal of the American Chemical Society
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
Hangfeng Zhang, Marcin Krynski, A. Dominic Fortes, Theo Graves Saunders, Matteo Palma, Yang Hao, Franciszek Krok, Haixue Yan, Isaac Abrahams   +8 more
openaire   +4 more sources

Studies of Structural, Dielectric, and Impedance Spectroscopy of KBT-Modified Sodium Bismuth Titanate Lead-Free Ceramics [PDF]

ACS Omega, 2022
Mohammed Mesrar, Abdelhalim Elbasset, Nor-Said Echatoui, Farid Abdi, Taj-dine Lamcharfi   +4 more
doaj   +2 more sources

Ultra-high energy storage in relaxor ferroelectric MLCCs at elevated temperatures via entropy modulated strain heterogeneity [PDF]

Nature Communications
Multilayer ceramic capacitors are pivotal components in pulse power systems due to their ultra-high power density. However, given the demanding service conditions in aerospace and oil drilling applications, the need to enhance high-temperature energy ...
Ruirui Kang, Yang Li, Tengfei Hu, Zepeng Wang, Yangfei Gao, Junbo Xu, Mei Bai, Zhengqian Fu, Lixue Zhang, Jiantuo Zhao, Danyang Wang, Jinyou Shao, Fei Li, Shujun Zhang, Xiaojie Lou   +14 more
doaj   +2 more sources

Photo-sono activated BNT@MoS2 composites for rapid eradication of breast cancer [PDF]

Heliyon
Non-invasive external energy triggered efficient tumor therapy is a promising specific treatment strategy. Herein, a composite material of bismuth sodium titanate (BNT) and molybdenum disulfide (MoS2) with piezoelectric effect was designed for the ...
Rong Li, Hao Liu, Xiudong Guo, Xin yang, Hailiang Zhang, Jianbo Song, Guannan Zhang   +6 more
doaj   +2 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

Processing and properties of translucent bismuth sodium titanate ceramics

Journal of the European Ceramic Society, 2021
Lead-free bismuth sodium titanate piezoceramics were processed by a solid-state route with a novel precursor approach. By carefully controlling the processing parameters and sintering atmospheres, translucent ceramics with pore-free, homogeneous microstructures with exceptionally low dielectric loss at elevated temperatures.
Seifert, D.U., Li, L., Lee, K.-Y., Hoffmann, M.J., Sinclair, D.C., Hinterstein, M.   +5 more
openaire   +4 more sources

Investigation of Ga Doping for Non-stoichiometric Sodium Bismuth Titanate Ceramics [PDF]

Journal of Materials Science: Materials in Electronics, 2021
Abstract The electrical performance of Ga3+ doping Na0.5Bi0.5TiO3-based oxygen ion conductor was studied. The Na0.52Bi0.47Ti1−xGaxO3−δ (x = 0, 0.01, 0.015, 0.02) samples were fabricated by the means of traditional solid-state reaction. The results of AC impedance measurement show that the bulk conductivity of Na0.52Bi0.47Ti1−xGaxO3−δ samples ...
M. Y. Li, C. He, W. G. Wang, G. L. Hao, X. Y. Li, T. Liu, X. F. Wang, D. Wang   +7 more
openaire   +2 more sources

Structure and dielectric properties of bismuth sodium titanate ceramic prepared by auto-combustion technique [PDF]

Processing and Application of Ceramics, 2013
(Bi0.5 Na0.5 )TiO3 ceramic was prepared by dry auto-combustion method using urea as a fuel. It was shown that the phase composition of the synthesized powder depends on the amount of urea.
Tanmaya Badapanda, Senthil Venkatesan, Simanchalo Panigrahi, Pawan Kumar   +3 more
doaj   +1 more source