Results 71 to 80 of about 729 (174)

Dielectric properties of new Bi-based BNT–BKT–BiFeO3 lead-free piezoelectric ceramics

open access: yes工程科学与技术, 2009
:A new Bi-based (Bi0.5Na0.5)TiO3-based lead-free piezoelectric ceramics with perovskite structure, (1-x-y)BNT–xBKT– yBiFeO3, was prepared by a conventional ceramic sintering technique.
Zhou Chang-Rong, 刘心宇, 杨桂华
doaj  

Ultrahigh energy density and improved discharged efficiency in bismuth sodium titanate based relaxor ferroelectrics with A-site vacancy

open access: yesJournal of Materiomics, 2018
Novel A-site deficient (1-x-y)Bi0.5Na0.5TiO3-xBaTiO3-yBi0.2Sr0.7TiO3 lead-free relaxor ferroelectrics have been explored for energy storage property. Particularly slim polarization hysteresis (P-E) loops are observed in 0.655Bi0.5Na0.5TiO3-0.065BaTiO3-0 ...
Xiao Liu   +6 more
doaj   +1 more source

Ultra-large strain response in BNT-BT-KNN thin films boosted by electric field-induced inversion of long-range ordered polarization

open access: yesJournal of Materiomics
Bismuth sodium titanate (BNT)-based piezoelectric materials are the most promising candidates for lead-free actuator applications. With the request for integration and size miniaturization of devices, it is urgent to develop thin films for microdevices ...
Jinyan Zhao   +14 more
doaj   +1 more source

An elementary survey on structural, electrical, and optical properties of perovskite materials

open access: yesEngineering and Applied Science Research, 2022
The paper is aimed to study the recent progress on lead-free piezoelectric materials, focusing on synthesis and various properties such as structural, electrical and optical of them.
Bijayalaxmi Kuanar   +4 more
doaj  

Efficient piezocatalytic properties of Na0.5Bi0.5TiO3 nanoparticles for dye degradation and hydrogen peroxide production

open access: yesJournal of Advanced Dielectrics
Piezocatalysis has emerged as a promising environmental remediation technique, and the exploration of environmentally friendly and high-performance piezocatalysts is crucial for their practical applications.
Bocheng Liang   +4 more
doaj   +1 more source

Photovoltaic effect in bismuth sodium titanate-based ferroelectrics

open access: yes, 2015
This project is aimed at the investigation of photovoltac(PV) effect of environmentally friendly ferroelectric materials, in particular bismuth based compositions. In view of safety and environmental protection, lead-free ferroelectric materials are more promising for a wide range of applications in the near future.
openaire   +2 more sources

Modulation of phase boundary and domain structures to engineer strain properties in BNT-based ferroelectrics

open access: yesJournal of Advanced Ceramics
Bismuth sodium titanate (BNT) ceramics exhibit outstanding strain responses but are unfavorable for application in high-sensitivity displacement actuators due to the large negative strain resulting from irreversible changes in their phase transition and ...
Yule Yang   +9 more
doaj   +1 more source

A review: (Bi,Na)TiO3 (BNT)-based energy storage ceramics

open access: yesJournal of Materiomics
Facing the increasingly serious energy and environmental problems, the research and development of new energy storage technology and environment-friendly energy storage materials are imminent.
Wen Zhu   +8 more
doaj   +1 more source

Photo-dielectric effect of NaBiBaTiO lead-free ceramics sintered in nitrogen and oxygen atmospheres

open access: yesJournal of Advanced Dielectrics
The lead-free ceramics Na[Formula: see text]Bi[Formula: see text]Ba[Formula: see text]TiO[Formula: see text] (BNBT) were prepared via a solid-state sintering method, which was sintered in nitrogen (N2) and oxygen (O2) atmospheres, respectively. The photo-
Tian-Feng Xu   +4 more
doaj   +1 more source

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

open access: yesACS Omega, 2022
Mohammed Mesrar   +4 more
doaj   +1 more source

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