Results 21 to 30 of about 17,613 (186)

Advances in research on high-Curie temperature BiFeO3-based ceramics

open access: yes工程科学学报, 2019
Piezoelectric materials are functional materials that can realize electromechanical coupling characteristics and are widely used in electronic information, sensors, ultrasonic transducer, nondestructive testing, and communication technology. However, the
ZHU Li-feng, ZHANG Bo-ping
doaj   +1 more source

Single-Beam Acoustic Tweezer Prepared by Lead-Free KNN-Based Textured Ceramics

open access: yesMicromachines, 2022
Acoustic tweezers for microparticle non-contact manipulation have attracted attention in the biomedical engineering field. The key components of acoustic tweezers are piezoelectric materials, which convert electrical energy to mechanical energy. The most
Yi Quan   +17 more
doaj   +1 more source

Preparation Process, Structure, and Modification of Alkali Metal Niobate Lead-Free Piezoelectric Ceramics [PDF]

open access: yesArchives of Metallurgy and Materials
Pb-based piezoelectric ceramics cause serious Pb pollution during manufacturing, Pb-free niobate-based piezoelectric ceramics have strong ferroelectricity and high Curie temperatures, rendering them more suitable for making ceramics.
Ruikun Niu, Yanni Meng, Haiqiao Wang
doaj   +1 more source

Phase and domain engineering strategy for enhancement of piezoelectricity in the lead-free BiFeO3-BaTiO3 ceramics

open access: yesJournal of Materiomics, 2023
Lead-free BiFeO3-BaTiO3 ceramics attract widespread attention over the last two decades due to their high Curie temperature (TC) and excellent piezoelectric performance.
Muhammad Habib   +6 more
doaj   +1 more source

Humidity resistance and recovery of sintered sodium potassium niobate-based piezoelectrics

open access: yesOpen Ceramics, 2023
This study delves into the crucial impact of humidity on the microstructure, phase composition, dielectric, ferroelectric, and piezoelectric properties of sintered 0.06LiNbO3–0.94(K0.5Na0.5)NbO3 lead-free piezoelectric ceramics during storage.
Gianni Ferrero   +5 more
doaj   +1 more source

Polymorphic phase boundary in piezoelectric oxides [PDF]

open access: yes, 2020
The design of phase boundaries has now become a consolidated strategy to improve the functional properties of piezoelectric oxides because of the unique properties that may be obtained in their vicinity. In particular, polymorphic phase boundaries (PPBs)
García García, José Eduardo   +1 more
core   +1 more source

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

open access: yes, 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   +5 more
core   +3 more sources

Doping modification in lead-free piezoelectric ceramics

open access: yesHighlights in Science, Engineering and Technology, 2023
Piezoelectric ceramics are functional information ceramic materials that can convert mechanical and electrical energy into each other. They are widely used in high-tech fields, such as the electronics industry, machinery, and aerospace. Currently, Pb(ZrTi)O3 (PZT) piezoelectric materials are most commonly used, but the main component, PbO, is toxic and
Qianyi Pang, Lanruo Han, Xiang Yu
openaire   +1 more source

Molten hydroxide synthesis as an alternative to molten salt sythesis for producing K0.5Na0.5NbO3 lead free ceramics [PDF]

open access: yes, 2011
Lead-free piezoelectric materials have grown in importance through increased environmental concern and subsequent EU and worldwide legislation, with the aspiration to reduce the use of Pb-based materials in all sectors. Integration of the next generation
Bortolani, Francesca   +3 more
core   +1 more source

Impact of Phase Structure on Piezoelectric Properties of Textured Lead-Free Ceramics

open access: yesCrystals, 2020
The impact of phase structure on piezoelectric performances of textured Na0.5Bi0.5TiO3 (NBT) based lead-free ceramics was studied, including 0.88NBT-0.08K0.5Bi0.5TiO3-0.04BaTiO3 (88NBT) with morphotropic phase boundary (MPB) composition and 0.90NBT-0 ...
Xiaoyi Gao   +6 more
doaj   +1 more source

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