Results 21 to 30 of about 276,639 (273)

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

Ultrahigh Piezoelectric Performance through Synergistic Compositional and Microstructural Engineering

open access: yesAdvanced Science, 2022
Piezoelectric materials enable the conversion of mechanical energy into electrical energy and vice‐versa. Ultrahigh piezoelectricity has been only observed in single crystals. Realization of piezoelectric ceramics with longitudinal piezoelectric constant
Yongke Yan   +9 more
doaj   +1 more source

Review on high temperature piezoelectric ceramics and actuators based on BiScO3–PbTiO3 solid solutions [PDF]

open access: yesJournal of Advanced Dielectrics, 2014
In recent years, industries in the fields of petrochemical, automotive, and aerospace have expressed their interest in utilizing piezoelectric actuators for high-temperature (HT) operations at the temperature above 150°C.
Jianguo Chen   +2 more
doaj   +1 more source

Tetragonal (Ba, Ca) (Zr, Ti)O3 textured ceramics with enhanced piezoelectric response and superior temperature stability

open access: yesJournal of Materiomics, 2022
Lead-free ceramics with both high piezoelectric response and good temperature stability are urgently demanded for electromechanical conversion devices.
Qiangwei Kou   +8 more
doaj   +1 more source

Fabrication and characterization of free-standing thick-film piezoelectric cantilevers for energy harvesting [PDF]

open access: yes, 2009
Research into energy harvesting from ambient vibration sources has attracted great interest over the last few years, largely as a result of advances in the areas of wireless technology and low power electronics.
Kok, Swee Leong   +2 more
core   +1 more source

Review of Piezoelectric Properties and Power Output of PVDF and Copolymer-Based Piezoelectric Nanogenerators

open access: yesNanomaterials, 2023
The highest energy conversion efficiencies are typically shown by lead-containing piezoelectric materials, but the harmful environmental impacts of lead and its toxicity limit future use.
Neelesh Bhadwal   +2 more
doaj   +1 more source

Relaxation-Related Piezoelectric and Dielectric Behavior of Bi(Mg,Ti)O3–PbTiO3 Ceramic

open access: yesSensors, 2019
Piezoelectric and dielectric materials have attracted much attention for their functional device applications. Despite its excellent piezoelectric properties, the content of lead in piezoelectric materials should be restricted to prevent future ...
Min Young Park   +2 more
doaj   +1 more source

Temperature-insensitive KNN-based ceramics by elevating O-T phase transition temperature and crystal texture

open access: yesJournal of Materiomics, 2023
The inferior temperature stability of piezoelectric response is the main drawback of KNN-based ceramics. Here, the Ba-doped 0.97(K0.48Na0.52)(Nb0.96Sb0.04)O3-0.03Bax(Bi0.5Ag0.5)1-xZrO3 (abbreviated as KNNS-BxBAZ) textured ceramics were prepared by the ...
Shuo Gao   +8 more
doaj   +1 more source

Coupled piezoelectric-circuit FEA to study influence of a resistive load on power output of piezoelectric energy devices [PDF]

open access: yes, 2009
This paper presents, for the first time, a coupled piezoelectric-circuit finite element model (CPC-FEM) to analyze the power output of vibration-based piezoelectric energy harvesting devices (EHDs) when connected to a resistive load.
Zhu, Meiling   +5 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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