Results 21 to 30 of about 1,193,018 (238)

Theoretical Model Construction of Piezoelectric Coefficient of PbTiO₃ Nanoparticles

Chemical Engineering Transactions, 2017
This paper aims to explain the size dependence of piezoelectric coefficient d33(D) of PbTiO3 nanoparticles. For this purpose, a theoretical model was created for the size-dependent piezoelectric coefficient, considering the Curie temperature for small ...
Shuai Zhang, Lei Chen
doaj   +1 more source

Composites, Fabrication and Application of Polyvinylidene Fluoride for Flexible Electromechanical Devices: A Review

Micromachines, 2020
The technological development of piezoelectric materials is crucial for developing wearable and flexible electromechanical devices. There are many inorganic materials with piezoelectric effects, such as piezoelectric ceramics, aluminum nitride and zinc ...
Shuaibing Guo, Xuexin Duan, Mengying Xie, Kean Chin Aw, Qiannan Xue   +4 more
doaj   +1 more source

The effect and mechanism for doping concentration of Mg-Hf on the piezoelectric properties for AlN

Materials Research Express, 2023
The piezoelectric coefficient of intrinsic AlN is not meeting the demand from some high-performance applications in MEMS compared with the commercialized piezoelectric ceramics.
Qiaoya Lv, Jian Qiu, Haomiao Zhang, Quan Wen, Jiabing Yu   +4 more
doaj   +1 more source

Research on Effective Electric-Mechanical Coupling Coefficient of Sandwich Type Piezoelectric Ultrasonic Transducer Using Bending Vibration Mode

Advances in Mechanical Engineering, 2015
An analytical model on electromechanical coupling coefficient and the length optimization of a bending piezoelectric ultrasonic transducer are proposed. The piezoelectric transducer consists of 8 PZT elements sandwiched between four thin electrodes, and ...
Qiang Zhang, Shengjun Shi, Weishan Chen
doaj   +1 more source

Enhanced torsional actuation and stress coupling in Mn-modified 0.93(Na0.5Bi0.5TiO3)-0.07BaTiO3 lead-free piezoceramic system

Science and Technology of Advanced Materials, 2017
This paper is concerned with the development of a piezoelectric d15 shear-induced torsion actuator made of a lead-free piezoceramic material exhibiting giant piezoelectric shear stress coefficient (e15) and piezoelectric transverse shear actuation force ...
Pelin Berik, Deepam Maurya, Prashant Kumar, Min Gyu Kang, Shashank Priya   +4 more
doaj   +1 more source

Optimizing Piezoelectric Nanocomposites by High‐Throughput Phase‐Field Simulation and Machine Learning

Advanced Science, 2022
Piezoelectric nanocomposites with oxide fillers in a polymer matrix combine the merit of high piezoelectric response of the oxides and flexibility as well as biocompatibility of the polymers.
Weixiong Li, Tiannan Yang, Changshu Liu, Yuhui Huang, Chunxu Chen, Hong Pan, Guangzhong Xie, Huiling Tai, Yadong Jiang, Yongjun Wu, Zhao Kang, Long‐Qing Chen, Yuanjie Su, Zijian Hong   +13 more
doaj   +1 more source

An Overview on Piezoelectric Cellular Polymers: Properties and Preparation [PDF]

علوم و تکنولوژی پلیمر, 2020
Piezoelectricity can be described as a capability of some particular materials which convert mechanical energy to electrical and vice versa. In addition to ceramics (such as PZT) and polar polymers (PVDF and its copolymers), non-polar cellular polymers ...
Sorena Azidhak, Ali Akber Yousefi, Ahmad Reza Taghizadeh, Ali Akbar Zarei   +3 more
doaj   +1 more source

Parameter Identification of the Nonlinear Piezoelectric Shear d₁₅ Coefficient of a Smart Composite Actuator

Actuators, 2021
The objective of this work is to characterize the nonlinear dependence of the piezoelectric d15 shear coefficient of a composite actuator on the static electric field and include this effect in finite element (FE) simulations.
Pelin Berik, Peter L. Bishay
doaj   +1 more source

A Thick-film Piezoelectric Multimorph Cantilever [PDF]

, 2009
Free-standing thick-film cantilevers have the potential to be used as micro-generators as well as self-generating resonant sensors. Earlier versions of free-standing devices were implemented by fabricating in the form of multilayer structures. Instead of
Kok, Swee Leong, Harris, Nick, White, Neil   +2 more
core  

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source