Results 71 to 80 of about 3,055,035 (377)

Designing high piezoelectric properties at the BaTiO3–PbZrO3–PbTiO3 phase boundary by Landau–Devonshire theory

Journal of Advanced Dielectrics
Ferroelectric materials possessing exceptional piezoelectric attributes have garnered widespread utilization in various applications. Solid solution systems improve piezoelectric properties through multiphase mixing, but the methodologies for effective ...
Yu Song, Xiaoming Shi, Dan Li, Jing Wang, Houbing Huang   +4 more
doaj   +1 more source

Bubble Electret-Elastomer Piezoelectric Transducer

Energies, 2020
Ferroelectret-based piezoelectric transducers are, nowadays, commonly used in energy harvesting applications due to their high piezoelectric activity. Unfortunately, the processing properties of such materials are limited, and new solutions are sought ...
Ryszard Kacprzyk, Agnieszka Mirkowska
doaj   +1 more source

Origin of the anomalous piezoelectric response in wurtzite Sc$_x$Al$_{1-x}$N alloys

, 2010
The origin of the anomalous, 400% increase of the piezoelectric coefficient in Sc$_x$Al$_{1-x}$N alloys is revealed. Quantum mechanical calculations show that the effect is intrinsic.
Abrikosov, Igor A., Alling, Björn, Birch, Jens, Hultman, Lars, Höglund, Carina, Tasnádi, Ferenc, Wingqvist, Gunilla   +6 more
core   +1 more source

Evolving morphotropic phase boundary in lead-free (Bi1/2Na1/2)TiO3–BaTiO3 piezoceramics [PDF]

, 2011
The correlation between structure and electrical properties of lead-free (1-x)(Bi(1/2)Na(1/2))TiO(3)-xBaTiO(3) (BNT-100xBT) polycrystalline piezoceramics was investigated systematically by in situ synchrotron diffraction technique, combined with ...
Damjanovic, Dragan, Daniels, John, Jo, Wook, Jones, Jacob, Rödel, Jürgen, Tan, Xiaoli, Tan, Xiaoli, Thomas, Pamela   +7 more
core   +4 more sources

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

Advanced Healthcare Materials, EarlyView.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi, Naseeh Backer Kannanthodi, Alice Nicole Casling, Babar Ali, Samira Lakouraj Mansouri, Alessandro Giuseppe D'aloia, Hossein Cheraghi Bidsorkhi, Maria Sabrina Sarto   +7 more
wiley   +1 more source

Hysteresis and the nonlinear equivalent piezoelectric coefficient of MFCs for actuation

, 2017
The hysteretic behavior and nonlinearity of the equivalent material coefficient of macro fiber composites (MFC) under staircase input conditions are investigated using the Preisach model.
Z. Xue, Lin Li, M. Ichchou, C. Li
semanticscholar   +1 more source

Highly piezoelectric, biodegradable, and flexible amino acid nanofibers for medical applications

Science Advances, 2023
Amino acid crystals are an attractive piezoelectric material as they have an ultrahigh piezoelectric coefficient and have an appealing safety profile for medical implant applications.
Meysam T. Chorsi, Thinh-Tien Le, Feng Lin, Tra Vinikoor, Ritopa Das, James F. Stevens, Caitlyn Mundrane, Jinyoung Park, Khanh T. M. Tran, Yang Liu, J. Pfund, Rachel L. Thompson, Wu He, M. Jain, M. D. Morales-Acosta, O. Bilal, K. Kazerounian, H. Ilies, T. Nguyen   +18 more
semanticscholar   +1 more source

Piezoelectricity of lead-free hybrid perovskite monolayer (ATHP)2XY4 (X = Ge, Sn; Y = Cl, Br, I): Cross-scale calculation and simulation

AIP Advances
Two-dimensional (2D) piezoelectric material is the core part of all kinds of micro-piezoelectric devices (piezoelectric energy harvesters, piezoelectric sensors, etc.).
Jian Qiu, Dongling Li, Quan Wen
doaj   +1 more source

Analysis on Coupled Vibration of a Radially Polarized Piezoelectric Cylindrical Transducer

Sensors, 2017
Coupled vibration of a radially polarized piezoelectric cylindrical transducer is analyzed with the mechanical coupling coefficient method. The method has been utilized to analyze the metal cylindrical transducer and the axially polarized piezoelectric ...
Jie Xu, Shuyu Lin, Yan Ma, Yifan Tang
doaj   +1 more source

Low temperature-semiconductor band gap thermal shifts: T^4 shifts from ordinary acoustic and T^2 from piezoacoustic coupling

, 2017
At low temperature T, the experimental gap of silicon decreases as E_g(T)=E_g(0)-AT^4. The main reason is electron-phonon renormalization. The physics behind the T^4-power law is more complex than has been realized.
Allen, Philip B., Nery, Jean Paul
core   +1 more source