Results 61 to 70 of about 147,946 (200)
Next MaterialsCeramic piezoelectric films play a crucial role in sensors, acoustic wave devices, and micro-electromechanical systems (MEMS) due to their superior piezoelectric properties. This study focuses on optimizing ZnO piezoelectric films through radio frequency
Zhonghao Liu +8 more
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Effect of Temperature and Pressure Variations on the Resonant Frequency of Piezoelectric Material
Measurement + Control, 2016 Ultrasound transducers are used in a multitude of applications. A typical ultrasound transducer assembly consists of a piezoelectric layer, one or more matching layers and a backing layer.
Vaishali Upadhye, Sudhir Agashe
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Investigating the thermal stability of 1-3 piezoelectric composite transducers by varying the thermal conductivity and glass transition temperature of the polymeric filler material [PDF]
, 2002 The thermal behaviour of a number of 1-3 piezoelectric composite transducers is discussed. In particular, devices manufactured from a polymer filler with a relatively high glass to rubber transition temperature (T-g), and from polymer systems with ...
Benny, C.G. +6 more
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Hecheng xiangjiao gongye"Methylamine lead iodine was synthesized by low-temperature liquid phase method, and thermoplastic polyurethane elastomer/methylamine lead iodine composite films were prepared by tap casting method.
"SHU Ben-qin1, SUN Xiao-kai2, LI Xiao-qiang1, FU Yu-heng2, YI Juan2, HU Guo-hua2, XIONG Chuan-xi2"
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First Principles Theories of Piezoelectric Materials
, 2007 Piezoelectrics have long been studied using parameterized models fit to experimental data, starting with the work of Devonshire in 1954. Much has been learned using such approaches, but they can also miss major phenomena if the materials properties are ...
Cohen, R. E.
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Dielectric Properties of Piezoelectric Polyimides [PDF]
MRS Proceedings, 1996 ABSTRACTMolecular modeling and dielectric measurements are being used to identify mechanisms governing piezoelectric behavior in polyimides such as dipole orientation during poling, as well as degree of piezoelectricity achievable. Molecular modeling on polyimides containing pendant, polar nitrile (CN) groups has been completed to determine their ...
Z. Ounaies +3 more
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Materials & DesignPiezoelectric polymers are promising for replicating bone tissue’s piezoelectric properties. Typically, non-piezoelectric biopolymers are combined with piezoelectric particles, but this yields low piezoelectric output.
Francisco Fernández-Gil +6 more
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Nanomaterials, 2018 Flexible lead-free piezoelectric nanofibers, based on BNT-ST (0.78Bi0.5Na0.5TiO3-0.22SrTiO3) ceramic and poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) copolymers, were fabricated by an electrospinning method and the effects of the degree of ...
Sang Hyun Ji, Ji Sun Yun
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Improving the thermal stability of 1-3 piezoelectric composite transducers manufactured using thermally conductive polymeric fillers [PDF]
, 2003 With a view to improving the thermal stability of ultrasonic transducers prepared using 1-3 piezoelectric composites, the use of front face layers manufactured from thermally insulating and partially thermally conductive polymeric materials has been ...
Hayward, G. +3 more
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Domain Size Dependence of Piezoelectric Properties of Ferroelectrics
, 2004 The domain size dependence of piezoelectric properties of ferroelectrics is investigated using a continuum Ginzburg-Landau model that incorporates the long-range elastic and electrostatic interactions.
A. M. Bratkovsky +9 more
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