Results 41 to 50 of about 183,753 (281)

Wafer-scale integration of piezoelectric actuation capabilities in nanoelectromechanical systems resonators [PDF]

, 2013
International audienceIn this work, we demonstrate the integration of piezoelectric actuation means on arrays of nanocantilevers at the wafer scale. We use lead titanate zirconate (PZT) as piezoelectric material mainly because of its excellent actuation ...
Costecalde, Jean, Soyer, Caroline, Thomas, Olivier, Deü, Jean-François, Remiens, Denis, Nicu, Liviu, Mathieu, Fabrice, Dezest, Denis, Mazenq, Laurent   +8 more
core   +4 more sources

Flexible, Heat-Durable, and Highly Sensitive Piezoelectrets from Cyclic Olefin Copolymer with Microhoneycomb Structure

Micromachines, 2023
This paper discusses the fabrication and characterization of cyclic olefin copolymer (COC)-based pseudo-piezoelectric materials (piezoelectrets) with exceptionally high piezoelectric activity, and their potential use in sensing applications ...
Hui Wang, Xiaolin Wang, Changchun Zeng
doaj   +1 more source

Investigation of Resonance Characteristics of More Than 10 000 Metal‐Coated Silicon MEMS Cantilevers Using Machine Learning

Advanced Engineering Materials, EarlyView.
More than 10 000 metal‐coated silicon MEMS cantilevers are fabricated and characterized to build a large‐scale experimental dataset spanning multiple vibrational modes. Machine learning algorithms are benchmarked to predict resonance frequency and quality factor, with ensemble based models achieving accuracy approaching experimental uncertainty.
Sina Zare Pakzad, Saurabh Thorat, Andre Loch Gesing, Dominik Huber, Christopher Zellner, Patrick Egger, Georg Pfusterschmied, Ulrich Schmid, Michael Schneider   +8 more
wiley   +1 more source

Natural frequency of beams with embedded piezoelectric sensors and actuators

, 2007
A mathematical model is developed to study the natural frequency of beams with embedded piezoelectric sensors and actuators. The piezoelectric sensors/actuators in a non-piezoelectric matrix (host beam) are analyzed as two inhomogeneity problems by using
Della, Christian N., Shu, Dongwei
core   +2 more sources

3C-Silicon Carbide Microresonators for Timing and Frequency Reference

Micromachines, 2016
In the drive to miniaturise and integrate reference oscillator components, microelectromechanical systems (MEMS) resonators are excellent candidates to replace quartz crystals.
Graham S. Wood, Boris Sviličić, Enrico Mastropaolo, Rebecca Cheung   +3 more
doaj   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

Advanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti, Kubra Kocak, Andrea Michel, Enrico Cavarzerani, Ali Raza, Petr Rohzin, Nouha Loudhaief, Saimir Frroku, Nicolò Baldovin, Hazrat Bilal, Alvise Perosa, Maurizio Selva, Flavio Rizzolio, Luca Sbuelz, Sabrina Tamburini, Domenico De Fazio, Giovanni Antonio Salvatore   +16 more
wiley   +1 more source

Micro Coriolis Mass Flow Sensor with Piezoelectric Transducers for Both Actuation and Readout [PDF]

, 2022
We have realized a micro Coriolis mass flow sensor with piezoelectric transducers for both actuation and readout, resulting in lower power consumption and improved robustness to shock in comparison to the current actuation and readout methods.
Zeng, Yaxiang, Remco J. Wiegerink, Lötters, Joost C., Yaxiang Zeng, Joost C. Lotters, Wiegerink, Remco J.   +5 more
core   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Characterisation of screen printable piezoelectric thick-films

, 1997
Experimental techniques for measuring piezoelectric coefficient d33 of screen printed thick-film lead zirconate totanate (PZT) pastes are described, together with a comparison of these values for different paste formulations. In particular, the effect of
Harris, N.R., Atkinson, J.K., White, N.M., Dargie, P.G., Sion, R.P.   +4 more
core   +2 more sources

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

Advanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang, Temesgen Tadeyos Zate, Peiren Wang, Soumyajit Mojumder, Elo Overgaard Mogensen, Oriol Gavalda‐Diaz, Zihe Li, Shitong Zhou, Ajeet Kumar, James Roscow, Hamideh Khanbareh, Astri Bjørnetun Haugen, Florian Bouville   +12 more
wiley   +1 more source