Results 51 to 60 of about 35,260 (285)

Lead-free 0–3-type composites: From piezoelectric sensitivity to modified figures of merit

Journal of Advanced Dielectrics, 2021
Effective piezoelectric properties, electromechanical coupling factors (ECF) and figures of merit (FOM) are studied in lead-free 0–3-type composites based on novel ferroelectric 0.965(K0.48Na0.52)(Nb0.96Sb0.04)O3–0.035Bi0.5Na0.5Zr0.15Hf0.75O3 ceramic ...
Ashura N. Isaeva, Vitaly Yu. Topolov
doaj   +1 more source

Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites

Advanced Functional Materials, EarlyView.
Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles, Alianna Maguire, Thomas Butruille, Jet Lem, Shuo Yang, Pedro Guerra Demingos, Sahar Choukir, Michel Haché, Boran Kumral, Katherine Jia, Charles Jia, Yu Zou, Chandra Veer Singh, Carlos M. Portela, Jun Lou, Pulickel M. Ajayan, Tobin Filleter   +16 more
wiley   +1 more source

Fabrication of Piezoelectric Composites Using High-Temperature Dielectrophoresis

Journal of Manufacturing and Materials Processing, 2019
In this paper, we present a method to create a highly sensitive piezoelectric quasi 1−3 composite using a thermoplastic material filled with a piezoelectric powder.
Jibran Khaliq, Theo Hoeks, Pim Groen
doaj   +1 more source

Calibration of piezoelectric positioning actuators using a reference voltage-to-displacement transducer based on quartz tuning forks

, 2012
We use a piezoelectric quartz tuning fork to calibrate the displacement of ceramic piezoelectric scanners which are widely employed in scanning probe microscopy.
Andres Castellanos-Gomez, Binnig, Carlos R. Arroyo, Gabino Rubio-Bollinger, Nicolás Agraït   +4 more
core   +1 more source

Discussion on `Characterization of 1-3 piezoelectric polymer composites - a numerical and analytical evaluation procedure for thickness mode vibrations' by C.V. Madhusudhana Rao, G. Prasad, Condens. Matter Phys., 2010, Vol.13, No.1, 13703 [PDF]

, 2014
In the paper entitled "Characterization of 1-3 piezoelectric polymer composites - a numerical and analytical evaluation procedure for thickness mode vibrations", the dependence of the thickness electromechanical coupling coefficient on the aspect ratio ...
Li, Z., Sun, Y.
core   +2 more sources

Pixelation‐Free, Monolithic Iontronic Pressure Sensors Enabling Large‐Area Simultaneous Pressure and Position Recognition via Machine Learning

Advanced Functional Materials, EarlyView.
A pixelation‐free, monolithic iontronic pressure sensor enables simultaneous pressure and position sensing over large areas. AC‐driven ion release generates spatially varying impedance pathways depending on the pressure. Machine learning algorithms effectively decouple overlapping pressure–position signals from the multichannel outputs, achieving high ...
Juhui Kim, Junseo Lee, Kwang‐Hun Choi, Seongil Im, Jae Hong Kim, Changsoon Choi, Junghwan Byun, Changhwan Shin, Ho Won Jang, Hyunsu Ju, Jung Ah Lim   +10 more
wiley   +1 more source

Response Analysis of a Piezoelectric Ceramic Transducer Pair Excited by Phase-Modulated Signals for Improved Echo Measurement

IEEE Access
The article is mainly devoted to the analysis of the transient process during the phase change of the intra-impulse modulated signal of the system, which is composed of a pair of piezoelectric ceramic transducers.
Premysl Janu, Pavel Dycka, Josef Bajer, Radek Bystricky, Barbora Odvarkova   +4 more
doaj   +1 more source

Molten hydroxide synthesis as an alternative to molten salt sythesis for producing K0.5Na0.5NbO3 lead free ceramics [PDF]

, 2011
Lead-free piezoelectric materials have grown in importance through increased environmental concern and subsequent EU and worldwide legislation, with the aspiration to reduce the use of Pb-based materials in all sectors. Integration of the next generation
Bortolani, Francesca, Dorey, Robert A., Lusiola, Tony, Zhang, Qi   +3 more
core   +1 more source

In Situ Amidation‐Derived Interfacial Modulation for Homogeneous Ultra‐High Nanoparticle Loading Toward Robust and Flexible Piezoelectric Composites

Advanced Functional Materials, EarlyView.
Synergistic interfacial strategy between inorganic ceramic fillers and polymer chains effectively inhibit particle aggregation and interfacial incompatibility. complex covalent and non‐covalent interfacial interactions promote superior uniformity, ultra‐high ceramic filler loading, and strong grain‐to‐grain connectivity, thereby enabling the ...
HakSu Jang, In Beom Heo, Changyeon Baek, Dong Won Jeon, Donghun Lee, Nagamalleswara Rao Alluri, Hyejeong Choi, HyoMin Jeon, SungHoon Kim, Hyunseung Kim, Jihun Choi, Hyun‐Soo Chang, Chang Kyu Jeong, Min‐Ku Lee, Jun Mo Koo, Tiandong Zhang, Geon‐Tae Hwang, Sung Beom Cho, Gyoung‐Ja Lee, Hyeong Min Jin, Kwi‐Il Park   +20 more
wiley   +1 more source

Construction Of A Piezoelectric-Based Resonance Ceramic Pressure Sensor Designed For High-Temperature Applications

Metrology and Measurement Systems, 2015
In this work the design aspects of a piezoelectric-based resonance ceramic pressure sensor made using low-temperature co-fired ceramic (LTCC) technology and designed for high-temperature applications is presented.
Belavič Darko, Bradeško Andraž, Zarnik Marina Santo, Rojac Tadej   +3 more
doaj   +1 more source