Results 11 to 20 of about 6,428,636 (278)

Heterostrain-enabled ultrahigh electrostrain in lead-free piezoelectric [PDF]

open access: yesNature Communications, 2022
Developing high-strain piezoelectric materials has been a long-term challenge. Here, the authors report one strategy to enhance the electrostrain via designing heterostrain through atomic-scale defect engineering and mesoscale domain engineering.
Wei Feng   +8 more
doaj   +7 more sources

Fabrication and Characterization of Aligned Flexible Lead-Free Piezoelectric Nanofibers for Wearable Device Applications [PDF]

open access: yesNanomaterials, 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
doaj   +2 more sources

Biologically Compatible Lead-Free Piezoelectric Composite for Acoustophoresis Based Particle Manipulation Techniques [PDF]

open access: yesSensors, 2021
This research paper is concentrated on the design of biologically compatible lead-free piezoelectric composites which may eventually replace traditional lead zirconium titanate (PZT) in micromechanical fluidics, the predominantly used ferroelectric ...
Tomas Janusas   +4 more
doaj   +2 more sources

Eliminating lead-exposure in nebulization therapy by lead-free piezoelectric [PDF]

open access: yesNature Communications
Present main-stream medical ultrasonic nebulizers contain Pb(Zr,Ti)O3-based piezoceramics, which could expose the patients to toxic lead when the acidic liquid medicine, compounded with ultrasonic vibration, corrodes the piezoceramics. Enormous amount of
Fang-Zhou Yao   +15 more
doaj   +2 more sources

Highly transparent lead-free piezoelectric haptic device

open access: yesCommunications Materials
Acoustic haptic technology adds touch sensations to human-machine interfaces by integrating piezoelectric actuators onto touchscreens. Traditional piezoelectric haptic technologies use opaque lead-containing ceramics that are both toxic and visible.
Longfei Song   +8 more
doaj   +2 more sources

The synthesis and characterisation of lead-free piezoelectric ceramics [PDF]

open access: yes, 2012
With a growing awareness of the environmental and health hazards of lead, there has been renewed interest in developing lead-free alternatives to lead zirconate titanate (PZT), which currently dominates the market for piezoelectric materials. Some of the
Roberts, William Michael
core   +7 more sources

Progress in engineering high strain lead-free piezoelectric ceramics

open access: yesScience and Technology of Advanced Materials, 2010
Environmental concerns are strongly driving the need to replace the lead-based piezoelectric materials currently employed as multilayer actuators. The current review describes both compositional and structural engineering approaches to achieve enhanced ...
Serhiy O Leontsev and Richard E Eitel
doaj   +1 more source

Synthesis and processing of KNN powders and thick films for MEMS devices [PDF]

open access: yes, 2012
Pb-free piezoelectric materials have grown in importance through increased environmental concern related to the presence of Pb and the subsequent legislation that has arisen including directives such as Waste Electrical and Electronic Equipment (WEEE ...
Lusiola, Tony
core   +7 more sources

Author Correction: Eliminating lead-exposure in nebulization therapy by lead-free piezoelectric [PDF]

open access: yesNature Communications
Fang-Zhou Yao   +15 more
doaj   +2 more sources

Lead-free piezoelectric ceramics: Alternatives for PZT? [PDF]

open access: yesJournal of Electroceramics, 2007
Investigations in the development of lead-free piezoelectric ceramics have recently claimed comparable properties to the lead-based ferroelectric perovskites, represented by Pb(Zr,Ti)O3, or PZT. In this work, the scientific and technical impact of these materials is contrasted with the various families of “soft” and “hard” PZTs. On the scientific front,
Thomas R. Shrout, Shujun J. Zhang
openaire   +1 more source

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