Results 21 to 30 of about 14,415,700 (341)

Processing and Characterization of BCZT-Modified BiFeO3-BaTiO3 Piezoelectric Ceramics

open access: yesCrystals, 2021
The synthesis of non-lead piezoelectric ceramics (1–z)(0.65Bi1.05Fe2O3-0.35BaTiO3)-z Ba(Ti0.8Zr0.2)O3-(Ba0.7Ca0.3)TiO3 using a solid state method and a quenching strategy was investigated.
Rizwan Ahmed Malik, Hussein Alrobei
doaj   +1 more source

Lead‐Free Halide Perovskites for Direct X‐Ray Detectors

open access: yesAdvancement of science, 2023
Lead halide perovskites have made remarkable progress in the field of radiation detection owing to the excellent and unique optoelectronic properties. However, the instability and the toxicity of lead‐based perovskites have greatly hindered its practical
Xiangshun Geng   +11 more
semanticscholar   +1 more source

Emission Trading Systems and the Optimal Technology Mix [PDF]

open access: yes, 2011
Cap and trade mechanisms enjoy increasing importance in environmental legislation worldwide. The most prominent example is probably given by the European Union Emission Trading System (EU ETS) designed to limit emissions of greenhouse gases, several ...
Zöttl, Gregor
core   +5 more sources

Progress towards High-Efficiency and Stable Tin-Based Perovskite Solar Cells

open access: yesEnergies, 2020
Since its invention in 2009, Perovskite solar cells (PSCs) has attracted great attention because of its low cost, numerous options of efficiency enhancement, ease of manufacturing and high-performance.
Syed Afaq Ali Shah   +8 more
doaj   +1 more source

Anomalous Decay of Electronically Stabilized Lead Mesas on Ni(111)\ud [PDF]

open access: yes, 2011
With their low surface free energy, lead films tend to wet surfaces. However, quantum size effects (QSE) often lead to islands with distinct preferred heights. We study thin lead films on Ni(111) using low energy electron microscopy and selected area low
Bollmann, Tjeerd R.J.   +3 more
core   +2 more sources

Stretchable, Breathable, and Stable Lead‐Free Perovskite/Polymer Nanofiber Composite for Hybrid Triboelectric and Piezoelectric Energy Harvesting

open access: yesAdvances in Materials, 2022
Halide‐perovskite‐based mechanical energy harvesters display excellent electrical output due to their unique ferroelectricity and dielectricity. However, their high toxicity and moisture sensitivity impede their practical applications.
Feng Jiang   +7 more
semanticscholar   +1 more source

Bifurcated polarization rotation in bismuth-based piezoelectrics [PDF]

open access: yes, 1999
ABO3 perovskite-type solid solutions display a large variety of structural and physical properties, which can be tuned by chemical composition or external parameters such as temperature, pressure, strain, electric, or magnetic fields.
A Tarantola   +10 more
core   +4 more sources

Effect of trace elements on the interface reactions between two lead-free solders and copper or nickel substrates [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2007
Traditional Sn-Pb solder alloys are being replaced, because of environmental and health concerns about lead toxicity. Among some alternative alloy systems, the Sn-Zn and Sn-Cu base alloy systems have been studied and reveal promising properties.
Soares D.   +5 more
doaj   +1 more source

Factorial design and design of experiments for developing novel lead free solder alloy with Sn, Cu and Ni

open access: yesInternational Journal for Simulation and Multidisciplinary Design Optimization, 2020
Inherent toxicity makes lead a banned material in solder alloy making process. Lead-tin alloy was a favorable alloy used for soldering in electronic packaging manufacturers.
S Jayesh, Elias Jacob, Guru Manoj
doaj   +1 more source

Direct measurement of electrocaloric effect in lead-free Ba(SnxTi1-x)O3 ceramics [PDF]

open access: yes, 2017
In this study, we report on investigation of the electrocaloric (EC) effect in lead-free Ba(SnxTi1-x)O3 (BSnT) ceramics with compositions in the range of 0.08 ≤ x ≤ 0.15 by the direct measurement method using a differential scanning calorimeter.
Dkhil, Brahim   +6 more
core   +3 more sources

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