Characterization of Pb-Free KNbO3- and (Na,Bi)TiO3-Based Piezoelectric Single-Crystals Using X-ray and Neutron Diffraction

In view of serious environmental concerns with traditional Pb-based piezoelectrics, the search for new Pb-free alternatives has intensified recently. A thorough investigation of structure-property relationships in Pb-free piezoelectrics is desired in order to design new material compositions with hi...

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Main Author: Abhijit Pramanick
Format: Article
Language:English
Published: MDPI AG 2018-01-01
Series:Crystals
Subjects:
Online Access:http://www.mdpi.com/2073-4352/8/2/49
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author Abhijit Pramanick
author_facet Abhijit Pramanick
author_sort Abhijit Pramanick
collection DOAJ
description In view of serious environmental concerns with traditional Pb-based piezoelectrics, the search for new Pb-free alternatives has intensified recently. A thorough investigation of structure-property relationships in Pb-free piezoelectrics is desired in order to design new material compositions with high electromechanical properties that can be operated over a broader range of conditions. Recent availability of high-quality single crystals has not only opened the possibility for achieving multifold enhancements in the electromechanical properties in this new class of materials, but has also provided opportunities to undertake fundamental studies on their structure-property relationships. In the following pages, I review some of the recent X-ray and neutron diffraction studies of Pb-free piezoelectric single crystals, which have provided novel insights into their multiscale stimuli-induced structural mechanisms, including phase transitions, nanoscale structural ordering, lattice instability, and domain re-orientation. Opportunities and challenges for future progress in this area of study are discussed.
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spelling doaj.art-d77934da252849d29d95bb59d62b73f72022-12-22T04:00:51ZengMDPI AGCrystals2073-43522018-01-01824910.3390/cryst8020049cryst8020049Characterization of Pb-Free KNbO3- and (Na,Bi)TiO3-Based Piezoelectric Single-Crystals Using X-ray and Neutron DiffractionAbhijit Pramanick0Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, ChinaIn view of serious environmental concerns with traditional Pb-based piezoelectrics, the search for new Pb-free alternatives has intensified recently. A thorough investigation of structure-property relationships in Pb-free piezoelectrics is desired in order to design new material compositions with high electromechanical properties that can be operated over a broader range of conditions. Recent availability of high-quality single crystals has not only opened the possibility for achieving multifold enhancements in the electromechanical properties in this new class of materials, but has also provided opportunities to undertake fundamental studies on their structure-property relationships. In the following pages, I review some of the recent X-ray and neutron diffraction studies of Pb-free piezoelectric single crystals, which have provided novel insights into their multiscale stimuli-induced structural mechanisms, including phase transitions, nanoscale structural ordering, lattice instability, and domain re-orientation. Opportunities and challenges for future progress in this area of study are discussed.http://www.mdpi.com/2073-4352/8/2/49Pb-free piezoelectricssingle-crystalsX-ray and neutron diffraction
spellingShingle Abhijit Pramanick
Characterization of Pb-Free KNbO3- and (Na,Bi)TiO3-Based Piezoelectric Single-Crystals Using X-ray and Neutron Diffraction
Crystals
Pb-free piezoelectrics
single-crystals
X-ray and neutron diffraction
title Characterization of Pb-Free KNbO3- and (Na,Bi)TiO3-Based Piezoelectric Single-Crystals Using X-ray and Neutron Diffraction
title_full Characterization of Pb-Free KNbO3- and (Na,Bi)TiO3-Based Piezoelectric Single-Crystals Using X-ray and Neutron Diffraction
title_fullStr Characterization of Pb-Free KNbO3- and (Na,Bi)TiO3-Based Piezoelectric Single-Crystals Using X-ray and Neutron Diffraction
title_full_unstemmed Characterization of Pb-Free KNbO3- and (Na,Bi)TiO3-Based Piezoelectric Single-Crystals Using X-ray and Neutron Diffraction
title_short Characterization of Pb-Free KNbO3- and (Na,Bi)TiO3-Based Piezoelectric Single-Crystals Using X-ray and Neutron Diffraction
title_sort characterization of pb free knbo3 and na bi tio3 based piezoelectric single crystals using x ray and neutron diffraction
topic Pb-free piezoelectrics
single-crystals
X-ray and neutron diffraction
url http://www.mdpi.com/2073-4352/8/2/49
work_keys_str_mv AT abhijitpramanick characterizationofpbfreeknbo3andnabitio3basedpiezoelectricsinglecrystalsusingxrayandneutrondiffraction