Finite-size-effect on a very large length scale in NBT-based lead-free piezoelectrics

Finite-size-effect on a very large length scale in NBT-based lead-free piezoelectrics

Na0.5Bi0.5TiO3-based lead-free piezoelectrics are considered for potential replacement of the lead-based commercial piezoceramics in high-power transducer applications. We have examined the role of grain size in influencing the structural-polar inhomogeneity of stoichiometric and off-stoichiometric...

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Bibliographic Details
Main Authors: Anupam Mishra, Dipak Kumar Khatua, Gobinda Das Adhikary, Naveen Kumar, Uma Shankar, Rajeev Ranjan
Format: Article
Language:English
Published: World Scientific Publishing 2019-10-01
Series:Journal of Advanced Dielectrics
Subjects:
lead-free piezoelectrics
na0.5bi0.5tio3
size effect
crystal structure
depolarization temperature
Online Access:http://www.worldscientific.com/doi/pdf/10.1142/S2010135X19500358
Description
Summary:Na0.5Bi0.5TiO3-based lead-free piezoelectrics are considered for potential replacement of the lead-based commercial piezoceramics in high-power transducer applications. We have examined the role of grain size in influencing the structural-polar inhomogeneity of stoichiometric and off-stoichiometric Na0.5Bi0.5TiO3 (NBT), and its morphotropic-phase-boundary (MPB) derivative 0.94Na0.5Bi0.5TiO3-0.06BaTiO3 (NBT-6BT). Our study reveals that size effect comes into play in these systems on a very large length scale (on the scale of microns) considerably affecting its global structure and properties.
ISSN:2010-135X
2010-1368

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