Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/5881
Title: Local Microstructure Evolution of Bismuth Sodium Titanate-Based Lead-Free Piezoelectric Systems Across the Morphotropic Phase Boundary Region
Authors: Liu, Y
Withers, RL
Wang, J
Norén, L
Studer, AJ
Li, Y
Keywords: ELECTRON DIFFRACTION
BISMUTH
SODIUM
TITANIUM
BARIUM
OXYGEN
Issue Date: 12-Sep-2012
Publisher: World Scientific Publishing Co
Citation: LIU, Y., WITHERS, R.L., WANG, J., NORÉN, L., STUDER, A.J., & LI, Y. (2012). Local microstructure evolution of bismuth sodium titanate-based lead-free piezoelectric systems across the morphotropic phase boundary region. Journal of Advanced Dielectrics, 02(04), Article Number 1230012.
Abstract: Morphotropic phase boundary (MPB) containing piezoelectric systems generally exhibit enhanced piezoelectric performance at compositions within, or close to, the MPB region. The mechanism/s underlying such enhancement, however, are still contentious due to complex micro/nanostructure and apparently inherent local structural variability associated with octahedral tilt disorder/platelet precipitates in such piezoelectric materials. This paper reviews some recent structural analysis results from Bi0.5Na0.5TiO3 (BNT) and other binary, lead-free, piezoelectric materials systems derived from it via electron diffraction and in situ neutron diffraction. The results suggest that intrinsically existing local microstructure (LMS) in BNT essentially continues across the MPB region. The LMS, originating from inherent octahedral tilt disorder, is strongly temperature-, electric field-, pressure- and chemical composition-dependent, and may help to explain a series of phenomena observed in BNT-based binary materials systems, including the enhanced piezoelectric effect in the region of the MPB. © 2012 World Scientific Publishing Co.
Gov't Doc #: 5099
URI: http://dx.doi.org/10.1142/S2010135X12300125
http://apo.ansto.gov.au/dspace/handle/10238/5881
ISSN: 2010-135X
Appears in Collections:Journal Articles

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