Enhanced piezoelectricity and nature of electric-field induced structural phase transformation in textured lead-free piezoelectric Na 0.5Bi 0.5TiO 3-BaTiO 3 ceramics

Deepam Maurya; Abhijit Pramanick; Ke An; Shashank Priya

doi:10.1063/1.4709404

Enhanced piezoelectricity and nature of electric-field induced structural phase transformation in textured lead-free piezoelectric Na _0.5Bi _0.5TiO ₃-BaTiO ₃ ceramics

Deepam Maurya, Abhijit Pramanick, Ke An, Shashank Priya

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

80 Scopus citations

Abstract

This letter provides a comparative description of the properties of textured and randomly oriented poly-crystalline lead-free piezoelectric 0.93(Na _0.5Bi _0.5TiO ₃)-0.07BaTiO ₃ (NBT-BT) ceramics. A high longitudinal piezoelectric constant of (d ₃₃) ∼ 322 pC/N was obtained in (001) _PC textured NBT-7BT ceramics, which is almost ∼2× times the d ₃₃ coefficient reported for randomly oriented ceramics of the same composition. In situ neutron diffraction experiments revealed that characteristically different structural responses are induced in textured and randomly oriented NBT-BT ceramics upon application of electric fields (E), which are likely related to the varying coherence lengths of polar nanoregions and internal stresses induced by domain switching.

Original language	English (US)
Article number	172906
Journal	Applied Physics Letters
Volume	100
Issue number	17
DOIs	https://doi.org/10.1063/1.4709404
State	Published - Apr 23 2012

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.4709404

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title = "Enhanced piezoelectricity and nature of electric-field induced structural phase transformation in textured lead-free piezoelectric Na 0.5Bi 0.5TiO 3-BaTiO 3 ceramics",

abstract = "This letter provides a comparative description of the properties of textured and randomly oriented poly-crystalline lead-free piezoelectric 0.93(Na 0.5Bi 0.5TiO 3)-0.07BaTiO 3 (NBT-BT) ceramics. A high longitudinal piezoelectric constant of (d 33) ∼ 322 pC/N was obtained in (001) PC textured NBT-7BT ceramics, which is almost ∼2× times the d 33 coefficient reported for randomly oriented ceramics of the same composition. In situ neutron diffraction experiments revealed that characteristically different structural responses are induced in textured and randomly oriented NBT-BT ceramics upon application of electric fields (E), which are likely related to the varying coherence lengths of polar nanoregions and internal stresses induced by domain switching.",

author = "Deepam Maurya and Abhijit Pramanick and Ke An and Shashank Priya",

note = "Funding Information: The authors gratefully acknowledge the financial support from Office of Basic Sciences, Department of Energy, and National Science Foundation. The neutron scattering measurements were carried out at the Spallation Neutron Source, which is operated with the support from the Division of Scientific User Facilities, Office of Basic Energy Sciences, US Department of Energy, under contract DE-AC05-00OR22725 with UT-Battelle, LLC. A.P. acknowledges the support from a Laboratory Directed Research and Development Fund of Oak Ridge National Laboratory.",

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doi = "10.1063/1.4709404",

language = "English (US)",

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AU - Pramanick, Abhijit

AU - An, Ke

AU - Priya, Shashank

N1 - Funding Information: The authors gratefully acknowledge the financial support from Office of Basic Sciences, Department of Energy, and National Science Foundation. The neutron scattering measurements were carried out at the Spallation Neutron Source, which is operated with the support from the Division of Scientific User Facilities, Office of Basic Energy Sciences, US Department of Energy, under contract DE-AC05-00OR22725 with UT-Battelle, LLC. A.P. acknowledges the support from a Laboratory Directed Research and Development Fund of Oak Ridge National Laboratory.

PY - 2012/4/23

Y1 - 2012/4/23

N2 - This letter provides a comparative description of the properties of textured and randomly oriented poly-crystalline lead-free piezoelectric 0.93(Na 0.5Bi 0.5TiO 3)-0.07BaTiO 3 (NBT-BT) ceramics. A high longitudinal piezoelectric constant of (d 33) ∼ 322 pC/N was obtained in (001) PC textured NBT-7BT ceramics, which is almost ∼2× times the d 33 coefficient reported for randomly oriented ceramics of the same composition. In situ neutron diffraction experiments revealed that characteristically different structural responses are induced in textured and randomly oriented NBT-BT ceramics upon application of electric fields (E), which are likely related to the varying coherence lengths of polar nanoregions and internal stresses induced by domain switching.

AB - This letter provides a comparative description of the properties of textured and randomly oriented poly-crystalline lead-free piezoelectric 0.93(Na 0.5Bi 0.5TiO 3)-0.07BaTiO 3 (NBT-BT) ceramics. A high longitudinal piezoelectric constant of (d 33) ∼ 322 pC/N was obtained in (001) PC textured NBT-7BT ceramics, which is almost ∼2× times the d 33 coefficient reported for randomly oriented ceramics of the same composition. In situ neutron diffraction experiments revealed that characteristically different structural responses are induced in textured and randomly oriented NBT-BT ceramics upon application of electric fields (E), which are likely related to the varying coherence lengths of polar nanoregions and internal stresses induced by domain switching.

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Enhanced piezoelectricity and nature of electric-field induced structural phase transformation in textured lead-free piezoelectric Na _0.5Bi _0.5TiO ₃-BaTiO ₃ ceramics

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