In-situ X-ray diffraction study of ferroelectric domain switching in orthorhombic nkn ceramics

David A. Hall; Feridoon Azough; Nichola Middleton-Stewart; Robert J. Cernik; Robert Freer; Tsutomu Mori; Hans Kungl; Caroline Curfs

doi:10.1142/S1793604710000944

In-situ X-ray diffraction study of ferroelectric domain switching in orthorhombic nkn ceramics

David A. Hall, Feridoon Azough, Nichola Middleton-Stewart, Robert J. Cernik, Robert Freer, Tsutomu Mori, Hans Kungl, Caroline Curfs

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

Abstract

The family of perovskite ferroelectrics based on sodium potassium niobate (NKN) ceramics exhibit useful piezoelectric properties and show potential for the replacement of conventional lead based piezoceramics. In the present study, iron-doped NKN ceramics were prepared by a solid state reaction method. Ferroelectric hysteresis measurements indicated that a remanent polarization value approaching 0.4Cm-2 could be obtained by poling under a continuous AC electric field with amplitude of 3 MV m-1. X-ray diffraction (XRD) patterns of these materials were recorded in transmission during poling, using high energy synchrotron X-rays with a wavelength of 1.55 × 10-11m. Changes in crystallographic texture were observed during poling as a result of 90° and 60°/120° domain switching. The strain due to ferroelectric domain switching in orthorhombic NKN is described in terms of the differences in transformation strain between different domain variants, with reference to the high temperature cubic lattice. © 2010 World Scientific Publishing Company.

Original language	English
Pages (from-to)	31-34
Number of pages	3
Journal	Functional Materials Letters
Volume	3
Issue number	1
DOIs	https://doi.org/10.1142/S1793604710000944
Publication status	Published - Mar 2010

Keywords

ferroelectric
Sodium potassium niobate (NKN)
synchrotron XRD

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10.1142/S1793604710000944

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title = "In-situ X-ray diffraction study of ferroelectric domain switching in orthorhombic nkn ceramics",

abstract = "The family of perovskite ferroelectrics based on sodium potassium niobate (NKN) ceramics exhibit useful piezoelectric properties and show potential for the replacement of conventional lead based piezoceramics. In the present study, iron-doped NKN ceramics were prepared by a solid state reaction method. Ferroelectric hysteresis measurements indicated that a remanent polarization value approaching 0.4Cm-2 could be obtained by poling under a continuous AC electric field with amplitude of 3 MV m-1. X-ray diffraction (XRD) patterns of these materials were recorded in transmission during poling, using high energy synchrotron X-rays with a wavelength of 1.55 × 10-11m. Changes in crystallographic texture were observed during poling as a result of 90° and 60°/120° domain switching. The strain due to ferroelectric domain switching in orthorhombic NKN is described in terms of the differences in transformation strain between different domain variants, with reference to the high temperature cubic lattice. {\textcopyright} 2010 World Scientific Publishing Company.",

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author = "Hall, {David A.} and Feridoon Azough and Nichola Middleton-Stewart and Cernik, {Robert J.} and Robert Freer and Tsutomu Mori and Hans Kungl and Caroline Curfs",

year = "2010",

month = mar,

doi = "10.1142/S1793604710000944",

language = "English",

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pages = "31--34",

journal = "Functional Materials Letters",

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T1 - In-situ X-ray diffraction study of ferroelectric domain switching in orthorhombic nkn ceramics

AU - Hall, David A.

AU - Azough, Feridoon

AU - Middleton-Stewart, Nichola

AU - Cernik, Robert J.

AU - Freer, Robert

AU - Mori, Tsutomu

AU - Kungl, Hans

AU - Curfs, Caroline

PY - 2010/3

Y1 - 2010/3

N2 - The family of perovskite ferroelectrics based on sodium potassium niobate (NKN) ceramics exhibit useful piezoelectric properties and show potential for the replacement of conventional lead based piezoceramics. In the present study, iron-doped NKN ceramics were prepared by a solid state reaction method. Ferroelectric hysteresis measurements indicated that a remanent polarization value approaching 0.4Cm-2 could be obtained by poling under a continuous AC electric field with amplitude of 3 MV m-1. X-ray diffraction (XRD) patterns of these materials were recorded in transmission during poling, using high energy synchrotron X-rays with a wavelength of 1.55 × 10-11m. Changes in crystallographic texture were observed during poling as a result of 90° and 60°/120° domain switching. The strain due to ferroelectric domain switching in orthorhombic NKN is described in terms of the differences in transformation strain between different domain variants, with reference to the high temperature cubic lattice. © 2010 World Scientific Publishing Company.

AB - The family of perovskite ferroelectrics based on sodium potassium niobate (NKN) ceramics exhibit useful piezoelectric properties and show potential for the replacement of conventional lead based piezoceramics. In the present study, iron-doped NKN ceramics were prepared by a solid state reaction method. Ferroelectric hysteresis measurements indicated that a remanent polarization value approaching 0.4Cm-2 could be obtained by poling under a continuous AC electric field with amplitude of 3 MV m-1. X-ray diffraction (XRD) patterns of these materials were recorded in transmission during poling, using high energy synchrotron X-rays with a wavelength of 1.55 × 10-11m. Changes in crystallographic texture were observed during poling as a result of 90° and 60°/120° domain switching. The strain due to ferroelectric domain switching in orthorhombic NKN is described in terms of the differences in transformation strain between different domain variants, with reference to the high temperature cubic lattice. © 2010 World Scientific Publishing Company.

KW - ferroelectric

KW - Sodium potassium niobate (NKN)

KW - synchrotron XRD

U2 - 10.1142/S1793604710000944

DO - 10.1142/S1793604710000944

M3 - Article

SN - 1793-6047

VL - 3

SP - 31

EP - 34

JO - Functional Materials Letters

JF - Functional Materials Letters

IS - 1

ER -

In-situ X-ray diffraction study of ferroelectric domain switching in orthorhombic nkn ceramics

Abstract

Keywords

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