Structural transition and giant strain induced by A- and B-site concurrent donor doping in Bi0.5(Na0.84K0.16)0.5TiO3-SrTiO3 ceramics

Rizwan Ahmed Malik; Ali Hussain; Jamil Ur Rahman; Adnan Maqbool; Tae Kwon Song; Won Jeong Kim; Sun Youn Ryou; Myong Ho Kim

doi:10.1016/j.matlet.2014.12.104

Structural transition and giant strain induced by A- and B-site concurrent donor doping in Bi_0.5(Na_0.84K_0.16)_0.5TiO₃-SrTiO₃ ceramics

Rizwan Ahmed Malik, Ali Hussain, Jamil Ur Rahman, Adnan Maqbool, Tae Kwon Song, Won Jeong Kim, Sun Youn Ryou, Myong Ho Kim

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

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Abstract

Lead-free 0.96[{Bi_0.5(Na_0.84K_0.16)_0.5}_1-xLa_x(Ti_1-yNb_y)O₃]-0.04SrTiO₃ (BNKLTN-ST, with x, y=0.00-0.030) ceramics were synthesised by conventional solid state reaction (CSSR) method. Results showed that A- and B-site concurrent donor doping into BNKT-ST ceramics induces a phase transition from coexistence of ferroelectric tetragonal and rhombohedral to a relaxor pseudocubic phase with a significant disruption of the long-range ferroelectric order. At an optimal composition (x, y=0.010), a giant field-induced strain of S=0.38% was achieved at an applied field of 5 kV/mm, with a corresponding normalized strain (S_max/E_max) of 760 pm/V. Besides this, at further low field of 4 kV/mm, the S_max/E_max value slightly decreased to 725 pm/V, which is still highest among those obtained in non-textured lead-free BNT-based ceramics at such a low field.

Original language	English
Pages (from-to)	148-150
Number of pages	3
Journal	Materials Letters
Volume	143
DOIs	https://doi.org/10.1016/j.matlet.2014.12.104
State	Published - 15 Mar 2015
Externally published	Yes

Keywords

Ferroelectrics
Field-induced strain
Piezoelectric materials

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10.1016/j.matlet.2014.12.104

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@article{0a91c84bf90a4d518d3a0112e0f38dd4,

title = "Structural transition and giant strain induced by A- and B-site concurrent donor doping in Bi0.5(Na0.84K0.16)0.5TiO3-SrTiO3 ceramics",

abstract = "Lead-free 0.96[\{Bi0.5(Na0.84K0.16)0.5\}1-xLax(Ti1-yNby)O3]-0.04SrTiO3 (BNKLTN-ST, with x, y=0.00-0.030) ceramics were synthesised by conventional solid state reaction (CSSR) method. Results showed that A- and B-site concurrent donor doping into BNKT-ST ceramics induces a phase transition from coexistence of ferroelectric tetragonal and rhombohedral to a relaxor pseudocubic phase with a significant disruption of the long-range ferroelectric order. At an optimal composition (x, y=0.010), a giant field-induced strain of S=0.38\% was achieved at an applied field of 5 kV/mm, with a corresponding normalized strain (Smax/Emax) of 760 pm/V. Besides this, at further low field of 4 kV/mm, the Smax/Emax value slightly decreased to 725 pm/V, which is still highest among those obtained in non-textured lead-free BNT-based ceramics at such a low field.",

keywords = "Ferroelectrics, Field-induced strain, Piezoelectric materials",

author = "Malik, \{Rizwan Ahmed\} and Ali Hussain and Rahman, \{Jamil Ur\} and Adnan Maqbool and Song, \{Tae Kwon\} and Kim, \{Won Jeong\} and Ryou, \{Sun Youn\} and Kim, \{Myong Ho\}",

year = "2015",

month = mar,

day = "15",

doi = "10.1016/j.matlet.2014.12.104",

language = "English",

volume = "143",

pages = "148--150",

journal = "Materials Letters",

issn = "0167-577X",

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}

TY - JOUR

T1 - Structural transition and giant strain induced by A- and B-site concurrent donor doping in Bi0.5(Na0.84K0.16)0.5TiO3-SrTiO3 ceramics

AU - Malik, Rizwan Ahmed

AU - Hussain, Ali

AU - Rahman, Jamil Ur

AU - Maqbool, Adnan

AU - Song, Tae Kwon

AU - Kim, Won Jeong

AU - Ryou, Sun Youn

AU - Kim, Myong Ho

PY - 2015/3/15

Y1 - 2015/3/15

N2 - Lead-free 0.96[{Bi0.5(Na0.84K0.16)0.5}1-xLax(Ti1-yNby)O3]-0.04SrTiO3 (BNKLTN-ST, with x, y=0.00-0.030) ceramics were synthesised by conventional solid state reaction (CSSR) method. Results showed that A- and B-site concurrent donor doping into BNKT-ST ceramics induces a phase transition from coexistence of ferroelectric tetragonal and rhombohedral to a relaxor pseudocubic phase with a significant disruption of the long-range ferroelectric order. At an optimal composition (x, y=0.010), a giant field-induced strain of S=0.38% was achieved at an applied field of 5 kV/mm, with a corresponding normalized strain (Smax/Emax) of 760 pm/V. Besides this, at further low field of 4 kV/mm, the Smax/Emax value slightly decreased to 725 pm/V, which is still highest among those obtained in non-textured lead-free BNT-based ceramics at such a low field.

AB - Lead-free 0.96[{Bi0.5(Na0.84K0.16)0.5}1-xLax(Ti1-yNby)O3]-0.04SrTiO3 (BNKLTN-ST, with x, y=0.00-0.030) ceramics were synthesised by conventional solid state reaction (CSSR) method. Results showed that A- and B-site concurrent donor doping into BNKT-ST ceramics induces a phase transition from coexistence of ferroelectric tetragonal and rhombohedral to a relaxor pseudocubic phase with a significant disruption of the long-range ferroelectric order. At an optimal composition (x, y=0.010), a giant field-induced strain of S=0.38% was achieved at an applied field of 5 kV/mm, with a corresponding normalized strain (Smax/Emax) of 760 pm/V. Besides this, at further low field of 4 kV/mm, the Smax/Emax value slightly decreased to 725 pm/V, which is still highest among those obtained in non-textured lead-free BNT-based ceramics at such a low field.

KW - Ferroelectrics

KW - Field-induced strain

KW - Piezoelectric materials

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U2 - 10.1016/j.matlet.2014.12.104

DO - 10.1016/j.matlet.2014.12.104

M3 - Article

AN - SCOPUS:84922702391

SN - 0167-577X

VL - 143

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JO - Materials Letters

JF - Materials Letters

ER -

Structural transition and giant strain induced by A- and B-site concurrent donor doping in Bi_0.5(Na_0.84K_0.16)_0.5TiO₃-SrTiO₃ ceramics

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