Morphotropic phases in Pb(Zn1/3Nb2/3)O3 -PbTiO3-BaTiO3 ceramics

X. Wang; Haydn Chen

doi:10.4028/www.scientific.net/KEM.214-215.3

Morphotropic phases in Pb(Zn_1/3Nb_2/3)O₃ -PbTiO₃-BaTiO₃ ceramics

X. Wang^*, Haydn Chen

^*Corresponding author for this work

International College of Semiconductor Technology

Research output: Contribution to journal › Conference article › peer-review

Abstract

There usually is a morphotropic phase boundary (MPB) in solid solutions which are composed of two or more ferroelectrics with different symmetry. Materials in the range of MPB often exhibit much better electric properties than those far from MPB. However, there is no MPB in PZN-BT system. Paraelectric phase of Ba(Zn_1/3Nb_2/3)O₃ (BZN) is realized as an implicit component in PZN-BT, whose presence decreases phase transition temperature, weakens dielectric, piezoelectric and ferroelectric properties. Analogously, there is an implicit BZN component in PZN-PT-BT system. MPB exists in PZN-PT-BT system with BT content no more than 25mol%, because there are more amount of implicit PT component and less amount of implicit BZN component. Annealing was used to investigate the variation of morphotropic phases in PZN-PT-BT ceramics.

Original language	English
Pages (from-to)	3-8
Number of pages	6
Journal	Key Engineering Materials
Volume	214-215
DOIs	https://doi.org/10.4028/www.scientific.net/KEM.214-215.3
State	Published - 1 Jan 2002
Event	1st Asian Meeting of Electroceramics - Kawasaki, Japan Duration: 26 Oct 2000 → 27 Oct 2000

Keywords

Ferroelectric ceramics
Morphotropic phase
Perovskite
Phase transition
Solid solution

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title = "Morphotropic phases in Pb(Zn1/3Nb2/3)O3 -PbTiO3-BaTiO3 ceramics",

abstract = "There usually is a morphotropic phase boundary (MPB) in solid solutions which are composed of two or more ferroelectrics with different symmetry. Materials in the range of MPB often exhibit much better electric properties than those far from MPB. However, there is no MPB in PZN-BT system. Paraelectric phase of Ba(Zn1/3Nb2/3)O3 (BZN) is realized as an implicit component in PZN-BT, whose presence decreases phase transition temperature, weakens dielectric, piezoelectric and ferroelectric properties. Analogously, there is an implicit BZN component in PZN-PT-BT system. MPB exists in PZN-PT-BT system with BT content no more than 25mol%, because there are more amount of implicit PT component and less amount of implicit BZN component. Annealing was used to investigate the variation of morphotropic phases in PZN-PT-BT ceramics.",

keywords = "Ferroelectric ceramics, Morphotropic phase, Perovskite, Phase transition, Solid solution",

author = "X. Wang and Haydn Chen",

year = "2002",

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TY - JOUR

T1 - Morphotropic phases in Pb(Zn1/3Nb2/3)O3 -PbTiO3-BaTiO3 ceramics

AU - Wang, X.

AU - Chen, Haydn

PY - 2002/1/1

Y1 - 2002/1/1

N2 - There usually is a morphotropic phase boundary (MPB) in solid solutions which are composed of two or more ferroelectrics with different symmetry. Materials in the range of MPB often exhibit much better electric properties than those far from MPB. However, there is no MPB in PZN-BT system. Paraelectric phase of Ba(Zn1/3Nb2/3)O3 (BZN) is realized as an implicit component in PZN-BT, whose presence decreases phase transition temperature, weakens dielectric, piezoelectric and ferroelectric properties. Analogously, there is an implicit BZN component in PZN-PT-BT system. MPB exists in PZN-PT-BT system with BT content no more than 25mol%, because there are more amount of implicit PT component and less amount of implicit BZN component. Annealing was used to investigate the variation of morphotropic phases in PZN-PT-BT ceramics.

AB - There usually is a morphotropic phase boundary (MPB) in solid solutions which are composed of two or more ferroelectrics with different symmetry. Materials in the range of MPB often exhibit much better electric properties than those far from MPB. However, there is no MPB in PZN-BT system. Paraelectric phase of Ba(Zn1/3Nb2/3)O3 (BZN) is realized as an implicit component in PZN-BT, whose presence decreases phase transition temperature, weakens dielectric, piezoelectric and ferroelectric properties. Analogously, there is an implicit BZN component in PZN-PT-BT system. MPB exists in PZN-PT-BT system with BT content no more than 25mol%, because there are more amount of implicit PT component and less amount of implicit BZN component. Annealing was used to investigate the variation of morphotropic phases in PZN-PT-BT ceramics.

KW - Ferroelectric ceramics

KW - Morphotropic phase

KW - Perovskite

KW - Phase transition

KW - Solid solution

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M3 - Conference article

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EP - 8

JO - Key Engineering Materials

JF - Key Engineering Materials

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Y2 - 26 October 2000 through 27 October 2000

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