Structure and piezoelectric properties of (Bi0.5Na0.5)1-x-y-zBax(Bi0.5Li0.5)ySrzTiO3lead-free ceramics

Dunmin Lin; Kin Wing Kwok

doi:10.1142/S1793604710000853

Structure and piezoelectric properties of (Bi_0.5Na_0.5)_1-x-y-zBa_x(Bi_0.5Li_0.5)_ySr_zTiO₃lead-free ceramics

Dunmin Lin, Kin Wing Kwok

Research output: Journal article publication › Journal article › Academic research › peer-review

4 Citations (Scopus)

Abstract

Lead-free (Bi0.5Na0.5)1-x-y-zBax(Bi0.5Li0.5)ySrzTiO3ceramics were prepared by an ordinary sintering method and their structure and piezoelectric properties have been studied. X-ray diffraction patterns show that Ba2+, Li+and Sr2+diffuse into the Bi0.5Na0.5TiO3lattices to form a solid solution with a pure perovskite structure and a morphotropic phase boundary (MPB) between rhombohedral and tetragonal phases is formed at 0.04 ≤ x ≤ 0.08 and z < 0.06. The content of Li+has no obvious influence on the crystal structure of the ceramics. The ceramics situated within the MPB exhibit a lower coercive field Ecand a larger remanent polarization Pr. Because of the formation of the MPB, lower Ecand larger Pr, the ceramics with x = 0.06, y = 0.075 - 0.125 and z = 0-0.02 possess improved piezoelectric properties. The optimum d33(235 pC/N) and kp(36.3%) are reached at x/y/z = 0.06/0.125/0.02 and 0.06/0.075/0.02, respectively. The deformed PE loop is also observed near or above Td.

Original language	English
Pages (from-to)	49-53
Number of pages	5
Journal	Functional Materials Letters
Volume	3
Issue number	1
DOIs	https://doi.org/10.1142/S1793604710000853
Publication status	Published - 1 Mar 2010

Keywords

Bi Na TiO 0.5 0.5 3
dielectric properties
Lead-free
piezoelectric properties

ASJC Scopus subject areas

General Materials Science

More information

10.1142/S1793604710000853

Cite this

@article{7d7bd1c7b09f4d8fab28ca51a934bc45,

title = "Structure and piezoelectric properties of (Bi0.5Na0.5)1-x-y-zBax(Bi0.5Li0.5)ySrzTiO3lead-free ceramics",

abstract = "Lead-free (Bi0.5Na0.5)1-x-y-zBax(Bi0.5Li0.5)ySrzTiO3ceramics were prepared by an ordinary sintering method and their structure and piezoelectric properties have been studied. X-ray diffraction patterns show that Ba2+, Li+and Sr2+diffuse into the Bi0.5Na0.5TiO3lattices to form a solid solution with a pure perovskite structure and a morphotropic phase boundary (MPB) between rhombohedral and tetragonal phases is formed at 0.04 ≤ x ≤ 0.08 and z < 0.06. The content of Li+has no obvious influence on the crystal structure of the ceramics. The ceramics situated within the MPB exhibit a lower coercive field Ecand a larger remanent polarization Pr. Because of the formation of the MPB, lower Ecand larger Pr, the ceramics with x = 0.06, y = 0.075 - 0.125 and z = 0-0.02 possess improved piezoelectric properties. The optimum d33(235 pC/N) and kp(36.3%) are reached at x/y/z = 0.06/0.125/0.02 and 0.06/0.075/0.02, respectively. The deformed PE loop is also observed near or above Td.",

keywords = "Bi Na TiO 0.5 0.5 3, dielectric properties, Lead-free, piezoelectric properties",

author = "Dunmin Lin and Kwok, {Kin Wing}",

year = "2010",

month = mar,

day = "1",

doi = "10.1142/S1793604710000853",

language = "English",

volume = "3",

pages = "49--53",

journal = "Functional Materials Letters",

issn = "1793-6047",

publisher = "World Scientific",

number = "1",

}

TY - JOUR

T1 - Structure and piezoelectric properties of (Bi0.5Na0.5)1-x-y-zBax(Bi0.5Li0.5)ySrzTiO3lead-free ceramics

AU - Lin, Dunmin

AU - Kwok, Kin Wing

PY - 2010/3/1

Y1 - 2010/3/1

N2 - Lead-free (Bi0.5Na0.5)1-x-y-zBax(Bi0.5Li0.5)ySrzTiO3ceramics were prepared by an ordinary sintering method and their structure and piezoelectric properties have been studied. X-ray diffraction patterns show that Ba2+, Li+and Sr2+diffuse into the Bi0.5Na0.5TiO3lattices to form a solid solution with a pure perovskite structure and a morphotropic phase boundary (MPB) between rhombohedral and tetragonal phases is formed at 0.04 ≤ x ≤ 0.08 and z < 0.06. The content of Li+has no obvious influence on the crystal structure of the ceramics. The ceramics situated within the MPB exhibit a lower coercive field Ecand a larger remanent polarization Pr. Because of the formation of the MPB, lower Ecand larger Pr, the ceramics with x = 0.06, y = 0.075 - 0.125 and z = 0-0.02 possess improved piezoelectric properties. The optimum d33(235 pC/N) and kp(36.3%) are reached at x/y/z = 0.06/0.125/0.02 and 0.06/0.075/0.02, respectively. The deformed PE loop is also observed near or above Td.

AB - Lead-free (Bi0.5Na0.5)1-x-y-zBax(Bi0.5Li0.5)ySrzTiO3ceramics were prepared by an ordinary sintering method and their structure and piezoelectric properties have been studied. X-ray diffraction patterns show that Ba2+, Li+and Sr2+diffuse into the Bi0.5Na0.5TiO3lattices to form a solid solution with a pure perovskite structure and a morphotropic phase boundary (MPB) between rhombohedral and tetragonal phases is formed at 0.04 ≤ x ≤ 0.08 and z < 0.06. The content of Li+has no obvious influence on the crystal structure of the ceramics. The ceramics situated within the MPB exhibit a lower coercive field Ecand a larger remanent polarization Pr. Because of the formation of the MPB, lower Ecand larger Pr, the ceramics with x = 0.06, y = 0.075 - 0.125 and z = 0-0.02 possess improved piezoelectric properties. The optimum d33(235 pC/N) and kp(36.3%) are reached at x/y/z = 0.06/0.125/0.02 and 0.06/0.075/0.02, respectively. The deformed PE loop is also observed near or above Td.

KW - Bi Na TiO 0.5 0.5 3

KW - dielectric properties

KW - Lead-free

KW - piezoelectric properties

UR - http://www.scopus.com/inward/record.url?scp=77958584079&partnerID=8YFLogxK

U2 - 10.1142/S1793604710000853

DO - 10.1142/S1793604710000853

M3 - Journal article

SN - 1793-6047

VL - 3

SP - 49

EP - 53

JO - Functional Materials Letters

JF - Functional Materials Letters

IS - 1

ER -