Effect of excess Bi2O3on the electrical properties and microstructure of (Bi1/2Na1/2)TiO3ceramics

X. X. Wang; X. G. Tang; Kin Wing Kwok; H. L.W. Chan; C. L. Choy

doi:10.1007/s00339-003-2350-y

Effect of excess Bi₂O₃on the electrical properties and microstructure of (Bi_1/2Na_1/2)TiO₃ceramics

X. X. Wang, X. G. Tang, Kin Wing Kwok, H. L.W. Chan, C. L. Choy

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

67 Citations (Scopus)

Abstract

(Bi1/2Na1/2)TiO3ceramics (BNT) with 0-6 mol% of excess Bi2O3are prepared by conventional solid-state sintering. The electrical properties of the samples are examined. The addition of excess Bi2O3reduces the leakage current of BNT ceramics significantly, thus facilitating the poling process, and improves their piezoelectric properties slightly for certain amounts of added Bi2O3. BNT ceramics have very high dielectric constants and dissipation factors at low frequency and high temperature due to their high conductivity. Adding excess Bi2O3to BNT ceramics affects their dielectric behavior and phase transition temperatures. Grain growth is suppressed by adding Bi2O3and no second phase is observed for BNT ceramics with up to 6 mol% of excess Bi2O3added.

Original language	English
Pages (from-to)	1071-1075
Number of pages	5
Journal	Applied Physics A: Materials Science and Processing
Volume	80
Issue number	5
DOIs	https://doi.org/10.1007/s00339-003-2350-y
Publication status	Published - 1 Feb 2005

ASJC Scopus subject areas

General Chemistry
General Materials Science

More information

10.1007/s00339-003-2350-y

Cite this

@article{059e8e4afa5344179b026c55f53f42de,

title = "Effect of excess Bi2O3on the electrical properties and microstructure of (Bi1/2Na1/2)TiO3ceramics",

abstract = "(Bi1/2Na1/2)TiO3ceramics (BNT) with 0-6 mol% of excess Bi2O3are prepared by conventional solid-state sintering. The electrical properties of the samples are examined. The addition of excess Bi2O3reduces the leakage current of BNT ceramics significantly, thus facilitating the poling process, and improves their piezoelectric properties slightly for certain amounts of added Bi2O3. BNT ceramics have very high dielectric constants and dissipation factors at low frequency and high temperature due to their high conductivity. Adding excess Bi2O3to BNT ceramics affects their dielectric behavior and phase transition temperatures. Grain growth is suppressed by adding Bi2O3and no second phase is observed for BNT ceramics with up to 6 mol% of excess Bi2O3added.",

author = "Wang, {X. X.} and Tang, {X. G.} and Kwok, {Kin Wing} and Chan, {H. L.W.} and Choy, {C. L.}",

year = "2005",

month = feb,

day = "1",

doi = "10.1007/s00339-003-2350-y",

language = "English",

volume = "80",

pages = "1071--1075",

journal = "Applied Physics A: Materials Science and Processing",

issn = "0947-8396",

publisher = "Federal Informational-Analytical Center of the Defense Industry",

number = "5",

}

TY - JOUR

T1 - Effect of excess Bi2O3on the electrical properties and microstructure of (Bi1/2Na1/2)TiO3ceramics

AU - Wang, X. X.

AU - Tang, X. G.

AU - Kwok, Kin Wing

AU - Chan, H. L.W.

AU - Choy, C. L.

PY - 2005/2/1

Y1 - 2005/2/1

N2 - (Bi1/2Na1/2)TiO3ceramics (BNT) with 0-6 mol% of excess Bi2O3are prepared by conventional solid-state sintering. The electrical properties of the samples are examined. The addition of excess Bi2O3reduces the leakage current of BNT ceramics significantly, thus facilitating the poling process, and improves their piezoelectric properties slightly for certain amounts of added Bi2O3. BNT ceramics have very high dielectric constants and dissipation factors at low frequency and high temperature due to their high conductivity. Adding excess Bi2O3to BNT ceramics affects their dielectric behavior and phase transition temperatures. Grain growth is suppressed by adding Bi2O3and no second phase is observed for BNT ceramics with up to 6 mol% of excess Bi2O3added.

AB - (Bi1/2Na1/2)TiO3ceramics (BNT) with 0-6 mol% of excess Bi2O3are prepared by conventional solid-state sintering. The electrical properties of the samples are examined. The addition of excess Bi2O3reduces the leakage current of BNT ceramics significantly, thus facilitating the poling process, and improves their piezoelectric properties slightly for certain amounts of added Bi2O3. BNT ceramics have very high dielectric constants and dissipation factors at low frequency and high temperature due to their high conductivity. Adding excess Bi2O3to BNT ceramics affects their dielectric behavior and phase transition temperatures. Grain growth is suppressed by adding Bi2O3and no second phase is observed for BNT ceramics with up to 6 mol% of excess Bi2O3added.

UR - http://www.scopus.com/inward/record.url?scp=21044436615&partnerID=8YFLogxK

U2 - 10.1007/s00339-003-2350-y

DO - 10.1007/s00339-003-2350-y

M3 - Journal article

SN - 0947-8396

VL - 80

SP - 1071

EP - 1075

JO - Applied Physics A: Materials Science and Processing

JF - Applied Physics A: Materials Science and Processing

IS - 5

ER -

Effect of excess Bi₂O₃on the electrical properties and microstructure of (Bi_1/2Na_1/2)TiO₃ceramics

Abstract

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this