Influence of nonstoichiometry and doping on electrical properties of (Na1/2Bi1/2)0.92Ba0.08TiO3 ceramics

被引：17

作者：

Chu, BJ ^{[1
]}

Li, GR ^{[1
]}

Yin, QR ^{[1
]}

Zhang, WZ ^{[1
]}

Chen, DR ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Lab Funct Inorgan Mat, Shanghai 200050, Peoples R China

来源：

ACTA PHYSICA SINICA | 2001年 / 50卷 / 10期

关键词：

lead-free piezoelectric ceramics; nonstoichiometry; doping; electrical properties;

D O I：

10.7498/aps.50.2012

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Influence of nonstoichiometry and doping on piezoelectric properties and depolarization temperature of lead-free piezoelectric ceramics (Na1/2Bi1/2)(0.92)Ba0.08TiO3 [NBBT] was studied. Nonstoichiometry of A-site can improve their piezoelectric properties. Doping in B-site has great influence on electric properties, which is similar to the corresponding rules of Pb(Ti, Zr) O-3-based ceramics. Variation of coupling effect of A-site cation on BO6 octahedra as results of nonstoichiometry, and the doping in NBBT ceramics leads to variations of the depolarization temperature. The higher the depolarization temperature of Na1/2Bi1/2TiO3-BaTiO3 ceramics studied,the lower the piezoelectric constant.

引用

页码：2012 / 2016

页数：5

共 12 条

[1]

[Anonymous], 1993, SILIC IND

[2]

Chu BJ, 2000, J INORG MATER, V15, P815

[3] CRYSTAL STABILITY AND THE THEORY OF FERROELECTRICITY [J].

COCHRAN, W .

ADVANCES IN PHYSICS, 1960, 9 (36) :387-423

[4] DIELECTRIC-PROPERTIES OF TETRAGONAL LANTHANUM-MODIFIED LEAD-ZIRCONATE-TITANATE CERAMICS [J].

DAI, XH ;

DIGIOVANNI, A ;

VIEHLAND, D .

JOURNAL OF APPLIED PHYSICS, 1993, 74 (05) :3399-3405

[5] Processing and electromechanical properties of (Bi0.5Na0.5)((1-1.5x))LaxTiO3 ceramics [J].

Herabut, A ;

Safari, A .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1997, 80 (11) :2954-2958

[6]

JANG XP, 2000, THESIS CHINESE ACAD

[7]

Kainik, 1960, SOV PHYS SOLID STATE, V2, P2982

[8] Lead-free piezoelectric ceramics of (Bi1/2Na1/2)TiO3-1/2(Bi2O3 center dot Sc2O3) system [J].

Nagata, H ;

Takenaka, T .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1997, 36 (9B) :6055-6057

[9]

Takenaka T., 1997, Ferroelectrics, V196, P175, DOI 10.1080/00150199708224156

[10] PIEZOELECTRIC PROPERTIES OF (BI1/2NA1/2)TIO3-BASED CERAMICS [J].

TAKENAKA, T ;

SAKATA, K ;

TODA, K .

FERROELECTRICS, 1990, 106 :375-380

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