Enhanced Temperature Stability of (1-aEuroparts per thousandx)(K0.5Na0.5)0.94Li0.06NbO3-x(Bi0.5Na0.5)TiO3 Lead-Free Piezoelectric Ceramics

被引：18

作者：

Hao, J. G. ^{[1
]}

Xu, Z. J. ^{[1
]}

Chu, R. Q. ^{[1
]}

Zhang, Y. J. ^{[1
]}

Chen, Q. ^{[1
]}

Li, W. ^{[1
]}

Fu, P. ^{[1
]}

Zang, G. Z. ^{[1
]}

Li, G. R. ^{[2
]}

Yin, Q. R. ^{[2
]}

机构：

[1] Liaocheng Univ, Coll Mat Sci & Engn, Liaocheng 252059, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2010年 / 39卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Ceramics; niobates; dielectric properties; piezoelectric properties; temperature stability; POTASSIUM-SODIUM NIOBATE; HIGH CURIE-TEMPERATURE; SINTERING TEMPERATURE; ELECTRICAL-PROPERTIES; LI; MICROSTRUCTURE; FABRICATION; PROPERTY; SYSTEM; ION;

D O I：

10.1007/s11664-009-1030-x

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

(1 -aEuro parts per thousand x)(K0.5Na0.5)(0.94)Li0.06NbO3-x(Bi0.5Na0.5)TiO3 (KNLN6-xBNT) lead-free piezoelectric ceramics with dense microstructures and good temperature stability were prepared by conventional sintering. The effects of the BNT on the structure, electrical properties, and temperature stability of the ceramics were studied. The results showed that BNT doping shifted the polymorphic phase transition below room temperature and significantly improved the temperature stability of KNLN6 ceramics. It was found that the KNLN6 ceramics doped with 3 mol.% BNT exhibited good temperature stability in the temperature range of 25A degrees C to 180A degrees C, as well as good electrical properties (d (33) = 152 pC/N, k (p) = 37.1%, Q (m) = 108, epsilon (r) = 634, tan delta = 0.018 and T (c) = 415A degrees C), suggesting that this material should be an attractive lead-free material for piezoelectric applications.

引用

页码：347 / 354

页数：8

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