Piezoelectric properties and depolarization temperatures of (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3-BaTiO3 lead-free piezoelectric ceramics

被引：14

作者：

Hiruma, Yuji ^{[1
]}

Yoshii, Kazushige ^{[1
]}

Aoyagi, Rintaro ^{[1
]}

Nagata, Hajime ^{[1
]}

Takenaka, Tadashi ^{[1
]}

机构：

[1] Tokyo Univ Sci, Fac Sci & Technol, Dept Elect Engn, Noda, Chiba 2788510, Japan

来源：

ELECTROCERAMICS IN JAPAN IX | 2006年 / 320卷

关键词：

lead-free piezoelectric ceramics; bismuth sodium titanate; bismuth potassium titanate; morphotropic phase boundary; piezoelectric properties; dielectric properties; depolarization temperature;

D O I：

10.4028/www.scientific.net/KEM.320.23

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：

The piezoelectric properties of a solid solution based on the three components of bismuth sodium titanate, (Bi1/2Na1/2)TiO3 (BNT), bismuth potassium titanate, (Bi1/2K1/2)TiO3 (BKT), and barium titanate, BaTiO3 (BT), that is, x(Bi1/2Na1/2)TiO3-y(Bi1/2K1/2)TiO3-zBaTiO(3) [BNBKy:z(x); x+y+z=1] are investigated. Fine piezoelectric properties in lead-free piezoelectric ceramics were obtained near the MPB composition, and the highest electromechanical coupling factors, k(33) and k(p), and piezoelectric constant, 4133, were 0.58 and 0.36 for BNBK2:1(0.89) and 181 pC/N for BNBK2:1(0.88), respectively. In this study, we also measured the depolarization temperature, T-d, from the temperature dependence of dielectric and piezoelectric properties.

引用

页码：23 / 26

页数：4

共 10 条

[1] SOME PROPERTIES OF BISMUTH PEROVSKITES [J].

BUHRER, CF .

JOURNAL OF CHEMICAL PHYSICS, 1962, 36 (03) :798-&

[2] Ferroelectric and piezoelectric properties of (Bi1/2K1/2)TiO3 ceramics [J].

Hiruma, Y ;

Aoyagi, R ;

Nagata, H ;

Takenaka, T .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2005, 44 (7A) :5040-5044

[3]

Hiruma Y., 2004, MAT SCI ENG B-SOLID, V112, pS1125, DOI [10.14852/jcersjsuppl.112.0.S1125.0, DOI 10.14852/JCERSJSUPPL.112.0.S1125.0]

[4]

Jaffe B., 1971, Piezoelectric Ceramics

[5] Large piezoelectric constant and high Curie temperature of lead-free piezoelectric ceramic ternary system based on bismuth sodium titanate-bismuth potassium titanate-barium titanate near the morphotropic phase boundary [J].

Nagata, H ;

Yoshida, M ;

Makiuchi, Y ;

Takenaka, T .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2003, 42 (12) :7401-7403

[6] Lead-free piezoceramics [J].

Saito, Y ;

Takao, H ;

Tani, T ;

Nonoyama, T ;

Takatori, K ;

Homma, T ;

Nagaya, T ;

Nakamura, M .

NATURE, 2004, 432 (7013) :84-87

[7] Dielectric and piezoelectric properties of (Bi0.5Na0.5)TiO3-(Bi0.5K0.5)TiO3 systems [J].

Sasaki, A ;

Chiba, T ;

Mamiya, Y ;

Otsuki, E .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1999, 38 (9B) :5564-5567

[8]

SMOLENSKY GA, 1961, FIZ TVERD TELA, V2, P2651

[9] (BI1/2NA1/2)TIO3-BATIO3 SYSTEM FOR LEAD-FREE PIEZOELECTRIC CERAMICS [J].

TAKENAKA, T ;

MARUYAMA, K ;

SAKATA, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1991, 30 (9B) :2236-2239

[10] PHASE-TRANSITIONS AND SOFT MODES IN SODIUM BISMUTH TITANATE [J].

VAKHRUSHEV, SB ;

ISUPOV, VA ;

KVYATKOVSKY, BE ;

OKUNEVA, NM ;

PRONIN, IP ;

SMOLENSKY, GA ;

SYRNIKOV, PP .

FERROELECTRICS, 1985, 63 (1-4) :153-160

← 1 →