Dielectric and piezoelectric characteristics of the non-stoichiometric (Na,K)NbO3 ceramics doped with CuO

被引：40

作者：

Lee, Yuhyong ^{[1
]}

Yoo, Juhyun ^{[1
]}

Lee, Kabsoo ^{[1
]}

Kim, Insung ^{[2
]}

Song, Jaesung ^{[2
]}

Park, Yong-Wook ^{[3
]}

机构：

[1] Semyung Univ, Dept Elect Engn, Jechon 390711, Chungbuk, South Korea

[2] Battery Piezoelec Devices Res Ctr KERI, Chang Won 64112, South Korea

[3] Namseoul Uiversity, Cheonan 330707, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 506卷 / 02期

关键词：

Non-stoichiometric; NKNS ceramics; CuO addition; Electromechanical coupling coefficient (k(p)); Mechanical quality factor (Q(m)); ELECTRICAL-PROPERTIES; MICROSTRUCTURE; TEMPERATURE; MNO2;

D O I：

10.1016/j.jallcom.2010.07.102

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, the non-stoichiometric composition [(Na0.5K0.5)(0.97)(Nb0.96Sb0.04)]O-3 + x mol% CuO + 0.2 wt% Ag2O (where x = 0, 0.2, 0.4,0.6, 0.8, 1.0, respectively) ceramics were fabricated as a function of the amount of CuO addition. Then, their dielectric and piezoelectric properties were investigated. With a 0.8 mol% CuO content, these ceramics (abbreviated as NKNS) showed excellent values of density = 4.459 g/cm(3), electromechanical coupling coefficient (k(p)) = 0.469, mechanical quality factor (Q(m)) = 540, dielectric constant (epsilon(r)) = 410 and piezoelectric constant (d(33)) = 70 pC/N at the sintering temperature of 1080 degrees C, respectively. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：872 / 876

页数：5

共 17 条

[1] Effect of CuO and MnO2 on sintering temperature, microstructure, and piezoelectric properties of 0.95(K0.5Na0.5)NbO3-0.05BaTiO3 ceramics [J].

Ahn, Cheol-Woo ;

Nahm, Sahn ;

Karmarkar, Makarand ;

Viehland, Dwight ;

Kang, Dong-Heon ;

Bae, Kyoo-Sik ;

Priya, Shashank .

MATERIALS LETTERS, 2008, 62 (20) :3594-3596

[2] PIEZOELECTRIC AND DIELECTRIC PROPERTIES OF CERAMICS IN THE SYSTEM POTASSIUM SODIUM NIOBATE [J].

EGERTON, L ;

DILLON, DM .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1959, 42 (09) :438-442

[3] (Na0.5K0.5)NbO3-LiTaO3 lead-free piezoelectric ceramics [J].

Guo, YP ;

Kakimoto, K ;

Ohsato, H .

MATERIALS LETTERS, 2005, 59 (2-3) :241-244

[4] Structure and electrical properties of lead-free (Na0.5K0.5)Nbo3-BaTiO3 ceramics [J].

Guo, YP ;

Kakimoto, K ;

Ohsato, H .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2004, 43 (9B) :6662-6666

[5] Dielectric and piezoelectric properties of Cu2+-doped alkali Niobates [J].

Hagh, N. Marandian ;

Kerman, K. ;

Jadidian, B. ;

Safari, A. .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2009, 29 (11) :2325-2332

[6] HOT PRESSING OF POTASSIUM-SODIUM NIOBATES [J].

JAEGER, RE ;

EGERTON, L .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1962, 45 (05) :209-213

[7]

Jaffe B., 1971, Piezoelectric Ceramics

[8]

KIM DH, 2009, J KEEME, V22, P925

[9] DIELECTRIC AND PIEZOELECTRIC CHARACTERISTICS OF 0.07Pb (Mn1/3Nb2/3) O3-0.10Pb (Ni1/3Nb2/3) O3-0.83Pb(Zr0.48Ti0.52) O3 CERAMICS ACCORDING TO THE HEATING RATE [J].

Lee, Yuhyong ;

Lee, Sangho ;

Yoo, Juhyun ;

Kim, Insung ;

Song, Jaesung .

INTEGRATED FERROELECTRICS, 2008, 104 :8-15

[10] Piezoelectric and ferroelectric properties of KxNa1-xNbO3 lead-free ceramics with MnO2 and CuO doping [J].

Lin, Dunmin ;

Kwok, K. W. ;

Chan, H. L. W. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 461 (1-2) :273-278

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