Fabrication and electrical properties of potassium niobate ferroelectric ceramics

被引：68

作者：

Nagata, Hajime ^{[1
]}

Matsumoto, Kenji ^{[1
]}

Hirosue, Tadayuki ^{[1
]}

Hiruma, Yuji ^{[1
]}

Takenaka, Tadashi ^{[1
]}

机构：

[1] Tokyo Univ Sci, Fac Sci & Technol, Chiba 2788510, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2007年 / 46卷 / 10B期

关键词：

lead-free; KNbO3; potassium niobate; piezoelectric properties; dielectric properties;

D O I：

10.1143/JJAP.46.7084

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Potassium niobate, KNbO3 (KN), ceramics were prepared by a modified conventional ceramic fabrication process to characterize their piezoelectric properties. The modified process involving two-stage calcination (first stage at 600 degrees C and second stage at 1000 degrees C is very effective in obtaining KN ceramics with a high density ratio > 96% and a high resistivity, p, of > 10(12) Omega.cm and that are nondeliquescent. The KN ceramics showed good piezoelectric properties in terms of the electromechanical coupling factor, k(33), the piezoelectric constant, d(33), and the mechanical quality factor, Q(m), which are 0.49, 91.7 pC/N, and 325, respectively. They were poled at a DC electric field of 5 kV/mm at 150 degrees C.

引用

页码：7084 / 7088

页数：5

共 20 条

[1] Preparation and characterization of KNbO3 ceramics [J].

Birol, H ;

Damjanovic, D ;

Setter, N .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2005, 88 (07) :1754-1759

[2] Dielectric study of KNbO3 ceramics over a large range of frequency (102 -109 hz) and temperature (300 -800 k) [J].

Dubernet, P ;

Ravez, J .

FERROELECTRICS, 1998, 211 (1-4) :51-66

[3] 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

[4]

FLUECKIGER U, 1977, J AM CERAM SOC, V56, P575

[5] Morphotropic phase boundary and electrical properties of bisumuth sodium titanate-potassium niobate solid-solution ceramics [J].

Ishii, H ;

Nagate, H ;

Takenaka, T .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2001, 40 (9B) :5660-5663

[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 CERAMI, P193

[8] Lead-free KNbO3 piezoceramics synthesized by pressure-less sintering [J].

Kakimoto, K ;

Masuda, I ;

Ohsato, H .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2005, 25 (12) :2719-2722

[9] Solid-solution structure and piezoelectric property of KNbO3 ceramics doped with small amounts of elements [J].

Kakimoto, K ;

Masuda, I ;

Ohsato, H .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2004, 43 (9B) :6706-6710

[10] Ferroelectric and piezoelectric properties of kNbO3 ceramics containing small amounts of LaFeO3 [J].

Kakimoto, K ;

Masuda, I ;

Ohsato, H .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2003, 42 (9B) :6102-6105

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