Microstructure and electrical properties of potassium strontium niobate (KSr2Nb5O15) ceramics

Liangliang Liu; Feng Gao; Guoxin Hu; Jiangnan Liu; Jinjin Li

doi:10.1016/j.jallcom.2013.05.093

Microstructure and electrical properties of potassium strontium niobate (KSr₂Nb₅O₁₅) ceramics

Liangliang Liu, Feng Gao, Guoxin Hu, Jiangnan Liu, Jinjin Li

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

High-density tungsten bronze KSr₂Nb₅O₁₅ (KSN) ceramics doped with 2 mol% Bi2O3 were synthesized by using a conventional two-step sintering method with KSN seed. The effects of KSN seed content on microstructure and electric properties of the ceramics were investigated. It was found that the seed addition was favorable to the densification of KSN ceramics. The specimen with 25 mol% seed exhibited the best electric properties with values of D_t = 23.53%, P_r = 3.23 μC/cm² and d33 = 64 pC/N. In addition, pinched loops (ferroelectric hysteresis, P-E curve) were observed in the KSN ceramics, which may lead to novel application in nonlinear actuators. This work provided information on the interrelation between seed content and subsequent properties when preparing dense KSN textured ceramics by using (R)TGG method.

Original language	English
Pages (from-to)	93-100
Number of pages	8
Journal	Journal of Alloys and Compounds
Volume	580
DOIs	https://doi.org/10.1016/j.jallcom.2013.05.093
State	Published - 2013

Keywords

Dielectric relaxor
Lead-free ceramics
Microstructure

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10.1016/j.jallcom.2013.05.093

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title = "Microstructure and electrical properties of potassium strontium niobate (KSr2Nb5O15) ceramics",

abstract = "High-density tungsten bronze KSr2Nb5O15 (KSN) ceramics doped with 2 mol% Bi2O3 were synthesized by using a conventional two-step sintering method with KSN seed. The effects of KSN seed content on microstructure and electric properties of the ceramics were investigated. It was found that the seed addition was favorable to the densification of KSN ceramics. The specimen with 25 mol% seed exhibited the best electric properties with values of Dt = 23.53%, Pr = 3.23 μC/cm2 and d33 = 64 pC/N. In addition, pinched loops (ferroelectric hysteresis, P-E curve) were observed in the KSN ceramics, which may lead to novel application in nonlinear actuators. This work provided information on the interrelation between seed content and subsequent properties when preparing dense KSN textured ceramics by using (R)TGG method.",

keywords = "Dielectric relaxor, Lead-free ceramics, Microstructure",

author = "Liangliang Liu and Feng Gao and Guoxin Hu and Jiangnan Liu and Jinjin Li",

year = "2013",

doi = "10.1016/j.jallcom.2013.05.093",

language = "英语",

volume = "580",

pages = "93--100",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Microstructure and electrical properties of potassium strontium niobate (KSr2Nb5O15) ceramics

AU - Liu, Liangliang

AU - Gao, Feng

AU - Hu, Guoxin

AU - Liu, Jiangnan

AU - Li, Jinjin

PY - 2013

Y1 - 2013

N2 - High-density tungsten bronze KSr2Nb5O15 (KSN) ceramics doped with 2 mol% Bi2O3 were synthesized by using a conventional two-step sintering method with KSN seed. The effects of KSN seed content on microstructure and electric properties of the ceramics were investigated. It was found that the seed addition was favorable to the densification of KSN ceramics. The specimen with 25 mol% seed exhibited the best electric properties with values of Dt = 23.53%, Pr = 3.23 μC/cm2 and d33 = 64 pC/N. In addition, pinched loops (ferroelectric hysteresis, P-E curve) were observed in the KSN ceramics, which may lead to novel application in nonlinear actuators. This work provided information on the interrelation between seed content and subsequent properties when preparing dense KSN textured ceramics by using (R)TGG method.

AB - High-density tungsten bronze KSr2Nb5O15 (KSN) ceramics doped with 2 mol% Bi2O3 were synthesized by using a conventional two-step sintering method with KSN seed. The effects of KSN seed content on microstructure and electric properties of the ceramics were investigated. It was found that the seed addition was favorable to the densification of KSN ceramics. The specimen with 25 mol% seed exhibited the best electric properties with values of Dt = 23.53%, Pr = 3.23 μC/cm2 and d33 = 64 pC/N. In addition, pinched loops (ferroelectric hysteresis, P-E curve) were observed in the KSN ceramics, which may lead to novel application in nonlinear actuators. This work provided information on the interrelation between seed content and subsequent properties when preparing dense KSN textured ceramics by using (R)TGG method.

KW - Dielectric relaxor

KW - Lead-free ceramics

KW - Microstructure

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U2 - 10.1016/j.jallcom.2013.05.093

DO - 10.1016/j.jallcom.2013.05.093

M3 - 文章

AN - SCOPUS:84878687663

SN - 0925-8388

VL - 580

SP - 93

EP - 100

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Microstructure and electrical properties of potassium strontium niobate (KSr₂Nb₅O₁₅) ceramics

Abstract

Keywords

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