Structural and piezoelectric properties of MnO2-added 0.95(Na0.5K0.5)NbO3-0.05SrTiO3 ceramics

In Tae Seo, Chang Hoi Choi, Min Soo Jang, Bo Yun Kim, Guifang Han, Sahn Nahm, Kyung Hoon Cho, Jong Hoo Paik

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The structural and piezoelectric properties of the xmol% MnO 2-added 0.95(Na0.5-x/200K0.5-x/200)NbO 3-0.05SrTiO3 [(NK)xMN-ST] ceramics were investigated. A dense microstructure with enlarged grains was formed for the specimens sintered at 1040°C through liquid-phase sintering. However, the grain size decreased for the specimen sintered at 1060°C because of the formation of a large amount of the liquid phase. Therefore, the microstructural variations in the (NK)xMN-ST ceramics can be explained by liquid-phase-assisted abnormal grain growth. The specimens sintered at 1020 and 1060°C showed low piezoelectric properties because of their low relative density and small grain size, respectively. On the other hand, the (NK)xMN-ST ceramic with x = 0.1 sintered at 1040°C showed promising piezoelectric properties: d33 =260pC/N, kp = 0.42, Qm = 202 and εT 330 = 1291.

Original languageEnglish
Pages (from-to)47-50
Number of pages4
JournalSensors and Actuators, A: Physical
Volume200
DOIs
Publication statusPublished - 2013 Jan 1

Fingerprint

ceramics
Liquid phase sintering
liquid phases
Liquids
grain size
Grain growth
liquid phase sintering
Microstructure
microstructure

Keywords

  • Lead free
  • Microstructure
  • MnO
  • NKN-ST
  • Piezoelectric

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Instrumentation

Cite this

Structural and piezoelectric properties of MnO2-added 0.95(Na0.5K0.5)NbO3-0.05SrTiO3 ceramics. / Seo, In Tae; Choi, Chang Hoi; Jang, Min Soo; Kim, Bo Yun; Han, Guifang; Nahm, Sahn; Cho, Kyung Hoon; Paik, Jong Hoo.

In: Sensors and Actuators, A: Physical, Vol. 200, 01.01.2013, p. 47-50.

Research output: Contribution to journalArticle

Seo, In Tae ; Choi, Chang Hoi ; Jang, Min Soo ; Kim, Bo Yun ; Han, Guifang ; Nahm, Sahn ; Cho, Kyung Hoon ; Paik, Jong Hoo. / Structural and piezoelectric properties of MnO2-added 0.95(Na0.5K0.5)NbO3-0.05SrTiO3 ceramics. In: Sensors and Actuators, A: Physical. 2013 ; Vol. 200. pp. 47-50.
@article{992e396de58345569a22aa33e7776ad9,
title = "Structural and piezoelectric properties of MnO2-added 0.95(Na0.5K0.5)NbO3-0.05SrTiO3 ceramics",
abstract = "The structural and piezoelectric properties of the xmol{\%} MnO 2-added 0.95(Na0.5-x/200K0.5-x/200)NbO 3-0.05SrTiO3 [(NK)xMN-ST] ceramics were investigated. A dense microstructure with enlarged grains was formed for the specimens sintered at 1040°C through liquid-phase sintering. However, the grain size decreased for the specimen sintered at 1060°C because of the formation of a large amount of the liquid phase. Therefore, the microstructural variations in the (NK)xMN-ST ceramics can be explained by liquid-phase-assisted abnormal grain growth. The specimens sintered at 1020 and 1060°C showed low piezoelectric properties because of their low relative density and small grain size, respectively. On the other hand, the (NK)xMN-ST ceramic with x = 0.1 sintered at 1040°C showed promising piezoelectric properties: d33 =260pC/N, kp = 0.42, Qm = 202 and εT 33/ε0 = 1291.",
keywords = "Lead free, Microstructure, MnO, NKN-ST, Piezoelectric",
author = "Seo, {In Tae} and Choi, {Chang Hoi} and Jang, {Min Soo} and Kim, {Bo Yun} and Guifang Han and Sahn Nahm and Cho, {Kyung Hoon} and Paik, {Jong Hoo}",
year = "2013",
month = "1",
day = "1",
doi = "10.1016/j.sna.2012.10.040",
language = "English",
volume = "200",
pages = "47--50",
journal = "Sensors and Actuators, A: Physical",
issn = "0924-4247",
publisher = "Elsevier",

}

TY - JOUR

T1 - Structural and piezoelectric properties of MnO2-added 0.95(Na0.5K0.5)NbO3-0.05SrTiO3 ceramics

AU - Seo, In Tae

AU - Choi, Chang Hoi

AU - Jang, Min Soo

AU - Kim, Bo Yun

AU - Han, Guifang

AU - Nahm, Sahn

AU - Cho, Kyung Hoon

AU - Paik, Jong Hoo

PY - 2013/1/1

Y1 - 2013/1/1

N2 - The structural and piezoelectric properties of the xmol% MnO 2-added 0.95(Na0.5-x/200K0.5-x/200)NbO 3-0.05SrTiO3 [(NK)xMN-ST] ceramics were investigated. A dense microstructure with enlarged grains was formed for the specimens sintered at 1040°C through liquid-phase sintering. However, the grain size decreased for the specimen sintered at 1060°C because of the formation of a large amount of the liquid phase. Therefore, the microstructural variations in the (NK)xMN-ST ceramics can be explained by liquid-phase-assisted abnormal grain growth. The specimens sintered at 1020 and 1060°C showed low piezoelectric properties because of their low relative density and small grain size, respectively. On the other hand, the (NK)xMN-ST ceramic with x = 0.1 sintered at 1040°C showed promising piezoelectric properties: d33 =260pC/N, kp = 0.42, Qm = 202 and εT 33/ε0 = 1291.

AB - The structural and piezoelectric properties of the xmol% MnO 2-added 0.95(Na0.5-x/200K0.5-x/200)NbO 3-0.05SrTiO3 [(NK)xMN-ST] ceramics were investigated. A dense microstructure with enlarged grains was formed for the specimens sintered at 1040°C through liquid-phase sintering. However, the grain size decreased for the specimen sintered at 1060°C because of the formation of a large amount of the liquid phase. Therefore, the microstructural variations in the (NK)xMN-ST ceramics can be explained by liquid-phase-assisted abnormal grain growth. The specimens sintered at 1020 and 1060°C showed low piezoelectric properties because of their low relative density and small grain size, respectively. On the other hand, the (NK)xMN-ST ceramic with x = 0.1 sintered at 1040°C showed promising piezoelectric properties: d33 =260pC/N, kp = 0.42, Qm = 202 and εT 33/ε0 = 1291.

KW - Lead free

KW - Microstructure

KW - MnO

KW - NKN-ST

KW - Piezoelectric

UR - http://www.scopus.com/inward/record.url?scp=84885381464&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84885381464&partnerID=8YFLogxK

U2 - 10.1016/j.sna.2012.10.040

DO - 10.1016/j.sna.2012.10.040

M3 - Article

VL - 200

SP - 47

EP - 50

JO - Sensors and Actuators, A: Physical

JF - Sensors and Actuators, A: Physical

SN - 0924-4247

ER -