Impedance spectroscopy study and electrical behavior of PMN-PZT actuators joined by ceramic slurry

Jung Hyuk Koh, Mun S. Ha, Soon Jong Jeong, Jae Sung Song, Tae Geun Kim, Sang M. Koo, Jae Geun Ha

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The solid solution of Pb(Mg,Nb)O3-Pb(Zr,TiO) O3 materials have high piezoelectric constant of 600 ∼ 650 pC/N and electromechanical coupling coefficient k p of 0.65. Due to such high piezoelectric constant and electromechanical coupling coefficient, Pb(Mg,Nb)O3-Pb(Zr,TiO)O3 materials have been attracted attentions for the applications of multilayer ceramic actuators. Actuators can be produced by staking piezoelectric ceramic materials and inner electrodes, alternatively. However, it is difficult to fabricate huge ceramic actuators without any serious problems during the process conditions. Because ceramic are easily cracked during the sintering process, due to strikingly different shrinkage rate between the ceramic materials and metal electrodes. In this research, new jointing methods will be proposed for huge ceramic actuators, and then their electrical properties were investigated. Time dependent leakage current and impedance spectroscopy were employed to expect device performances.

Original languageEnglish
Pages (from-to)403-406
Number of pages4
JournalJournal of Electroceramics
Volume16
Issue number4
DOIs
Publication statusPublished - 2006 Jul 1

Fingerprint

Actuators
actuators
Spectroscopy
impedance
ceramics
Electromechanical coupling
spectroscopy
coupling coefficients
Electrodes
Piezoelectric materials
Ceramic materials
Leakage currents
electrodes
piezoelectric ceramics
Solid solutions
Multilayers
Electric properties
Sintering
shrinkage
Metals

Keywords

  • Actuators
  • Green body joining
  • PMN-PZT
  • Spectroscopy

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Impedance spectroscopy study and electrical behavior of PMN-PZT actuators joined by ceramic slurry. / Koh, Jung Hyuk; Ha, Mun S.; Jeong, Soon Jong; Song, Jae Sung; Kim, Tae Geun; Koo, Sang M.; Ha, Jae Geun.

In: Journal of Electroceramics, Vol. 16, No. 4, 01.07.2006, p. 403-406.

Research output: Contribution to journalArticle

Koh, Jung Hyuk ; Ha, Mun S. ; Jeong, Soon Jong ; Song, Jae Sung ; Kim, Tae Geun ; Koo, Sang M. ; Ha, Jae Geun. / Impedance spectroscopy study and electrical behavior of PMN-PZT actuators joined by ceramic slurry. In: Journal of Electroceramics. 2006 ; Vol. 16, No. 4. pp. 403-406.
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AU - Koo, Sang M.

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