Low-temperature sintering and piezoelectric properties of (Na 0.5K0.5)NbO3 lead-free piezoelectric ceramics

Hwi Yeol Park, In Tae Seo, Jae Hong Choi, Sahn Nahm, Hyeung Gyu Lee

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

(Na0.5K0.5)NbO3 (NKN) ceramic with 1.5 mol% CuO added (NKNC) was well sintered even at a low temperature of 900°C with the addition of ZnO. Most of the ZnO reacted with the CuO and formed the liquid phase that assisted the densification of the specimens at 900°C. A few Zn2+ ions entered the matrix of the specimens and increased the coercive field (Ec) and Qm values of the specimens. High-piezoelectric properties of kp=0.37, Qm=755, and ε3 T0=327 were obtained from the NKNC ceramics containing 1.0 mol% ZnO sintered at 900°C for 2 h.

Original languageEnglish
Pages (from-to)36-39
Number of pages4
JournalJournal of the American Ceramic Society
Volume93
Issue number1
DOIs
Publication statusPublished - 2010 Jan 1

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Piezoelectric ceramics
Densification
ceramics
Sintering
Lead
Ions
Liquids
Temperature
liquid
matrix
ion
sintering

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Low-temperature sintering and piezoelectric properties of (Na 0.5K0.5)NbO3 lead-free piezoelectric ceramics. / Park, Hwi Yeol; Seo, In Tae; Choi, Jae Hong; Nahm, Sahn; Lee, Hyeung Gyu.

In: Journal of the American Ceramic Society, Vol. 93, No. 1, 01.01.2010, p. 36-39.

Research output: Contribution to journalArticle

Park, Hwi Yeol ; Seo, In Tae ; Choi, Jae Hong ; Nahm, Sahn ; Lee, Hyeung Gyu. / Low-temperature sintering and piezoelectric properties of (Na 0.5K0.5)NbO3 lead-free piezoelectric ceramics. In: Journal of the American Ceramic Society. 2010 ; Vol. 93, No. 1. pp. 36-39.
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