Piezoelectric properties of CuO-added (Na 0.5K 0.5)NbO 3 ceramic multilayers

In Tae Seo, In Young Kang, You Jeong Cha, Jae Hong Choi, Sahn Nahm, Tae Hyun Sung, Hyun Chul Jung

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Multilayered ceramics (MLCs) laminated with 20 layers of CuO-added (Na 0.5K 0.5)NbO 3 (CNKN) tape were well sintered at 960°C with an average grain size of 5.0μm. They exhibited good piezoelectric properties of ε33T/ε0=709, d 33=114pC/N, k p=0.34 and Q m=793. The 80Ag/20Pd electrodes were well formed on the CNKN MLCs when they were co-fired at 960°C for 2h. A piezoelectric speaker fabricated using 6-layer CNKN MLCs exhibited an average sound pressure level (SPL) of 75dB in the range between 300 and 20,000Hz with a maximum SPL of 90dB. This value is comparable with that of a loud stereo radio, indicating that the CNKN MLC is a good candidate material for piezoelectric speakers.

Original languageEnglish
Pages (from-to)1085-1090
Number of pages6
JournalJournal of the European Ceramic Society
Volume32
Issue number5
DOIs
StatePublished - 2012 May 1

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Multilayers
Acoustic waves
Tapes
Electrodes

Keywords

  • Microstructure-final
  • Perovskite
  • Piezoelectric properties
  • Speaker
  • Tape casting

Cite this

Seo, In Tae ; Kang, In Young ; Cha, You Jeong ; Choi, Jae Hong ; Nahm, Sahn ; Sung, Tae Hyun ; Jung, Hyun Chul. / Piezoelectric properties of CuO-added (Na 0.5K 0.5)NbO 3 ceramic multilayers. In: Journal of the European Ceramic Society. 2012 ; Vol. 32, No. 5. pp. 1085-1090.
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Piezoelectric properties of CuO-added (Na 0.5K 0.5)NbO 3 ceramic multilayers. / Seo, In Tae; Kang, In Young; Cha, You Jeong; Choi, Jae Hong; Nahm, Sahn; Sung, Tae Hyun; Jung, Hyun Chul.

In: Journal of the European Ceramic Society, Vol. 32, No. 5, 01.05.2012, p. 1085-1090.

Research output: Contribution to journalArticle

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AU - Seo, In Tae

AU - Kang, In Young

AU - Cha, You Jeong

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AU - Nahm, Sahn

AU - Sung, Tae Hyun

AU - Jung, Hyun Chul

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