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

doi:10.1016/j.jeurceramsoc.2011.11.020

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

Department of Materials Science and Engineering

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

16 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 language	English
Pages (from-to)	1085-1090
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	32
Issue number	5
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2011.11.020
Publication status	Published - 2012 May

Keywords

Microstructure-final
Perovskite
Piezoelectric properties
Speaker
Tape casting

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1016/j.jeurceramsoc.2011.11.020

Cite this

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title = "Piezoelectric properties of CuO-added (Na 0.5K 0.5)NbO 3 ceramic multilayers",

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.",

keywords = "Microstructure-final, Perovskite, Piezoelectric properties, Speaker, Tape casting",

author = "Seo, {In Tae} and Kang, {In Young} and Cha, {You Jeong} and Choi, {Jae Hong} and Sahn Nahm and Sung, {Tae Hyun} and Jung, {Hyun Chul}",

year = "2012",

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AU - Seo, In Tae

AU - Kang, In Young

AU - Cha, You Jeong

AU - Choi, Jae Hong

AU - Nahm, Sahn

AU - Sung, Tae Hyun

AU - Jung, Hyun Chul

PY - 2012/5

Y1 - 2012/5

N2 - 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.

AB - 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.

KW - Microstructure-final

KW - Perovskite

KW - Piezoelectric properties

KW - Speaker

KW - Tape casting

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