Microstructure control of potassium niobate porous ceramics and their sensor properties

Kazuki Maeda; Kenta Yamashita; Ichiro Fujii; Kouichi Nakashima; Tohru S. Suzuki; Yoshihiro Kuroiwa; Satoshi Wada

doi:10.4028/www.scientific.net/KEM.566.241

Microstructure control of potassium niobate porous ceramics and their sensor properties

Kazuki Maeda, Kenta Yamashita, Ichiro Fujii, Kouichi Nakashima, Tohru S. Suzuki, Yoshihiro Kuroiwa, Satoshi Wada

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Porous potassium niobate (KNbO₃, KN) system ceramics were prepared by spark plasma sintering (SPS) method using carbon black (CB, 5 μm). First, the powders of raw materials were mixed in ethanol by ball milling, and then calcined. Obtained KN powders with CB were sintered by SPS in argon atmosphere. Their piezoelectric properties were measured and a relationship between porosity, pore size, and sensor properties was studied. It was found that d₃₃ increased as pore size decreased. Thus, pore size was important for the improvement of value of g₃₃/ρ.

Original language	English
Title of host publication	Electroceramics in Japan XV
Publisher	Trans Tech Publications Ltd
Pages	241-244
Number of pages	4
ISBN (Print)	9783037857618
DOIs	https://doi.org/10.4028/www.scientific.net/KEM.566.241
Publication status	Published - 2013
Externally published	Yes
Event	31st Electronics Division Meeting of the Ceramic Society of Japan - Tokyo, Japan Duration: 2011 Oct 28 → 2011 Oct 29

Publication series

Name	Key Engineering Materials
Volume	566
ISSN (Print)	1013-9826
ISSN (Electronic)	1662-9795

Other

Other	31st Electronics Division Meeting of the Ceramic Society of Japan
Country	Japan
City	Tokyo
Period	11/10/28 → 11/10/29

Keywords

Piezoelectric property
Porous ceramics
Potassuium niobate
Sensor application
Spark plasma sintering

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Access to Document

10.4028/www.scientific.net/KEM.566.241

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Microstructure control of potassium niobate porous ceramics and their sensor properties. / Maeda, Kazuki; Yamashita, Kenta; Fujii, Ichiro; Nakashima, Kouichi; Suzuki, Tohru S.; Kuroiwa, Yoshihiro; Wada, Satoshi.

Electroceramics in Japan XV. Trans Tech Publications Ltd, 2013. p. 241-244 (Key Engineering Materials; Vol. 566).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Maeda, K, Yamashita, K, Fujii, I, Nakashima, K, Suzuki, TS, Kuroiwa, Y & Wada, S 2013, Microstructure control of potassium niobate porous ceramics and their sensor properties. in Electroceramics in Japan XV. Key Engineering Materials, vol. 566, Trans Tech Publications Ltd, pp. 241-244, 31st Electronics Division Meeting of the Ceramic Society of Japan, Tokyo, Japan, 11/10/28. https://doi.org/10.4028/www.scientific.net/KEM.566.241

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abstract = "Porous potassium niobate (KNbO3, KN) system ceramics were prepared by spark plasma sintering (SPS) method using carbon black (CB, 5 μm). First, the powders of raw materials were mixed in ethanol by ball milling, and then calcined. Obtained KN powders with CB were sintered by SPS in argon atmosphere. Their piezoelectric properties were measured and a relationship between porosity, pore size, and sensor properties was studied. It was found that d33 increased as pore size decreased. Thus, pore size was important for the improvement of value of g33/ρ.",

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AU - Maeda, Kazuki

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AU - Kuroiwa, Yoshihiro

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AB - Porous potassium niobate (KNbO3, KN) system ceramics were prepared by spark plasma sintering (SPS) method using carbon black (CB, 5 μm). First, the powders of raw materials were mixed in ethanol by ball milling, and then calcined. Obtained KN powders with CB were sintered by SPS in argon atmosphere. Their piezoelectric properties were measured and a relationship between porosity, pore size, and sensor properties was studied. It was found that d33 increased as pore size decreased. Thus, pore size was important for the improvement of value of g33/ρ.

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