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 proceedingConference contribution

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 languageEnglish
Title of host publicationElectroceramics in Japan XV
Pages241-244
Number of pages4
DOIs
Publication statusPublished - 2013 Sep 11
Event31st Electronics Division Meeting of the Ceramic Society of Japan - Tokyo, Japan
Duration: 2011 Oct 282011 Oct 29

Publication series

NameKey Engineering Materials
Volume566
ISSN (Print)1013-9826

Other

Other31st Electronics Division Meeting of the Ceramic Society of Japan
CountryJapan
CityTokyo
Period11/10/2811/10/29

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Keywords

  • Piezoelectric property
  • Porous ceramics
  • Potassuium niobate
  • Sensor application
  • Spark plasma sintering

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Maeda, K., Yamashita, K., Fujii, I., Nakashima, K., Suzuki, T. S., Kuroiwa, Y., & Wada, S. (2013). Microstructure control of potassium niobate porous ceramics and their sensor properties. In Electroceramics in Japan XV (pp. 241-244). (Key Engineering Materials; Vol. 566). https://doi.org/10.4028/www.scientific.net/KEM.566.241