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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.119  No.1385 (January) (2011)  >  pp.60-64

Journal of the Ceramic Society of Japan
<<Previous article Vol.119  No.1385 (January) (2011)   pp.60 - 64 Next article>>

Textured lead titanate ceramics fabricated by slip casting under a high magnetic field

Yasunari MIWA1), Shinichiro KAWADA1), Masahiko KIMURA1), Takehiro KONOIKE1), Hiroshi TAKAGI1), Tohru S. SUZUKI2), Tetsuo UCHIKOSHI2) and Yoshio SAKKA2)
1) Murata Manufacturing Co., Ltd.
2) National Institute of Material Science


  Oriented PbTiO3 ceramics were obtained by slip casting under a high magnetic field, and the orientation factor was 90%. Such highly oriented perovskite ceramics by slip casting under a high magnetic field have never been reported as far as we know. It was thought that dispersibility and crystallinity of the powder were important for orientation by slip casting under a high magnetic field. In this study, we controlled the dispersibility and crystallinity of powder by calcination temperature. As a result, the sample obtained from the powder calcined at 1100°C was oriented, but the one obtained from the powder calcined at 900°C was not. The powder calcined at 900°C is more aggregated than that at 1100°C and the crystallinity of the powder calcined at 1100°C is higher than that of the powder calcined at 900°C. It became clear that highly oriented PbTiO3 ceramics can be fabricated from the powder with high dispersibility and high crystallinity by slip casting under a high magnetic field.


Keyword:
Orientation, PbTiO3, Magnetic field, Slip casting, Lotgering method, Crystallinity, Dispersibility, Perovskite structure

Received: September 27, 2010
Accepted: October 22, 2010 , Published online: January 01, 2011
Copyright (c) 2011 The Ceramic Society of Japan

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