Title:
CERAMIC COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2014/157023
Kind Code:
A1
Abstract:
[Problem] To provide a novel ceramic composition which exhibits a high relative permittivity. [Solution] A ceramic composition which is composed of unit lattices having at least two crystal structures selected from among monocline, tetragon, orthorhombus and rhombohedron, characterized in that when the crystal structures are represented by Glazer's notation for symmetry, namely xn1yn2zn3, n1, n2 and n3 are either at least one selected from between + and -, or at least two selected from among 0, + and -. Thus, a novel ceramic composition which exhibits a high relative permittivity can be obtained.
Inventors:
NATSUI HIDESADA (JP)
MASAI TAKU (JP)
AMAN SANSHIRO (JP)
MASAI TAKU (JP)
AMAN SANSHIRO (JP)
Application Number:
PCT/JP2014/057958
Publication Date:
October 02, 2014
Filing Date:
March 24, 2014
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
C04B35/00; C01G49/00; H01B3/12; H01L41/187; H01L41/43
Other References:
ITOH,NAOYUKI ET AL.: "Fabrication and Properties of BiFeO3-SrTiO3 Ceramics by Solid State Reaction", TRANSACTIONS OF THE MATERIALS RESEARCH SOCIETY OF JAPAN, vol. 32, no. 1, March 2007 (2007-03-01), pages 47 - 50
ROUT,DIBYARANJAN ET AL.: "Dielectric and Raman scattering studies of phase transitions in the (100-x)Na0.5Bi0.5TiO3-xSrTiO3 system", JOURNAL OF APPLIED PHYSICS, vol. 108, 19 October 2010 (2010-10-19), pages 084102-1 - 084102-7
RANJAN,RAJEEV ET AL.: "Degenerate rhombohedral and orthorhombic states in Ca-substituted Na0.5Bi0.5TiO3", APPLIED PHYSICS LETTERS, vol. 95, 31 July 2009 (2009-07-31), pages 042904-1 - 042904-3
ROUT,DIBYARANJAN ET AL.: "Dielectric and Raman scattering studies of phase transitions in the (100-x)Na0.5Bi0.5TiO3-xSrTiO3 system", JOURNAL OF APPLIED PHYSICS, vol. 108, 19 October 2010 (2010-10-19), pages 084102-1 - 084102-7
RANJAN,RAJEEV ET AL.: "Degenerate rhombohedral and orthorhombic states in Ca-substituted Na0.5Bi0.5TiO3", APPLIED PHYSICS LETTERS, vol. 95, 31 July 2009 (2009-07-31), pages 042904-1 - 042904-3
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