Title:
PIEZOELECTRIC CERAMIC, METHOD FOR PRODUCING SAME, AND PIEZOELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/128647
Kind Code:
A1
Abstract:
Disclosed is a piezoelectric ceramic which is characterized by containing [K1-xNax]1-yLiy[Nb1-z-wTazSbw]O3 (wherein x, y, z and w each represents a molar ratio and satisfies 0 ≤ x ≤ 1, 0 ≤ y ≤ 1, 0 ≤ z ≤ 1, 0 ≤ w ≤ 1) as the main phase and K3Nb3O6Si2O7 as a sub-phase, while containing, as an additive, a Cu compound in an amount of 0.02-5.0 mol in terms of CuO relative to 100 mol of the main phase.
Inventors:
HATANO KEIICHI (JP)
DOSHIDA YUTAKA (JP)
DOSHIDA YUTAKA (JP)
Application Number:
PCT/JP2010/057651
Publication Date:
November 11, 2010
Filing Date:
April 30, 2010
Export Citation:
Assignee:
TAIYO YUDEN KK (JP)
HATANO KEIICHI (JP)
DOSHIDA YUTAKA (JP)
HATANO KEIICHI (JP)
DOSHIDA YUTAKA (JP)
International Classes:
C04B35/00; H01L41/083; H01L41/09; H01L41/187; H01L41/43; H03H3/02; H03H3/08; H03H9/17; H03H9/25
Domestic Patent References:
| WO2007080684A1 | 2007-07-19 |
Foreign References:
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Other References:
JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 45, no. 1, 2006, pages L30 - L32
JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 46, no. 4, 2007, pages L97 - L98
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JAPANESE JOURNAL OF THE AMERICAN CERAMIC SOCIETY, vol. 88, no. 5, 2005, pages 1190 - 1196
See also references of EP 2431343A4
JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 46, no. 4, 2007, pages L97 - L98
JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 97, 2005, pages 114105
JAPANESE JOURNAL OF THE AMERICAN CERAMIC SOCIETY, vol. 88, no. 5, 2005, pages 1190 - 1196
See also references of EP 2431343A4
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