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公开(公告)号:US20080272329A1
公开(公告)日:2008-11-06
申请号:US11884930
申请日:2006-02-22
申请人: Atsushi Ito , Yoshiya Matsuno , Haruhide Shikano , Takahiko Ido , Takuo Matsuyama , Shigeo Fukuyasu , Masakazu Ueno
发明人: Atsushi Ito , Yoshiya Matsuno , Haruhide Shikano , Takahiko Ido , Takuo Matsuyama , Shigeo Fukuyasu , Masakazu Ueno
IPC分类号: C04B35/462
CPC分类号: H01L41/187 , C04B35/491 , C04B35/6261 , C04B2235/3213 , C04B2235/3251 , C04B2235/3284 , C04B2235/5445
摘要: The present invention provides a piezoelectric ceramic composition, for producing piezoelectric elements exhibiting high piezoelectric strain constant d33 and high Curie temperature Tc, which composition includes a perovskite PbZrO3 (a), a perovskite PbTiO3 (b), SrO (c), Nb2O5 (d) and ZnO (e), and relative amounts of the components (a), (b), (c) (d) and (e) satisfy the general formula: Pb(ZraTi1-a)O3+bSrO+cNbO2.5+dZnO wherein 0.51≦a≦0.54; 1.1×10−2≦b≦6.0×10−2; 0.9×10−2≦c≦4.25×10−2; 0.1×10−2≦d≦1.25×10−2; and 2.9≦c/d≦15.0.
摘要翻译: 本发明提供一种压电陶瓷组合物,其用于制造表现出高压电应变常数d 33和高居里温度Tc的压电元件,该组成包括钙钛矿PbZrO 3(a) ,钙钛矿型PbTiO 3(b),SrO(c),Nb 2 O 5(d)和ZnO(e),以及相对 组分(a),(b),(c)(d)和(e)的量满足通式:<?in-line-formula description =“In-line Formulas”end =“lead”?> Pb (Zr a a 1 a a-a)O 3 + bSrO + cNbO 2.5 + dZnO <βin-line -formulae description =“In-line Formulas”end =“tail”?>其中0.51 <= a <= 0.54; 1.1×10 -2 <= b <= 6.0×10 -2; 0.9×10 -2≤= c <= 4.25×10 -2; 0.1×10 -2 <= d <= 1.25×10 -2; 和2.9 <= c / d <= 15.0。
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公开(公告)号:US20090033179A1
公开(公告)日:2009-02-05
申请号:US11817570
申请日:2006-02-24
申请人: Atsushi Ito , Yoshiya Matsuno , Takahiko Ido , Haruhide Shikano , Shigeo Fukuyasu , Takuo Matsuyama
发明人: Atsushi Ito , Yoshiya Matsuno , Takahiko Ido , Haruhide Shikano , Shigeo Fukuyasu , Takuo Matsuyama
IPC分类号: H01L41/083
CPC分类号: C04B35/491 , B32B2311/08 , C04B35/6261 , C04B35/62625 , C04B35/6263 , C04B2235/3213 , C04B2235/3251 , C04B2235/3284 , C04B2235/5436 , C04B2235/5445 , C04B2235/6587 , C04B2237/346 , C04B2237/348 , C04B2237/408 , H01L41/083 , H01L41/1876
摘要: A multilayer piezoelectric element 20 includes a plurality of piezoelectric layers 11 and a plurality of inner electrode layers 12 alternately stacked, a first outer electrode 18 that electrically couples together every other inner electrode layers 12 in the lamination direction, and a second outer electrode 19 that electrically couples together the remaining inner electrode layers 12. The piezoelectric layers 11 are obtained by molding and firing a mixture containing a Pb component, a Zr component, a Ti component, a Sr component, a Nb component, and a Zn component. When the piezoelectric layers 11 are each represented by general formula Pb(ZraTi1-a)O3+bSrO+cNbO2.5+dZnO, the relative amounts of the individual components, for example, satisfy the relationships a=0.51, b=2.0×10−2, c=1.50×10−2, d=0.5×10−2, and c/d=3.0.
摘要翻译: 多层压电元件20包括交替层叠的多个压电体层11和多个内部电极层12,在层叠方向上将每隔一个内部电极层12电耦合的第一外部电极18和第二外部电极19, 将剩余的内部电极层12电耦合在一起。压电层11通过模制和烧制含有Pb组分,Zr组分,Ti组分,Sr组分,Nb组分和Zn组分的混合物而获得。 当压电层11各自由通式Pb(ZraTi1-a)O3 + bSrO + cNbO2.5 + dZnO表示时,各成分的相对量例如满足关系a = 0.51,b = 2.0×10 -3, 2,c = 1.50×10 -2,d = 0.5×10 -2,c / d = 3.0。
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公开(公告)号:US20080309203A1
公开(公告)日:2008-12-18
申请号:US11817684
申请日:2006-02-24
申请人: Atsushi Ito , Yoshiya Matsuno , Takahiko Ido , Haruhide Shikano , Shigeo Fukuyasu , Takuo Matsuyama
发明人: Atsushi Ito , Yoshiya Matsuno , Takahiko Ido , Haruhide Shikano , Shigeo Fukuyasu , Takuo Matsuyama
IPC分类号: H01L41/09
CPC分类号: H01L41/187 , C04B35/491 , C04B2235/3213 , C04B2235/3251 , C04B2235/3284 , C04B2235/80 , H01L41/083
摘要: A piezoelectric element includes an electrode disposed on at least one of the front and back surfaces of a piezoelectric material prepared by molding a mixture containing a Pb component, a Zr component, a Ti component, a Sr component, a Nb component, and a Zn component and then firing the molded product. When the piezoelectric material is represented by the general formula Pb(ZraTi1-a)O3+bSrO+cNbO2.5+dZnO, the relative amounts of the respective components, for example, satisfy the relationships, a=0.51, b=2.0×10−2, c=1.50×10−2, d=0.5×10−2, and c/d=3.0.
摘要翻译: 压电元件包括设置在通过模制含有Pb组分,Zr组分,Ti组分,Sr组分,Nb组分和Zn的混合物制备的压电材料的前后表面中的至少一个上的电极 然后焙烧成型产品。 当压电材料由通式Pb(ZraTi1-a)O3 + bSrO + cNbO2.5 + dZnO表示时,各成分的相对量例如满足关系式a = 0.51,b = 2.0×10- 2,c = 1.50×10 -2,d = 0.5×10 -2,c / d = 3.0。
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