Piezoelectric Ceramic Composition
    1.
    发明申请
    Piezoelectric Ceramic Composition 审中-公开
    压电陶瓷组合物

    公开(公告)号:US20080272329A1

    公开(公告)日:2008-11-06

    申请号:US11884930

    申请日:2006-02-22

    IPC分类号: C04B35/462

    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。

    Piezoelectric Element
    3.
    发明申请
    Piezoelectric Element 审中-公开
    压电元件

    公开(公告)号:US20080309203A1

    公开(公告)日:2008-12-18

    申请号:US11817684

    申请日:2006-02-24

    IPC分类号: H01L41/09

    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。

    HONEYCOMB STRUCTURE
    8.
    发明申请
    HONEYCOMB STRUCTURE 审中-公开
    蜂窝结构

    公开(公告)号:US20090291830A1

    公开(公告)日:2009-11-26

    申请号:US12507067

    申请日:2009-07-22

    IPC分类号: B01J29/06 B01J29/08 B01J29/14

    摘要: A honeycomb structure includes a center area, an outer peripheral area, and at least one honeycomb unit having a longitudinal direction. The center area has a smaller similarity shape in relation to a peripheral shape of the honeycomb structure in a cross section perpendicular to the longitudinal direction. The smaller similarity shape is defined by including a center of the honeycomb structure and substantially a half of a length from the center to the peripheral shape of the honeycomb structure. The outer peripheral area is located outside the smaller similarity shape. An aperture ratio of the honeycomb structure is from approximately 50% to approximately 65% in the cross section of the honeycomb structure. The aperture ratio includes a first aperture ratio in the outer peripheral area and a second aperture ratio in the center area. The first aperture ratio is larger than the second aperture ratio.

    摘要翻译: 蜂窝结构体包括中心区域,外周区域和至少一个具有纵向方向的蜂窝单元。 在垂直于纵向方向的截面中,中心区域相对于蜂窝结构体的周边形状具有较小的相似形状。 通过包括蜂窝结构体的中心和从蜂窝结构体的中心到周边形状的大致一半的长度来定义较小的相似性形状。 外围区域位于较小的相似形状之外。 在蜂窝结构体的截面中,蜂窝结构体的开口率为约50%〜65%。 开口率包括外周区域中的第一开口率和中心区域中的第二开口率。 第一开口率大于第二开口率。