PYROELECTRIC CERAMIC COMPOSITION, AND INFRARED ELEMENT, AND INFRARED DETECTOR
    1.
    发明申请
    PYROELECTRIC CERAMIC COMPOSITION, AND INFRARED ELEMENT, AND INFRARED DETECTOR 有权
    光电陶瓷组合物,红外元件和红外探测器

    公开(公告)号:US20100044568A1

    公开(公告)日:2010-02-25

    申请号:US12251197

    申请日:2008-10-14

    IPC分类号: G01J5/02 G01J5/10 C04B35/465

    摘要: A pyroelectric ceramic composition contains a compound represented by (Pb1-xCax)(1+a){(Ni1/3Nb2/3)yTi(1-y)}O3 (wherein x, y, and a satisfy 0.20≦x≦0.27, 0.01≦y≦0.06, and 0.001≦a≦0.02, respectively) as a main component and 0.3 to 2.5 mol of Mn per 100 mol of the main component. The amount of segregates containing Ni, Ti, and Mn is 1.0 vol % or less (including 0 vol %) of a fired sinter. A pyroelectric ceramic composition that has an adequately low insulation resistance and a high Curie temperature while achieving satisfactory pyroelectric properties is realized. Since the composition has a high Curie temperature, a thin, small pyroelectric element that withstands a reflow process can be obtained. Since the composition has a low insulation resistance, an infrared detector incorporating a pyroelectric element composed of the composition does not require a load resistance to be provided in parallel to the pyroelectric element and size reduction is possible.

    摘要翻译: 热电陶瓷组合物包含由(Pb1-xCax)(1 + a){(Ni1 / 3Nb2 / 3)yTi(1-y)} O3表示的化合物(其中x,y和a满足0.20≦̸ x≦̸ 0.27 ,0.01≦̸ y≦̸ 0.06和0.001≦̸ a≦̸ 0.02)和0.3〜2.5mol的Mn / 100mol主成分。 Ni,Ti,Mn的析出物的含量为烧结体的1.0体积%以下(包括0体积%)。 实现了具有足够低绝缘电阻和高居里温度同时实现令人满意的热电性能的热电陶瓷组合物。 由于组成具有高的居里温度,所以可以获得耐受回流处理的薄的小型热电元件。 由于组合物具有低的绝缘电阻,所以并入由该组合物构成的热电元件的红外线检测器不需要与热电元件平行设置负载电阻,并且可以减小尺寸。

    Pyroelectric ceramic composition, and infrared element, and infrared detector
    2.
    发明授权
    Pyroelectric ceramic composition, and infrared element, and infrared detector 有权
    热电陶瓷组合物,红外元件和红外检测器

    公开(公告)号:US07897921B2

    公开(公告)日:2011-03-01

    申请号:US12251197

    申请日:2008-10-14

    IPC分类号: G01J5/00

    摘要: A pyroelectric ceramic composition contains a compound represented by (Pb1−xCax)(1+a){(Ni1/3Nb2/3)yTi(1−y)}O3 (wherein x, y, and a satisfy 0.20≦x≦0.27, 0.01≦y≦0.06, and 0.001≦a≦0.02, respectively) as a main component and 0.3 to 2.5 mol of Mn per 100 mol of the main component. The amount of segregates containing Ni, Ti, and Mn is 1.0 vol % or less (including 0 vol %) of a fired sinter. A pyroelectric ceramic composition that has an adequately low insulation resistance and a high Curie temperature while achieving satisfactory pyroelectric properties is realized. Since the composition has a high Curie temperature, a thin, small pyroelectric element that withstands a reflow process can be obtained. Since the composition has a low insulation resistance, an infrared detector incorporating a pyroelectric element composed of the composition does not require a load resistance to be provided in parallel to the pyroelectric element and size reduction is possible.

    摘要翻译: 热电陶瓷组合物含有由(Pb1-xCax)(1 + a){(Ni1 / 3Nb2 / 3)yTi(1-y)} O3表示的化合物(其中x,y和a满足0.20≦̸ x≦̸ 0.27 ,0.01≦̸ y≦̸ 0.06和0.001≦̸ a≦̸ 0.02)和0.3〜2.5mol的Mn / 100mol主成分。 Ni,Ti,Mn的析出物的含量为烧结体的1.0体积%以下(包括0体积%)。 实现了具有足够低绝缘电阻和高居里温度同时实现令人满意的热电性能的热电陶瓷组合物。 由于组成具有高的居里温度,所以可以获得耐受回流处理的薄的小型热电元件。 由于组合物具有低的绝缘电阻,所以并入由该组合物构成的热电元件的红外线检测器不需要与热电元件平行设置负载电阻,并且可以减小尺寸。

    Piezoelectric ceramic composition, buzzer and actuator using the same
    6.
    发明授权
    Piezoelectric ceramic composition, buzzer and actuator using the same 有权
    压电陶瓷组合物,蜂鸣器和使用其的执行器

    公开(公告)号:US06280650B1

    公开(公告)日:2001-08-28

    申请号:US09544850

    申请日:2000-04-06

    IPC分类号: C04B35499

    CPC分类号: H01L41/187 C04B35/491

    摘要: A piezoelectric buzzer formed by using a piezoelectric ceramic having both a higher heat resistance and a higher piezoelectric characteristics than those of a conventional product. The piezoelectric buzzer 10 of the present invention has a metal plate 12. Formed on the metal plate 12 is a piezoelectric ceramic 14. Further, formed on the piezoelectric ceramic 14 is an electrode 16. The piezoelectric composition forming the piezoelectric ceramic is a piezoelectric ceramic composition characterized in that about 0.2 to 2 mol % of the Pb atoms of a lead zirconate titanate (PZT) represented by the composition formula PbA[(TixZr1-x)a(SnyCr1-y)bSbc]O3 has been displaced by La, wherein 0.94≦A≦1.02, 0.46≦x≦0.51, 0.01≦y≦0.5, 0.01≦b≦0.03, 0.01≦c≦0.04,a+b+c=1.

    摘要翻译: 一种压电蜂鸣器,其通过使用具有比常规产品更高的耐热性和更高的压电特性的压电陶瓷形成。 本发明的压电蜂鸣器10具有金属板12.在金属板12上形成压电陶瓷14.此外,形成在压电陶瓷14上的是电极16.形成压电陶瓷的压电组合物是压电陶瓷 其特征在于组成式PbA [(TixZr1-x)a(SnyCr1-y)bSbc] O3表示的锆钛酸铅(PZT)的Pb原子的约0.2〜2摩尔%已被La置换,其中 0.94 <= A <= 1.02,0.46 <= x <= 0.51,0.01 <= y <= 0.5,0.01 <= b <= 0.03,0.01 <= c = 0.04,a + b + c = 1。

    Surface acoustic wave device having polycrystalline piezoelectric ceramic layers
    7.
    发明授权
    Surface acoustic wave device having polycrystalline piezoelectric ceramic layers 有权
    具有多晶压电陶瓷层的表面声波器件

    公开(公告)号:US06208063B1

    公开(公告)日:2001-03-27

    申请号:US09433517

    申请日:1999-11-03

    IPC分类号: H03H925

    CPC分类号: H03H9/02574

    摘要: A surface acoustic wave device includes a piezoelectric substrate, and an interdigital transducer provided on the piezoelectric substrate, wherein the piezoelectric substrate includes at least two piezoelectric ceramic layers made of a polycrystalline material. The at least two piezoelectric ceramic layers are stacked so that electrical characteristics and mechanical characteristics thereof vary in a direction that is substantially perpendicular a surface of the piezoelectric substrate upon which the at least two ceramic piezoelectric layers are stacked.

    摘要翻译: 表面声波装置包括压电基片和设置在压电基片上的叉指换能器,其中压电基片包括由多晶材料制成的至少两个压电陶瓷层。 堆叠至少两个压电陶瓷层,使得其电特性和机械特性在基本上垂直于其上堆积有至少两个陶瓷压电层的压电基板的表面的方向上变化。

    Piezoelectric ceramic composition
    10.
    发明授权
    Piezoelectric ceramic composition 有权
    压电陶瓷组合物

    公开(公告)号:US07585429B2

    公开(公告)日:2009-09-08

    申请号:US12187919

    申请日:2008-08-07

    IPC分类号: H01L41/187

    摘要: A piezoelectric ceramic composition represented by the formula (1-x) (K1-a-bNaaLib)m(Nb1-c-dTacSbd)O3-x(K1/4Na1/4M31/2) M4O3, wherein M3 represents a metal element that is at least one of Yb, Y, In, Nd, Eu, Gd, Dy, Sm, Ho, Er, Tb, and Lu; M4 represents a metal element that is at least one of Ti, Zr, and Sn; and x, a, b, c, d, and m satisfy the inequalities 0.001≦x≦0.1, 0≦a≦0.9, 0≦b≦0.3, 0≦a+b≦0.9, 0≦c≦0.5, 0≦d≦0.1, and 0.7≦m≦1.3. The piezoelectric ceramic composition is not sintering resistant and has desired, sufficient piezoelectric properties as well as a sufficient firing temperature range suitable for mass production. Furthermore, the piezoelectric ceramic composition is effective in preventing insufficient polarization and effective in increasing the yield of products.

    摘要翻译: 由式(1-x)(K1-a-bNaaLib)m(Nb1-c-dTacSbd)O3-x(K1 / 4Na1 / 4M31 / 2)M4O3表示的压电陶瓷组合物,其中,M3表示金属元素, Yb,Y,In,Nd,Eu,Gd,Dy,Sm,Ho,Er,Tb和Lu中的至少一种; M4表示作为Ti,Zr,Sn中的至少一种的金属元素, 并且x,a,b,c,d和m满足不等式0.001 <= x <= 0.1,0 <= a <= 0.9,0 <= b <= 0.3,0 <= a + b <= 0.9, 0 <= c <= 0.5,0 <= d <= 0.1,0.7 <= m <= 1.3。 压电陶瓷组合物不耐烧结并且具有足够的压电性能以及适合于批量生产的足够的烧制温度范围。 此外,压电陶瓷组合物有效地防止不充分的极化并有效提高产品的产率。