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:
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:
A main component has a general formula of {(1−x)(K1-a-bNaaLib)m(Nb1-c-dTacSbd)O3−x(M10.5Bi0.5)nM2O3} (wherein M1 is Ca, Sr or Ba, M2 is Ti, Zr or Sn, 0.005≦x≦0.5, 0≦a≦0.9, 0≦b≦0.3, 0≦a+b≦0.9, 0≦c≦0.5, 0≦d≦0.1, 0.9≦m≦1.1, and 0.9≦n≦1.1). At least one specific element selected from the group consisting of In, Sc, Y, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb and Lu is contained at as in sample numbers 46 to 48, 0.1 to 10 mol in total per 100 mols of the main component (preferably, 1.5 to 10 mol). This provides a piezoelectric ceramic composition and a piezoelectric ceramic electronic component that can have a desired high piezoelectric d constant in a consistent and highly efficient manner in both a very low electric field and a high electric field.
摘要:
A main component has a general formula of {(1−x)(K1-a-bNaaLib)m(Nb1-c-dTacSbd)O3-x(M10.5Bi0.5)nM2O3} (wherein M1 is Ca, Sr or Ba, M2 is Ti, Zr or Sn, 0.005≦x≦0.5, 0≦a≦0.9, 0≦b≦0.3, 0≦a+b≦0.9, 0≦c≦0.5, 0≦d≦0.1, 0.9≦m≦1.1, and 0.9≦n≦1.1). At least one specific element selected from the group consisting of In, Sc, Y, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb and Lu is contained at as in sample numbers 46 to 48, 0.1 to 10 mol in total per 100 mols of the main component (preferably, 1.5 to 10 mol). This provides a piezoelectric ceramic composition and a piezoelectric ceramic electronic component that can have a desired high piezoelectric d constant in a consistent and highly efficient manner in both a very low electric field and a high electric field.
摘要翻译:主要组分具有通式{(1-x)(K 1-a b a b a b a b a b b) (Nb 1 -c a)C 3 O 3-x(M 1) 0.5其中M 1为Ca,Sr或Ba,M 2为Ti,Zr或Sn ,0.005 <= x <= 0.5,0 <= a <= 0.9,0 <= b <= 0.3,0 <= a + b <= 0.9,0 <= c <= 0.5,0 <= d <= 0.1 ,0.9 <= m <= 1.1,0.9 <= n <= 1.1)。 如样品号46〜48,0.1〜10中所含有选自In,Sc,Y,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Yb和Lu中的至少一种特定元素 相对于主成分(优选为1.5〜10摩尔)优选为100摩尔。 这提供了一种压电陶瓷组合物和压电陶瓷电子部件,其可以在非常低的电场和高电场中以一致和高效的方式具有期望的高压电d常数。
摘要:
A main component has a general formula of {(1−x)(K1-a-bNaaLib)m(Nb1-c-dTacSbd)O3−x(M10.5Bi0.5)nM2O3} (wherein M1 is Ca, Sr or Ba, M2 is Ti, Zr or Sn, 0.005≦x≦0.5, 0≦a≦0.9, 0≦b≦0.3, 0≦a+b≦0.9, 0≦c≦0.5, 0≦d≦0.1, 0.9≦m≦1.1, and 0.9≦n≦1.1). At least one specific element selected from the group consisting of In, Sc, Y, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb and Lu is contained at as in sample numbers 46 to 48, 0.1 to 10 mol in total per 100 mols of the main component (preferably, 1.5 to 10 mol). This provides a piezoelectric ceramic composition and a piezoelectric ceramic electronic component that can have a desired high piezoelectric d constant in a consistent and highly efficient manner in both a very low electric field and a high electric field.
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。
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:
A main component has a general formula of {(1−x)(K1−a−bNaaLib)m(Nb1−c−dTacSbd)O3−x(M10.5Bi0.5)nM2O3} (wherein M1 is Ca, Sr or Ba, M2 is Ti, Zr or Sn, 0.005≦x≦0.5, 0≦a≦0.9, 0≦b≦0.3, 0≦a+b≦0.9, 0≦c≦0.5, 0≦d≦0.1, 0.9≦m≦1.1, and 0.9≦n≦1.1). At least one specific element selected from the group consisting of In, Sc, Y, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb and Lu is contained at as in sample numbers 46 to 48, 0.1 to 10 mol in total per 100 mols of the main component (preferably, 1.5 to 10 mol). This provides a piezoelectric ceramic composition and a piezoelectric ceramic electronic component that can have a desired high piezoelectric d constant in a consistent and highly efficient manner in both a very low electric field and a high electric field.
摘要:
A piezoelectric ceramic composition includes a primary component represented by the formula (1-x)(K1-a-bNaaLib)m(Nb1-c-dTacSbd)O3-xM1nM2O3, and 0.1 to 10 moles (preferably 1.5 to 10 moles) of at least one specific element selected from the group consisting of In, Sc, Y, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, and Lu with respect to 100 moles of the primary component, wherein M1 is Ca, Sr, or Ba M2 is Ti, Zr, or Sn; and x, a, b, c, d, m, and n satisfy 0.005≦x≦0.1, 0≦a≦0.9, 0≦b≦0.3, 0≦a+b≦0.9, 0≦c≦0.5, 0≦d≦0.1, 0.9≦m≦1.1, and 0.9≦n≦1.1. Preferably, Mn, Ni, Fe, Zn, Cu, or Mg is further added. As a result, at both a very low and a high electric field, a high piezoelectric d constant can be stably obtained with a high efficiency.
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。