Abstract:
Flexoelectric device (1) which comprises an electromechanically active layer (2) made of a semiconductor material inserted between two metallic electrodes (3, 4), which is capable of generating a voltage (V) between the two electrodes (3, 4) when it is bent.
Abstract:
The present invention provides a lead-free piezoelectric material having a high piezoelectric constant over a wide operating temperature region. Therefore, the present invention relates to a piezoelectric material including a perovskite-type metal oxide represented by general formula (1) below as a main component, wherein the average valence of Sn contained in the general formula (1) lies between 2 and 4. General Formula (1) (Ba v Ca w Sn x Ti y Zr z )O 3 (where 0.620 ≤ v ≤ 0.970, 0.010 ≤ w ≤ 0.200, 0.030 ≤ x ≤ 0.230, 0.865 ≤ y ≤ 0.990, 0 ≤ z ≤ 0.085, and 1.986 ≤ v + w + x + y + z ≤ 2.100)
Abstract translation:本发明提供一种在宽工作温度范围内具有高压电常数的无铅压电材料。 因此,本发明涉及包含以下通式(1)表示的钙钛矿型金属氧化物作为主要成分的压电材料,其中通式(1)中所含的Sn的平均化合价位于2和4之间。 通式(1)(BavCawSnxTiyZrz)O3(其中0.620≤v≤0.970,0.010≤w≤0.200,0.030≤x≤0.230,0.865≤y≤0.990,0≤z≤0.085和1.986≤v+ w + x + y +z≤2.100)
Abstract:
(M 1 O x ) - (M 2 O y ) - SiO 2 wherein Mi is one or more metals and/or metalloids, M 2 is one or more metals and/or metalloids, x is a value equal to the valence of M 1 , and y is a value equal to the valence of M 2 . The piezoelectric glass ceramic has a total alkali metal concentration of less than about 1000 parts per million by weight (ppmw). A process of preparing a piezoelectric glass ceramic and a piezoelectric glass ceramic body prepared therefrom.
Abstract:
The present invention provides a piezoelectric element that includes a piezoelectric material having first and second surfaces; a common electrode disposed on the first surface; and a plurality of drive phase electrodes, a detection phase electrode, and a non-drive phase electrode disposed on the second surface, the piezoelectric material being sandwiched between the common electrode and the electrodes on the second surface. An absolute value d(1) of a piezoelectric constant of the piezoelectric material (1) in portions sandwiched between the drive phase electrodes and the common electrode, an absolute value d(2) of a piezoelectric constant of the piezoelectric material (2) in a portion sandwiched between the detection phase electrode and the common electrode, and an absolute value d(3) of the piezoelectric material (3) in a portion sandwiched between the non-drive phase electrode and the common electrode satisfy d(2)
Abstract:
A vibration wave driving device based on barium calcium zirconate titanate material that can be driven with high reliability over a wide operating temperature range includes a piezoelectric element (P), and a temperature compensation capacitor (C) in parallel, such that the relations 20°C ≤Tε(Cmax) - Tε(Pmax) ≤75°C and 0.50 ≤ ε (Cc)/ ε(Cmax) ≤ 0.80 involving the relative dielectric constants ε and temperatures at their maximum values Tε are satisfied.
Abstract:
The present invention provides a piezoelectric material not containing lead and potassium, showing satisfactory insulation and piezoelectricity, and having a high Curie temperature. The invention relates to a piezoelectric material includes a main component containing a perovskite-type metal oxide represented by Formula (1): (Na x Ba 1-y )(Nb y Ti 1-y )O 3 (wherein, 0.80 ≤ x ≤ 0.94 and 0.83 ≤ y ≤ 0.94), and an additive component containing at least one element selected from Mn and Ni, wherein the content of the Ni is 0 mol or more and 0.05 mol or less based on 1 mol of the perovskite-type metal oxide, and the content of the Mn is 0 mol or more and 0.005 mol or less based on 1 mol of the perovskite-type metal oxide.
Abstract translation:本发明提供一种不含铅和钾的压电材料,具有令人满意的绝缘和压电性,并具有很高的居里温度。 本发明涉及一种压电材料,其包含含有式(1)表示的钙钛矿型金属氧化物的主要成分:(NaxBa1-y)(NbyTi1-y)O3(其中,0.80 <= x <= 0.94和0.83 < y <0.94)和含有选自Mn和Ni中的至少一种元素的添加成分,其中Ni的含量相对于1摩尔钙钛矿型金属氧化物为0摩尔以上且0.05摩尔以下,以及 Mn的含量相对于1摩尔钙钛矿型金属氧化物为0摩尔以上且0.005摩尔以下。
Abstract:
Provided is a dust removing device that can be designed and controlled appropriately and has high dust removal performance even at low temperature, and an imaging device using the dust removing device. In a dust removing device to be set on a base, including a piezoelectric element formed of a piezoelectric material and a pair of opposing electrodes, a vibration member, and a fixation member containing at least a high molecular compound component, a phase transition temperature T from a first ferroelectric crystal phase to a second ferroelectric crystal phase of the piezoelectric material is set to -60°C≤T≤-5°C, and whereby, the dust removing device can be designed and controlled appropriately and high dust removal performance can be obtained even at low temperature.
Abstract translation:本发明提供一种能够适当设计和控制并且即使在低温下也具有高除尘性能的除尘装置,以及使用除尘装置的成像装置。 在设置在基座上的除尘装置中,包括由压电材料形成的压电元件和一对相对电极,振动部件和至少含有高分子化合物成分的固定部件,相变温度T 从压电材料的第一铁电晶体相到第二铁电晶体相设定为-60℃<= T <= -5℃,由此可以适当地设计和控制除尘装置,并且高度除尘 即使在低温下也能获得性能。
Abstract:
Provided are a barium titanate-based piezoelectric ceramics having satisfactory piezoelectric performance and a satisfactory mechanical quality factor (Qm), and a piezoelectric element using the same. Specifically provided are a piezoelectric ceramics, including: crystal particles; and a grain boundary between the crystal particles, in which the crystal particles each include barium titanate having a perovskite-type structure and manganese at 0.04% by mass or more and 0.20% by mass or less in terms of a metal with respect to the barium titanate, and the grain boundary includes at least one compound selected from the group consisting of Ba4Ti12O27 and Ba6Ti17O40, and a piezoelectric element using the same.
Abstract translation:提供一种具有令人满意的压电性能和令人满意的机械品质因数(Qm)的钛酸钡基压电陶瓷,以及使用它的压电元件。 具体提供的是压电陶瓷,包括:晶体颗粒; 晶体粒子各自包含钛酸钙,钛酸钙,钛,钛,钛,钛,钛,钛,钛,钛, 钛酸盐,并且晶界包括至少一种选自Ba 4 Ti 12 O 27和Ba 6 Ti 17 O 40的化合物和使用其的压电元件。