摘要:
The piezoelectric ceramic includes oxide represented by (Pb1−aAa)s[Zn1/3Nb2/3)w(Mn1/3B2/3)xTiyZrz]O3. A represents at least one element in the group comprising Ca, Sr and Ba. B represents at least one element in the group comprising Nb, Sb and Ta and a, s, w, x, y and z are within a range of 0≦a≦0.1, 0.9≦s
摘要翻译:压电陶瓷包括由(Pb1-aAa)s [Zn1 / 3Nb2 / 3)w(Mn1 / 3B2 / 3)xTiyZrz] O3表示的氧化物。 A表示包含Ca,Sr和Ba的组中的至少一种元素。 B表示包含Nb,Sb和Ta的组中的至少一种元素,a,s,w,x,y和z在0 <= a <= 0.1,0.9 <= s <1.0,0.2 < w / x <= 3.0,0.1 <= y <= 0.5和0.2 <= z <= 0.6,w + x + y + z = 1。 因此,可以容易且合理地获得高机械强度,并且在不研磨煅烧粉末或热压机的情况下也能获得优异的压电性能。
摘要:
Provided is a piezoelectric ceramic composition capable of being sintered at low temperatures and in a low-oxygen reductive atmosphere and capable of attaining a sufficient displacement even at high voltages of 1 kV/mm or more. The piezoelectric ceramic composition includes: a composite oxide, as a main constituent thereof, represented by the following composition formula; Cu and/or Ag, each as a first additive, Cu being included in a content α, in terms of Cu2O, falling within a range 0
摘要翻译:提供一种压电陶瓷组合物,其能够在低温和低氧还原气氛中烧结,并且即使在1kV / mm以上的高电压下也能够获得足够的位移。 压电陶瓷组合物包括:作为其主要成分的复合氧化物,由以下组成式表示; Cu和/或Ag,每个作为第一添加剂,Cu以包含在Cu 2 O中的含量α中包含在0 <α≤0.5质量%的范围内,并且Ag被包含在含量β中 Ag2O,相对于主要成分为0 <β≤0.4质量%范围内; 其中:组成式:Pba [(Zn1 / 3Nb2 / 3)xTiyZrz] O3,其中0.96 <= a <= 1.03,0.005 <= x <0.05,0.42≤y≤0.53,0.45≤z≤0.56, x + y + z = 1。
摘要:
Provided is a piezoelectric ceramic composition capable of being sintered at low temperatures and in a low-oxygen reductive atmosphere and capable of attaining a sufficient displacement even at high voltages of 1 kV/mm or more. The piezoelectric ceramic composition includes: a composite oxide, as a main constituent thereof, represented by the following composition formula; Cu and/or Ag, each as a first additive, Cu being included in a content α, in terms of Cu2O, falling within a range 0
摘要翻译:提供一种压电陶瓷组合物,其能够在低温和低氧还原气氛中烧结,并且即使在1kV / mm以上的高电压下也能够获得足够的位移。 压电陶瓷组合物包括:作为其主要成分的复合氧化物,由以下组成式表示; Cu和/或Ag,各自作为第一添加剂,Cu以包含在Cu 2 O 2中的含量α中,在0 <α≤0.5质量%的范围内,Ag为 相对于主要成分,包含在相对于主要成分的0 <β≤0.4质量%范围内的Ag 2 O 3的含量β中。 其中:组成式:Pb> [SUB x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 其中0.96 <= a <= 1.03,0.005 <= x <0.05,0.42 <= y <= 0.53, 0.45 <= z <= 0.56,x + y + z = 1。
摘要:
A piezoelectric ceramic composition has as a chief ingredient a composite oxide that has Pb, Ti and Zr as constituent elements. It contains as a first accessory ingredient at least one element selected from the group consisting of Mn, Co, Cr, Fe and Ni in an amount of 0.2 mass % or less excluding 0 mass % in terms of an oxide. As the first accessory ingredient, at least one species selected from the ingredients represented by CuOx, wherein x≧0, can be adopted. In this case, the content of the first accessory ingredient is 3.0 mass % or less excluding 0 mass %. The piezoelectric ceramic composition is fired under reducing and firing conditions. The reducing and firing conditions include a firing temperature in the range of 800° C. to 1200° C. and an oxygen partial pressure in the range of 1×10−10 to 1×10−6 atm., for example.
摘要:
An electrophotographic photoconductor having a photosensitive layer and a crosslinked resin surface layer over a support, wherein shapes of concaves and convexes in a surface of the electrophotographic photoconductor are measured by a surface roughness/profile measuring device to obtain one-dimensional data arrays, the arrays are subjected to multiresolution analysis (MRA-1) through wavelet transformation to be separated into six frequency components including HHH, HHL, HMH, HML, HLH and HLL to obtain one-dimensional data arrays, the arrays of the HHL are thinned out to be reduced 1/10 to 1/100, thereby producing one-dimensional data arrays, which are then subjected to multiresolution analysis (MRA-2) through wavelet transformation to be separated into six frequency components including LHH, LHL, LMH, LML, LLH and LLL to thereby obtain 12 frequency components in total; and a center-line average roughness (WRa) of the 12 frequency components satisfies relationship (i) below. 1−597×WRa(HML)+238×WRa(HLH)−95×WRa(LHL)+84×WRa(LMH)−79×WRa(LML)+55×WRa(LLH)−17×WRa(LLL)>0 (i)
摘要:
A piezoelectric ceramic composition includes: a composite oxide, as a main component thereof, represented by the composition formula, Pba[(Zn1/3Nb2/3)xTiyZrz]O3, wherein a, x, y and z satisfy the following relations, 0.96≦a≦1.03, 0.005≦x≦0.047, 0.42≦y≦0.53, 0.45≦z≦0.56, and x+y+z=1; and the following additives in the indicated percentages by mass in relation to the main component, Cu as a first additive, in a content α, in terms of Cu2O, falling within a range 0
摘要翻译:压电陶瓷组合物包括:作为其主要成分的复合氧化物,由组成式表示,<?in-line-formula description =“In-line formula”end =“lead”→> Pba [(Zn1 / 3Nb2 其中a,x,y和z满足以下关系:<?in-line-formula description =“in-line-formula description =”In-line formula“end =”tail“? =“在线公式”end =“lead”?> 0.96 <= a <= 1.03,0.005 <= x <= 0.047,0.42 <= y <= 0.53,0.45 <= z <= 0.56,x + y + z = 1; <?in-line-formula description =“In-line Formulas”end =“tail”?>和相对于主要成分指出的质量百分比中的以下添加剂,Cu是第一种添加剂, 含量α,以Cu 2 O计,在0 <α<0.5%的范围内; Dy,Nd,Eu,Gd,Tb,Ho和Er中的至少一种作为第二添加剂,以氧化物计,含量β在0 <β≤0.3%的范围内; 和作为第三添加剂的Ta,Nb,W和Sb中的至少一种,以含量γ表示,以氧化物计,在0≤γ≤0.6%的范围内。
摘要:
An electrophotographic photoreceptor including a cylindrical substrate including a photosensitive layer on an outer circumferential surface thereof and a flange adhesively fixed to at least one end of the cylindrical substrate. The flange has a joint to which a separation jig is applied to apply a tensility in a direction of separating the flange from the cylindrical substrate. A method of recycling the electrophotographic photoreceptor fills an elastic body with a fluid to inflate and contact the elastic body at the outer circumferential surface of the electrophotographic photoreceptor upon application of pressure to grasp the electrophotographic photoreceptor in the jig, and the jig is applied to the joint to pull the flange in a direction of separating the flange from the cylindrical substrate.
摘要:
An image pick-up apparatus is disclosed which includes a target portion having a photoconductive film on a substrate and a target electrode and reads video information converted into an electric signal in the photoconductive film by an electron beam. An insulating region is provided for the target portion such that carrier generated in an ineffective scanned region (a target region corresponding to an area not scanned by the electron beam) does not appear on a surface of the target portion.
摘要:
A photoconductive device having a transparent substrate, a transparent conductive film, a photoconductive film and a layer of an insulator provided on at least part of the substrate and of high thermal conductivity, and a method of operating the photoconductive device. Thus, especially, the temperature of a photoconductive film of an imaging device typical of an image pick-up tube or the photoconductive device which may be a one- or a two-dimensional image sensor or a photocell can be controlled precisely and efficiently.
摘要:
An inside rearview mirror assembly for use in the passenger compartment of a motor vehicle includes a base, a stay detachably mounted on the base, and a mirror unit supported on the stay. The base and the stay have respective joint surfaces intimately contacting each other, partly spherical interfitting projections and dimples formed respectively on front ends of the joint surfaces, and non-contact surfaces disposed forwardly of the projections and dimples and providing a gap between the stay and the base. When the mirror unit is subjected to an impact, the stay is angularly moved forwardly about the projections and dimples, and detached from the base.