Proof test for ceramic parts
    1.
    发明授权
    Proof test for ceramic parts 失效
    陶瓷零件验证测试

    公开(公告)号:US5647667A

    公开(公告)日:1997-07-15

    申请号:US479079

    申请日:1995-06-06

    CPC分类号: G01N25/72 G01N3/60 G01N33/388

    摘要: For testing structural ceramic parts under overload conditions, a previously calculated temperature distribution is generated on the part by thermal radiation, this temperature distribution inducing the desired test stress or overload. The temperature distribution is measured with topically and temporally resolving temperature sensors, is compared to a desired or calculated temperature distribution, and is regulated by varying the duration and/or location of the radiation influence until the desired temperature distribution has been produced.

    摘要翻译: 为了在过载条件下测试结构陶瓷部件,通过热辐射部分产生先前计算出的温度分布,该温度分布引起所需的测试应力或过载。 用局部和时间分辨温度传感器测量温度分布,与所需或计算的温度分布进行比较,并通过改变辐射影响的持续时间和/或位置来调节,直到产生所需的温度分布。

    Arrangement Provided With at Least One Luminescent Heat-Insulating Layer on a Carrier Body
    6.
    发明申请
    Arrangement Provided With at Least One Luminescent Heat-Insulating Layer on a Carrier Body 审中-公开
    布置在载体上至少有一个发光绝热层

    公开(公告)号:US20080136324A1

    公开(公告)日:2008-06-12

    申请号:US11666375

    申请日:2005-10-25

    IPC分类号: H01J1/62

    摘要: There is described an arrangement comprising at least one luminescent heat insulating layer which is disposed on a carrier body, for preventing heat transfer between the carrier body and the surrounding area of the carrier body. The heat insulating layer comprises at least one luminous substance which can be excited, with the aid of an excitation light having a determined excitation wave length for emitting a luminescent light having a determined luminescent wave length. At least one additional heat insulating layer, which is essentially free from the luminous substance, is provided. The additional heat insulating layer is essentially opaque to the excitation light in order to excite the emission of luminous light and/or for the luminous light of the luminescent substance. The luminous substance is, preferably, a mixed oxide which is selected from the group perowskit, having the total formula AA 03 and/or pyrochlore, having the total formula A2B207, wherein A and A′ are, respectively, a trivalent metal and B a tetravalent metal. The heat-insulating layers can be used, preferably in a gas turbine, and the state of the heat insulating layer can be examined in a simple manner.

    摘要翻译: 描述了一种布置,其包括至少一个发光绝热层,其布置在载体主体上,用于防止载体与承载体周围区域之间的热传递。 所述隔热层包括至少一种能够被激发的发光物质,借助于具有确定的激发波长的激发光来发射具有确定的发光波长的发光。 提供至少一个基本上不含有发光物质的隔热层。 附加的绝热层对激发光基本上是不透明的,以便激发发光和/或发光物质的发光。 发光物质优选为选自具有总计式A2B207的总计式AA03和/或烧绿石的群组中的混合氧化物,其中A和A'分别为三价金属和B a 四价金属。 优选在燃气轮机中使用隔热层,并且能够以简单的方式检查隔热层的状态。

    Piezo actuator with improved electrical contacting and employment of such a piezo actuator
    7.
    发明授权
    Piezo actuator with improved electrical contacting and employment of such a piezo actuator 有权
    压电致动器具有改进的电接触和使用这种压电致动器

    公开(公告)号:US06307306B1

    公开(公告)日:2001-10-23

    申请号:US09369604

    申请日:1999-08-06

    IPC分类号: H01L4104

    CPC分类号: H01L41/0472 H01L41/0475

    摘要: A piezo actuator (1) is disclosed that has a contact lug (20, 21) for the electrical contacting of an electrode (14, 15) of an actuator member (11). Due to an expansion and contraction of the actuator member, a mechanical stress occurs in the contact lug that is minimized in that the contact lug has a device for adapting the expanse to a dimension of the expansion and contraction. The device is, for example, a deformation material in the form of a wire weave. The piezo actuator is utilized for the drive of an injection valve in an internal combustion engine.

    摘要翻译: 公开了一种压电致动器(1),其具有用于致动器构件(11)的电极(14,15)的电接触的接触凸耳(20,21)。 由于致动器构件的膨胀和收缩,接触凸耳中产生的机械应力最小化,因为接触凸耳具有用于使膨胀件适应膨胀和收缩尺寸的装置。 该装置例如是以线编织形式的变形材料。 压电致动器用于驱动内燃机中的喷射阀。

    Heat-insulation material and arrangement of a heat-insulation layer containing said heat-insulation material
    8.
    发明申请
    Heat-insulation material and arrangement of a heat-insulation layer containing said heat-insulation material 审中-公开
    绝热材料和包含所述隔热材料的绝热层的布置

    公开(公告)号:US20060177676A1

    公开(公告)日:2006-08-10

    申请号:US10566980

    申请日:2004-07-28

    IPC分类号: E04B1/74

    摘要: A heat-insulation material for a heat-insulation layer (3) for a carrier body (2) for preventing heat transfer between the carrier body and a surrounding area (7) therearound includes at least one luminous substance which is excitable for emitting luminescent light having a defined emission wavelength and includes at least one type of metal oxide containing at least one trivalent metal (A). Also described is an arrangement of at least one heat-insulation layer which contains the heat-insulation material and is applied to the carrier body. The described heat-insulation material is characterised in that the metal oxide is embodied in the form of a mixed oxide selected in a perovskite group of total formula AA′O3, and/or of pyrochlore of total formula A2B2O7, wherein A′ is the trivalent metal and B is a tetravalent metal. The heat-insulation layer containing the heat-insulation material is preferably used for a gas turbine.

    摘要翻译: 一种用于防止载体与周围区域(7)之间的热传递的用于载体主体(2)的绝热层(3)的绝热材料包括至少一种可发光的发光物质 具有限定的发射波长并且包括至少一种含有至少一种三价金属(A)的金属氧化物。 还描述了至少一个包含绝热材料并被施加到载体主体的绝热层的布置。 所述绝热材料的特征在于金属氧化物以选自总体式AA'O 3 N的钙钛矿组中的混合氧化物的形式和/或总式 A 2是3价金属,B是四价金属。 含有绝热材料的绝热层优选用于燃气轮机。

    Composite ultrasound transducer and method for manufacturing a
structured component therefor of piezoelectric ceramic
    10.
    发明授权
    Composite ultrasound transducer and method for manufacturing a structured component therefor of piezoelectric ceramic 失效
    复合超声波传感器及其制造压电陶瓷结构构件的方法

    公开(公告)号:US5164920A

    公开(公告)日:1992-11-17

    申请号:US706354

    申请日:1991-05-28

    摘要: A composite ultrasound transducer (array) contains piezoelectric ceramic transducer elements which radiate substantially in the longitudinal direction, and are embedded in a polymer matrix. The transducer elements have such a geometrical structure, and are arranged relative to each other, so that the development of oscillation modes perpendicular to the longitudinal direction of the transducer elements is suppressed. A method for manufacturing the composite ultrasound transducer includes the steps of filling a plastic form, having a "negative" of the desired shape of the transducer elements, with ceramic slurry, and pyrolyzing the plastic form after the slurry dries therein. The resulting voids between the hardened ceramic elements are filled with polymer to create the overall composite transducer. The transducer elements can thus be given an arbitrary shape and arrangement, such as hexagonal or irregular square structures, having a trapezoidal cross-section in planes parallel to the longitudinal axis of the transducer elements.

    摘要翻译: 复合超声波换能器(阵列)包含基本上沿纵向辐射的压电陶瓷换能器元件,并嵌入聚合物基体中。 换能器元件具有这样的几何结构,并且相对于彼此布置,从而抑制了与换能器元件的纵向方向垂直的振荡模式的发展。 制造复合超声波换能器的方法包括以下步骤:用陶瓷浆料填充具有所需形状的换能器元件的“负极”的塑料形式,并且在浆料在其中干燥之后热塑塑料形式。 所形成的硬化陶瓷元件之间的空隙用聚合物填充以形成整个复合传感器。 因此,换能器元件可以具有任意形状和布置,例如六边形或不规则正方形结构,在平行于换能器元件的纵向轴线的平面中具有梯形横截面。