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    SILICON CARBIDE MULTILAYERED CLADDING AND NUCLEAR REACTOR FUEL ELEMENT FOR USE IN WATER-COOLED NUCLEAR POWER REACTORS
    3.
    发明申请
    SILICON CARBIDE MULTILAYERED CLADDING AND NUCLEAR REACTOR FUEL ELEMENT FOR USE IN WATER-COOLED NUCLEAR POWER REACTORS 审中-公开
    用于水冷核反应堆的硅碳化物多层粘合剂和核反应堆燃料元件

    公开(公告)号：US20160049211A1

    公开(公告)日：2016-02-18

    申请号：US14012242

    申请日：2013-08-28

    Applicant: Ceramic Tubular Products, LLC

    Inventor： Herbert Feinroth ,  Matthew W. Ales ,  Gregory T. Markham

    IPC: G21C3/07

    CPC classification number: G21C3/07 ,  C04B35/51 ,  C04B2235/32 ,  C23C16/26 ,  C23C16/325 ,  C23C28/046 ,  G21C21/02 ,  Y02E30/40

    Abstract: A nuclear fuel element for use in water-cooled nuclear power reactors and an improved multilayered silicon carbide tube for use in water-cooled nuclear power reactors and other high temperature, high strength thermal tubing applications including solar energy collectors. The fuel element includes a multilayered silicon carbide cladding tube. The multilayered silicon carbide cladding tube includes (i) an inner layer; (ii) a central layer; and (iii) a crack propagation prevention layer between the inner layer and the central layer. A stack of individual fissionable fuel pellets may be located within the cladding tube. In addition, a thermally conductive layer may be deposited within the cladding tube between the inner layer of the cladding tube and the stack of fuel pellets. The multilayered silicon carbide cladding tube may also be adapted for other high temperature, high strength thermal tubing applications including solar energy collectors.

    Abstract translation: 用于水冷核反应堆的核燃料元件和用于水冷核反应堆和其他高温，高强度热管应用的改进的多层碳化硅管，包括太阳能收集器。 燃料元件包括多层碳化硅包层管。 多层碳化硅包层管包括（i）内层; （ii）中心层; 和（iii）内层和中心层之间的裂纹扩展防止层。 单个可裂变燃料颗粒的堆叠可以位于包层管内。 此外，导热层可以在包壳管内部包覆管的内层和燃料粒料堆之间沉积。 多层碳化硅包覆管也可适用于其它高温，高强度的热管应用，包括太阳能收集器。

    PIEZOELECTRIC ACTUATOR, INK JET HEAD, AND METHOD FOR PRODUCING PIEZOELECTRIC ACTUATOR
    5.
    发明申请
    PIEZOELECTRIC ACTUATOR, INK JET HEAD, AND METHOD FOR PRODUCING PIEZOELECTRIC ACTUATOR 有权
    压电致动器，喷墨头和制造压电致动器的方法

    公开(公告)号：US20150070443A1

    公开(公告)日：2015-03-12

    申请号：US14389101

    申请日：2013-03-29

    Applicant: KYOCERA Corporation

    Inventor： Shuzo Iwashita

    IPC: B41J2/14 ,  H01L41/18 ,  H01L41/25

    CPC classification number: B41J2/14201 ,  B41J2/14233 ,  B41J2002/14491 ,  C04B35/493 ,  C04B2235/32 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3294 ,  C04B2235/96 ,  H01L41/0973 ,  H01L41/18 ,  H01L41/1871 ,  H01L41/1875 ,  H01L41/1876 ,  H01L41/25 ,  H01L41/253 ,  H01L41/313 ,  Y10T29/42

    Abstract: A head has a base and a piezoelectric element which is superimposed on and fastened to the base in a thickness direction. The piezoelectric element has a plate-shaped piezoelectric body, and a common electrode and a individual electrode arranged so as to sandwich the piezoelectric body in the thickness direction. The base has a higher thermal expansion coefficient than the piezoelectric body (the piezoelectric element 23). The piezoelectric body has a tetragonal principal crystal phase, in which the degree of orientation of the c-axis toward one side in the thickness direction (positive side in z direction) in the region sandwiched by the common electrode and the individual electrode is 44% or more and 56% or less in terms of the Lotgering factor and in which the residual stress in the surface direction is 0 MPa or more and 35 MPa or less in the direction of compression.

    Abstract translation: 头部具有基底和压电元件，其在厚度方向上叠加并固定到基底。 压电元件具有板状压电体，公共电极和单独电极，其在厚度方向上夹着压电体。 基体具有比压电体（压电元件23）更高的热膨胀系数。 压电体具有四方晶主晶相，其中夹在公共电极和单独电极的区域中的c轴朝向厚度方向（z方向的正侧）朝向一侧的取向度为44％ 以上，并且其中表面方向上的残余应力在压缩方向上为0MPa以上且35MPa以下。

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