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    Ceramic coatings and methods of making the same
    1.
    发明公开
    Ceramic coatings and methods of making the same 审中-公开
    Keramische Beschichtungen und Herstellungsverfahrendafür

    公开(公告)号：EP2322685A1

    公开(公告)日：2011-05-18

    申请号：EP10186960.0

    申请日：2010-10-08

    Applicant: General Electric Company

    Inventor： Ruud, James Anthony ,  Ajdelsztajn, Leonardo

    IPC: C23C4/10 ,  C23C4/12

    CPC classification number: C23C4/134 ,  C23C4/11 ,  C23C4/129

    Abstract: A method for forming a ceramic coating is provided. The method includes providing a slurry comprising a liquid and a plurality of feedstock particles disposed in the liquid, injecting the slurry into the flame of a thermal spray gun, and spraying the slurry on a surface of a substrate using the thermal spray gun to form the ceramic coating such that at least a part of the surface of the substrate is covered by the ceramic coating, wherein a thickness of the ceramic coating is in a range from about 10 nanometers to about 3 micrometers, and wherein a density of the ceramic coating is more than about 90 percent, and wherein the ceramic coating is a continuous coating.

    Abstract translation: 提供了形成陶瓷涂层的方法。 该方法包括提供包括液体和设置在液体中的多个原料颗粒的浆料，将浆料注入热喷枪的火焰中，并使用热喷枪将浆料喷涂在基材的表面上以形成 陶瓷涂层，使得衬底的表面的至少一部分被陶瓷涂层覆盖，其中陶瓷涂层的厚度在约10纳米至约3微米的范围内，并且其中陶瓷涂层的密度为 大于约90％，并且其中陶瓷涂层是连续涂层。

    Fuel Cell Interconnect Structures, And Related Devices And Processes
    6.
    发明公开
    Fuel Cell Interconnect Structures, And Related Devices And Processes 审中-公开
    Brennstoffzellenverbindungsstrukturen undzugehörigeVorrichtungen und Verfahren

    公开(公告)号：EP2136427A1

    公开(公告)日：2009-12-23

    申请号：EP09162443.7

    申请日：2009-06-10

    Applicant: General Electric Company

    Inventor： Alinger, Matthew Joseph ,  Klug, Frederic Joseph ,  Ruud, James Anthony ,  Renou, Stephane ,  SarrafiI-Nour, Reza

    IPC: H01M8/02

    CPC classification number: H01M8/021 ,  H01M8/0228 ,  H01M2008/1293

    Abstract: A method for the formation of a diffusion barrier layer (56) on a surface (52) of at least one fuel cell interconnect structure (50) is described. The interconnect structure (50) is usually formed from ferritic stainless steel, and includes chromium. The method includes the step of coating an austenite phase-stabilizer (54) on the interconnect surface (52), and then heating the coated surface. The heat treatment transforms the microstructure of the surface region of the interconnect, from a substantially ferritic body-centered cubic (BCC) phase to a substantially austenitic face-centered cubic (FCC) phase. The diffusion rate of chromium through the FCC phase is relatively low. Thus, the formation of a thick layer of chromium oxide can be minimized, leading to better fuel cell performance. Related fuel cells and fuel cell stacks are also disclosed.

    Abstract translation: 描述了在至少一个燃料电池互连结构（50）的表面（52）上形成扩散阻挡层（56）的方法。 互连结构（50）通常由铁素体不锈钢形成，并且包括铬。 该方法包括在互连表面（52）上涂覆奥氏体相稳定剂（54），然后加热涂覆表面的步骤。 热处理将互连表面区域的微观结构从基本上铁素体体心立方（BCC）相转变为基本上奥氏体的面心立方（FCC）相。 铬通过FCC相的扩散速率相对较低。 因此，可以最小化形成厚的氧化铬层，从而导致更好的燃料电池性能。 还公开了相关的燃料电池和燃料电池堆。

    A method for removing a coating from a substrate
    7.
    发明公开
    A method for removing a coating from a substrate 有权
    Verfahren zur Entfernung einer Beschichtung von einem Substrat

    公开(公告)号：EP1162286A1

    公开(公告)日：2001-12-12

    申请号：EP01304773.3

    申请日：2001-05-31

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Kool, Lawrence Bernard ,  Ruud, James Anthony ,  Lagraff, John Robert

    IPC: C23F1/44 ,  F01D5/00 ,  F01D25/00

    CPC classification number: C23F1/44 ,  F01D5/005 ,  F05C2201/90 ,  F05D2230/80 ,  F05D2230/90 ,  F05D2300/611

    Abstract: A method for selectively removing one or more coatings from the surface of a substrate is described. The coating is treated with an aqueous composition which includes an acid of the formula H x AF 6 , or precursors to such an acid. In that formula, A is Si, Ge, Ti, Zr, Al, and Ga; and x is 1-6. The acid is often H 2 SiF 6 . The composition may sometimes include at least one additional acid, such as phosphoric acid. The coating being removed is often an aluminide coating or an MCrAl(X)-type material. The substrate is usually a polymer or a metal, such as a superalloy.

    Abstract translation: 描述了从衬底的表面选择性地去除一个或多个涂层的方法。 用包含式H x F 6的酸或这种酸的前体的水性组合物处理该涂层。 在该式中，A是Si，Ge，Ti，Zr，Al和Ga; x为1-6。 酸通常是H2SiF6。 组合物有时可以包括至少一种另外的酸，例如磷酸。 被去除的涂层通常是铝化物涂层或MCrAl（X）型材料。 基底通常是聚合物或金属，例如超耐热合金。

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