Method for repairing a thermal barrier coating
    11.
    发明授权
    Method for repairing a thermal barrier coating 失效
    修补热障涂层的方法

    公开(公告)号:US5723078A

    公开(公告)日:1998-03-03

    申请号:US651183

    申请日:1996-05-24

    摘要: A method of repairing a thermal barrier coating on an article designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The method is particularly suited for the repair of thermal barrier coatings composed of a metallic bond layer formed on the surface of the article, and a columnar ceramic layer overlaying the bond layer. The method entails the steps of cleaning the bond layer exposed by localized spallation, treating the bond layer so as to texture its exposed surface, and then depositing a ceramic material on the surface of the bond layer so as to form a ceramic repair layer that completely covers the bond layer. Deposition of the repair layer can be carried out such that its upper surface projects above the adjacent ceramic layer, followed by abrading the repair layer to a height substantially level with the ceramic layer.

    摘要翻译: 修复设计用于恶劣热环境(例如燃气涡轮发动机的涡轮机,燃烧器和增压器部件)的制品上的热障涂层的方法。 该方法特别适用于由形成在制品表面上的金属结合层和覆盖接合层的柱状陶瓷层组成的热障涂层的修复。 该方法需要清洁通过局部剥离暴露的接合层的步骤,处理接合层以便将其暴露的表面织构,然后在接合层的表面上沉积陶瓷材料,以形成完全 覆盖了粘结层。 可以进行修复层的沉积,使得其上表面突出在相邻陶瓷层上方,然后将修复层研磨至与陶瓷层基本一致的高度。

    Thermal barrier coating system with intermetallic overlay bond coat
    13.
    发明授权
    Thermal barrier coating system with intermetallic overlay bond coat 失效
    带有金属间覆盖层的涂层系统

    公开(公告)号:US5238752A

    公开(公告)日:1993-08-24

    申请号:US520017

    申请日:1990-05-07

    IPC分类号: C23C14/02 C23C14/08 C23C28/00

    摘要: A thermal barrier coating system for high temperature superalloys includes an intermetallic bond coating on the substrate and a ceramic topcoat having a columnar grain structure with the columnar axis perpendicular to the surface of the coating. The intermetallic coating is preferably a nickel aluminide or a platinum aluminide, whose upper surface is oxidized during processing to form a thin layer of predominantly aluminum oxide. The ceramic topcoat is preferably zirconium oxide having from about 6 to 20 percent yttrium oxide.

    摘要翻译: 用于高温超合金的热障涂层系统包括在基底上的金属间粘合涂层和具有柱状晶粒结构的陶瓷面漆,其柱状轴垂直于涂层的表面。 金属间化合物涂层优选为铝化镍或铂铝化合物,其上表面在加工过程中被氧化以形成主要为氧化铝的薄层。 陶瓷面漆优选为具有约6至20%氧化钇的氧化锆。

    CORROSION COATING FOR TURBINE BLADE ENVIRONMENTAL PROTECTION
    15.
    发明申请
    CORROSION COATING FOR TURBINE BLADE ENVIRONMENTAL PROTECTION 有权
    用于涡轮叶片环境保护的腐蚀涂层

    公开(公告)号:US20100040476A1

    公开(公告)日:2010-02-18

    申请号:US11968368

    申请日:2008-01-02

    IPC分类号: F01D5/28

    摘要: A gas turbine engine turbine blade comprising an airfoil section, a platform section, an under platform section, and a dovetail section, an exterior surface of the dovetail section comprising a shank exterior surface and a serrated exterior surface. The blade further comprises a silicon-modified diffusion aluminide layer a surface of a turbine blade section selected from the group consisting of an exterior surface of the under platform section, the exterior surface of the dovetail section, and combinations thereof, the silicon modified diffusion aluminide layer having a concentration of silicon at a surface of the silicon-modified diffusion aluminide layer in the range of about 1 weight percent to about 10 weight percent and a concentration of aluminum at the surface of the silicon modified diffusion aluminide layer in the range of about 5 weight percent to about 25 weight percent.

    摘要翻译: 一种燃气涡轮发动机涡轮叶片,包括翼型部分,平台部分,下平台部分和燕尾部分,燕尾部分的外表面包括柄外表面和锯齿形外表面。 叶片还包括硅改性的扩散铝化物层,涡轮叶片部分的表面,其选自下部平台部分的外表面,燕尾部分的外表面及其组合,硅改性扩散铝化物 在硅改性扩散铝化物层的表面具有约1重量%至约10重量%的范围内的具有硅浓度的层,并且在硅改性扩散铝化物层的表面处的铝的浓度在约 5重量%至约25重量%。

    Corrosion coating for turbine blade environmental protection
    17.
    发明授权
    Corrosion coating for turbine blade environmental protection 失效
    涡轮叶片环保腐蚀涂层

    公开(公告)号:US07597934B2

    公开(公告)日:2009-10-06

    申请号:US11358339

    申请日:2006-02-21

    摘要: A method for making a gas turbine engine turbine blade comprising an airfoil section a platform section, an under platform section, and a dovetail section, the exterior surface of the dovetail section comprising a shank exterior surface and a serrated exterior surface. The blade further includes a silicon-modified diffusion aluminide layer a surface of a turbine blade section selected from the group consisting of the exterior surface of the under platform section, the exterior surface of the dovetail section, and combinations thereof, the aluminide layer having a concentration of silicon at a surface of the aluminide layer in the range of about 1 weight percent to about 10 weight percent and a concentration of aluminum at the surface of the aluminide layer in the range of about 5 weight percent to about 25 weight percent.

    摘要翻译: 一种用于制造燃气涡轮发动机涡轮叶片的方法,其包括翼型部分,平台部分,下平台部分和燕尾部分,燕尾部分的外表面包括柄外表面和锯齿形外表面。 叶片还包括硅改性的扩散铝化物层,涡轮叶片部分的表面,其选自下部平台部分的外表面,燕尾部分的外表面及其组合,铝化物层具有 在铝化物层的表面上硅的浓度在约1重量%至约10重量%的范围内,铝化物层的表面的铝浓度在约5重量%至约25重量%的范围内。

    Layered thermal barrier coatings containing lanthanide series oxides for improved resistance to CMAS degradation
    19.
    发明申请
    Layered thermal barrier coatings containing lanthanide series oxides for improved resistance to CMAS degradation 审中-公开
    包含镧系元素氧化物的分层热障涂层,以改善对CMAS降解的抵抗力

    公开(公告)号:US20070160859A1

    公开(公告)日:2007-07-12

    申请号:US11327091

    申请日:2006-01-06

    IPC分类号: B32B15/04

    摘要: A coating applied as a two layer system. The outer layer is an oxide of a group IV metal selected from the group consisting of zirconium oxide, hafnium oxide and combinations thereof, which are doped with an effective amount of a lanthanum series oxide. These metal oxides doped with a lanthanum series addition comprises a high weight percentage of the outer coating. As used herein, lanthanum series means an element selected from the group consisting of lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu) and combinations thereof, and lanthanum series oxides are oxides of these elements. When the zirconium oxide is doped with an effective amount of a lanthanum series oxide, a dense reaction layer is formed at the interface of the outer layer of TBC and the CMAS. This dense reaction layer prevents CMAS infiltration below it. The second layer, or inner layer underlying the outer layer, comprises a layer of partially stabilized zirconium oxide.

    摘要翻译: 涂层作为两层体系。 外层是掺杂有有效量的镧系氧化物的选自氧化锆,氧化铪及其组合的IV族金属的氧化物。 掺杂有镧系列添加剂的这些金属氧化物包括外涂层的高重量百分比。 如本文所用,镧系指选自镧(La),铈(Ce),镨(Pr),钕(Nd),ium(Pm),钐(Sm),铕(Eu), 钆(Gd),铽(Tb),镝(Dy),钬(Ho),铒(Er),ium(Tm),镱(Yb),镥(Lu)及其组合,以及镧系氧化物是 这些元素。 当氧化锆掺杂有效量的镧系氧化物时,在TBC的外层和CMAS的界面处形成致密的反应层。 这种致密的反应层可防止CMAS渗透在其下方。 外层的第二层或内层包含部分稳定的氧化锆层。

    Method for forming a non-degrading refective coating system for high
temperature heat shields
    20.
    发明授权
    Method for forming a non-degrading refective coating system for high temperature heat shields 失效
    用于形成用于高温隔热罩的非降解反射涂层系统的方法

    公开(公告)号:US5545437A

    公开(公告)日:1996-08-13

    申请号:US493950

    申请日:1995-06-23

    摘要: A heat shield which is adapted to be formed on an article which must operate in an environment in which the article is subject to thermal radiation while at an elevated service temperature. The heat shield is composed of a barrier layer formed or deposited on the surface of the article, and a reflective layer on the barrier layer. The reflective layer serves to reflect a majority of the thermal radiation which is incident on the article. The barrier layer serves to substantially prevent degradation of the reflective layer at the elevated service temperature, so as to prevent the reflectivity of the reflective layer from being degraded while the article is in service. The reflective layer is preferably a noble metal, a noble metal alloy or aluminum, while the barrier layer is preferably a nitride, aluminum oxide, yttria-stabilized zirconia, or an oxide which can be grown by oxidation of the article's surface.

    摘要翻译: 一种热屏蔽件,其适于形成在物品上,该物品必须在物品在升高的使用温度下经受热辐射的环境中操作。 隔热罩由形成或沉积在物品表面上的阻挡层和阻挡层上的反射层构成。 反射层用于反射入射在物品上的大部分热辐射。 阻挡层用于基本上防止在升高的使用温度下的反射层的劣化,从而防止在制品使用时反射层的反射率降低。 反射层优选为贵金属,贵金属合金或铝,而阻挡层优选为氮化物,氧化铝,氧化钇稳定的氧化锆或可通过制品的表面氧化生长的氧化物。