ABRADABLE COATINGS
    1.
    发明申请
    ABRADABLE COATINGS 审中-公开
    不可磨损的涂料

    公开(公告)号:US20150354392A1

    公开(公告)日:2015-12-10

    申请号:US14300520

    申请日:2014-06-10

    CPC classification number: F01D11/122 F01D11/125 F05D2230/90 F05D2300/514

    Abstract: Turbine shroud abradable coatings that balance the apparently contradictory requirements of high flowpath solidity, low blade tip wear, and good durability in service. The shrouds include a shroud substrate, a coating system, and an abradable coating. The coating system overlies at least a portion of an outer surface of the shroud substrate. The coating system includes a bond coat, a thermal barrier coating (TBC), and/or an environmental barrier coating (EBC). The abradable coating overlies at least a portion of the barrier coating. The abradable coating defines a substantially smooth continuous flowpath surface. The abradable coating includes a hybrid microstructure including a relatively dense, high-durability phase corralling relatively porous abradable phases. The second phases are relatively more abradable by the blades of a turbine than the second regions.

    Abstract translation: 涡轮罩可磨损涂层,平衡了高流动路径坚固性,低叶尖磨损和良好的耐用性在服务中的明显矛盾的要求。 护罩包括护罩衬底,涂层系统和可磨损涂层。 涂层系统覆盖护罩衬底的外表面的至少一部分。 涂层系统包括粘合涂层,热障涂层(TBC)和/或环境屏障涂层(EBC)。 耐磨涂层覆盖至少一部分阻挡涂层。 可磨损涂层限定了基本平滑的连续流路表面。 可磨损涂层包括混合微观结构,其包括相对致密,高耐久性相位相对多孔的耐磨相。 第二阶段比涡轮机的叶片比第二区域相对更易磨损。

    SILICON-BASED REPAIR METHODS AND COMPOSITION
    2.
    发明申请
    SILICON-BASED REPAIR METHODS AND COMPOSITION 有权
    基于硅的维修方法和组合

    公开(公告)号:US20160194476A1

    公开(公告)日:2016-07-07

    申请号:US14589021

    申请日:2015-01-05

    Abstract: There is set forth herein a silicon-based patch formulation comprising about 25 to 66 percent by volume of a solvent; about 4 to 10 percent by volume of a silicon-comprising binding material; and about 30 to 65 percent by volume of a patching material, the patching material comprising particles having one or more non-actinide Group IIIA elements, wherein a molar ratio of the one or more non-actinide Group IIIA elements to silicon within the patch formulation is about 0.95 to 1.25.

    Abstract translation: 本文提出了含有约25至66%(体积)溶剂的硅基贴片制剂; 约4至10体积%的含硅粘合材料; 和约30至65体积%的修补材料,所述修补材料包含具有一种或多种非锕系IIIA族元素的颗粒,其中所述一种或多种非锕系IIIA族元素与所述贴剂配方中的硅的摩尔比 为约0.95至1.25。

    METHODS OF MANUFACTURING A SHROUD ABRADABLE COATING
    5.
    发明申请
    METHODS OF MANUFACTURING A SHROUD ABRADABLE COATING 审中-公开
    制造不可磨损涂层的方法

    公开(公告)号:US20150354393A1

    公开(公告)日:2015-12-10

    申请号:US14300666

    申请日:2014-06-10

    Abstract: Methods of manufacturing turbine shrouds with an abradable coating that balance the apparently contradictory requirements of high flowpath solidity, low blade tip wear, and good durability in service. The methods include obtaining a shroud substrate. The methods may include obtaining a coating system on the shroud substrate. The methods include forming an abradable coating on a surface of the coating system so as to form a substantially smooth flowpath surface. Forming the abradable coating includes forming a relatively dense scaffold and relatively porous filler regions in-between the relatively dense abradable scaffold. The methods may also include machining the abradable so as to achieve a substantially smooth flowpath surface comprising a relatively porous abradable phase surrounded by a relatively dense, high-durability corrale phase.

    Abstract translation: 制造具有可磨损涂层的涡轮罩的方法,其平衡了高流动路径坚固性,低叶尖磨损和良好的耐久性在服务中的明显矛盾的要求。 所述方法包括获得护罩衬底。 所述方法可以包括获得护罩衬底上的涂覆系统。 所述方法包括在涂层系统的表面上形成可磨损涂层,以便形成基本平滑的流路表面。 形成可磨损涂层包括在相对致密的可磨损支架之间形成相对致密的支架和相对多孔的填料区域。 所述方法还可以包括对可磨损进行加工,以便实现基本上平滑的流路表面,该表面包括由相对致密的高耐久性Corrale相包围的相对多孔的可磨损相。

    ENVIRONMENTAL BARRIER COATING AND METHODS OF PREPARATION

    公开(公告)号:US20170247787A1

    公开(公告)日:2017-08-31

    申请号:US15431805

    申请日:2017-02-14

    Abstract: Methods of forming an environmental barrier coating are disclosed. A method includes disposing a powder-based coating on a substrate, heat-treating the powder-based coating at a temperature greater than 800° C. and less than 1200° C. to form a porous coating that includes surface-connected pores, infiltrating at least some of the surface-connected pores of the porous coating with an infiltrant material to form an infiltrated coating, and sintering the infiltrated coating at a temperature greater than 1200° C. and less than 1500° C. to form the environmental barrier coating on the substrate.

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