Field repairable high temperature smooth wear coating
    5.
    发明授权
    Field repairable high temperature smooth wear coating 有权
    现场可修高温平滑磨损涂层

    公开(公告)号:US07588797B2

    公开(公告)日:2009-09-15

    申请号:US10819856

    申请日:2004-04-07

    摘要: A chemical composition and method for repairing a thermal barrier coating on a component designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The method repairs a thermal barrier coating on a component that has suffered localized damage to the thermal barrier coating. After cleaning the surface area of the component exposed by the localized spallation, a paste-like mixture of a ceramic composition comprising ceramic powders and nano-sized ceramic materials in a binder is applied to the surface area of the component, and is optionally smoothed using mechanical means. The composition is then allowed to dry and cure to form a dried coating having polymeric characteristics. Upon subsequent heating, the dried coating reacts to produce a glassy ceramic repair coating. Due to the thixotropic properties of the coating composition upon application to a component, the repair method can be performed in-situ while the component remains installed in its operating environment.

    摘要翻译: 用于修复设计用于恶劣热环境的部件上的热障涂层的化学组成和方法,例如燃气涡轮发动机的涡轮机,燃烧器和增压器部件。 该方法修复已经对热障涂层局部损坏的部件上的热障涂层。 在清洁通过局部剥离暴露的部件的表面积之后,将包含陶瓷粉末和纳米尺寸陶瓷材料的陶瓷组合物的粘合剂的糊状混合物施加到部件的表面区域,并且可选地使用 机械手段。 然后将组合物干燥并固化以形成具有聚合特性的干燥涂层。 随后加热,干燥的涂层反应生成玻璃状陶瓷修补涂层。 由于涂料组合物在施用于组分时的触变性能,可以在组分保持安装在其操作环境中时原位进行修复方法。

    COMPOSITION AND METHOD FOR A THERMAL COATING SYSTEM
    7.
    发明申请
    COMPOSITION AND METHOD FOR A THERMAL COATING SYSTEM 审中-公开
    热涂层系统的组成和方法

    公开(公告)号:US20120148834A1

    公开(公告)日:2012-06-14

    申请号:US13402565

    申请日:2012-02-22

    IPC分类号: B32B18/00 B32B33/00 B32B15/04

    摘要: A thermal coating includes a substrate, a first coating layer, and a second coating layer. The substrate is selected from the group consisting of superalloys and ceramic matrix composites. The first coating layer comprises an alumina powder, a silica binder, and at least one additive selected from either a first group or a second group. The second coating layer comprises at least one of zinc titanate or cerium oxide. A method for applying a thermal coating system includes spraying a bond coat mixture onto a substrate using a liquid electrostatic sprayer. The bond coat mixture comprises an alumina powder, a silica binder, and at least one additive selected from either a first group or a second group. The method further includes applying a top coat mixture onto the bond coat mixture, wherein the top coat mixture comprises at least one of zinc titanate or cerium oxide.

    摘要翻译: 热涂层包括基底,第一涂层和第二涂层。 基材选自超级合金和陶瓷基复合材料。 第一涂层包含氧化铝粉末,二氧化硅粘合剂和至少一种选自第一组或第二组的添加剂。 第二涂层包含钛酸锌或氧化铈中的至少一种。 施加热涂覆系统的方法包括使用液体静电喷涂器将粘合涂层混合物喷涂到基底上。 粘合涂层混合物包含氧化铝粉末,二氧化硅粘合剂和至少一种选自第一组或第二组的添加剂。 该方法还包括将面漆混合物施加到粘合涂层混合物上,其中顶涂层混合物包含钛酸锌或氧化铈中的至少一种。

    METHOD OF REPAIRING A THERMAL BARRIER COATING AND REPAIRED COATING FORMED THEREBY
    8.
    发明申请
    METHOD OF REPAIRING A THERMAL BARRIER COATING AND REPAIRED COATING FORMED THEREBY 审中-公开
    修复热障涂层和修复涂层的方法

    公开(公告)号:US20110059321A1

    公开(公告)日:2011-03-10

    申请号:US12144109

    申请日:2008-06-23

    IPC分类号: B32B18/00 B05D3/00 B32B38/00

    摘要: A coating composition and repair method suitable for repairing thermal barrier coatings (TBCs), and particularly TBCs based on alumina-silica compositions. The method includes preparing a coating composition containing solid ceramic particles, hollow ceramic particles, and a silica precursor binder, applying the coating composition on a surface area of a component exposed by an opening, for example, spallation of the TBC, and then reacting the binder to yield a repair coating that covers the surface area of the component. The resulting repair coating contains the solid ceramic particles and the hollow ceramic particles in a silica matrix formed by thermally decomposing the binder.

    摘要翻译: 适用于修复热障涂层(TBC)的涂料组合物和修复方法,特别是基于氧化铝 - 二氧化硅组合物的TBC。 该方法包括制备含有固体陶瓷颗粒,中空陶瓷颗粒和二氧化硅前体粘合剂的涂料组合物,将涂料组合物涂布在通过开口暴露的组分的表面区域上,例如TBC的剥离,然后使 粘合剂以产生覆盖部件的表面积的修复涂层。 所得到的修补涂层含有固体陶瓷颗粒和通过热分解粘合剂形成的二氧化硅基质中的中空陶瓷颗粒。