TREATMENT PROCESS, REJUVENATION PROCESS, TREATMENT COMPOSITION, AND TREATED COMPONENT

    公开(公告)号:US20170080458A1

    公开(公告)日:2017-03-23

    申请号:US14973935

    申请日:2015-12-18

    Abstract: A treatment composition is disclosed including a carrier and a sacrificial oxide-forming material suspended within the carrier. The sacrificial oxide-forming material is selected from the group consisting of tin oxide, magnesium oxide, antimony pentaoxide, and combinations thereof. A treatment process for a gas turbine component including an abradable ceramic coating is disclosed. The process includes contacting the abradable ceramic coating with the treatment composition. The sacrificial oxide-forming material is infused into the abradable ceramic coating to form sacrificial oxide-forming deposits within the abradable ceramic coating. A rejuvenation process is disclosed including contacting the hot gas path surface of a gas turbine component with a rinse composition comprising water and the treatment composition to form the sacrificial oxide-forming deposits within the abradable ceramic coating.

    COATING, COATING SYSTEM, AND COATING METHOD
    13.
    发明申请
    COATING, COATING SYSTEM, AND COATING METHOD 有权
    涂料,涂料体系和涂料方法

    公开(公告)号:US20160102212A1

    公开(公告)日:2016-04-14

    申请号:US14509566

    申请日:2014-10-08

    Abstract: A coating, a coating system, and a coating method are provided. The coating includes between about 0.25-35% filler particles embedded in a chrome phosphate binder matrix comprising a balance of the coating by volume. The filler particles have a size in the range from nanosize to six microns with an aspect ratio of from 1:1 to 3:1, and include up to 100% by weight lubricious particles with a balance hard particles. The lubricious particles are selected from the group consisting of boron nitride (BN), titanium nitride (TiN), titanium oxide (TiO2), zinc (Zn), tin (Sn), oxides of zinc and tin, and combinations thereof. The hard particles are selected from the group consisting of chromium carbide (CrC), tungsten carbide (WC), silicon (Si), aluminum (Al), oxides or nitrides of silicon and aluminum, and combinations thereof. A green slurry coating includes an evaporable solvent mixed with the filler particles and chrome phosphate binder matrix.

    Abstract translation: 提供涂料,涂料体系和涂布方法。 该涂层包括约0.25-35%的填充在磷酸铬粘合剂基质中的填料颗粒,其包含涂料的体积平衡值。 填料颗粒的尺寸范围为纳米尺寸至6微米,纵横比为1:1至3:1,并且包含高达100重量%的具有平衡硬颗粒的润滑颗粒。 光滑颗粒选自氮化硼(BN),氮化钛(TiN),氧化钛(TiO2),锌(Zn),锡(Sn),锌和锡的氧化物及其组合。 硬质颗粒选自碳化铬(CrC),碳化钨(WC),硅(Si),铝(Al),硅和铝的氧化物或氮化物及其组合。 绿色浆料涂料包括与填料颗粒和磷酸铬粘合剂基质混合的可蒸发溶剂。

    NOVEL ARCHITECTURES FOR ULTRA LOW THERMAL CONDUCTIVITY THERMAL BARRIER COATINGS WITH IMPROVED EROSION AND IMPACT PROPERTIES
    15.
    发明申请
    NOVEL ARCHITECTURES FOR ULTRA LOW THERMAL CONDUCTIVITY THERMAL BARRIER COATINGS WITH IMPROVED EROSION AND IMPACT PROPERTIES 审中-公开
    具有改进的腐蚀和冲击特性的超低导热性热障涂层的新型结构

    公开(公告)号:US20150233256A1

    公开(公告)日:2015-08-20

    申请号:US13741848

    申请日:2013-01-15

    Abstract: A thermal barrier coating system for metal components in a gas turbine engine having an ultra low thermal conductivity and high erosion resistance, comprising an oxidation-resistant bond coat formed from an aluminum rich material such as MCrAlY and a thermal insulating ceramic layer over the bond coat comprising a zirconium or hafnium oxide lattice structure (ZrO2 or HfO2) and an oxide stabilizer compound comprising one or more of the compounds ytterbium oxide (Yb2O3), yttria oxide (Y2O3), hafnium oxide (HfO2), lanthanum Oxide (La2O3), tantalum oxide (Ta2O5) or zirconium oxide (ZrO2). The invention includes a new method of forming the ceramic-based thermal barrier coatings using a liquid-based suspension containing microparticles comprised of at least one of the above compounds ranging in size between about 0.1 and 5 microns. The coatings form a tortuous path of ceramic interfaces that increase the coating toughness while preserving the ultra low thermal conductivity.

    Abstract translation: 一种用于具有超低热导率和高耐侵蚀性的燃气轮机中的金属部件的隔热涂层系统,包括由富铝材料如MCrAlY形成的抗氧化粘合涂层和粘结涂层上的绝热陶瓷层 包括锆或铪氧化物晶格结构(ZrO 2或HfO 2)和包含一种或多种化合物氧化镱(Yb 2 O 3),氧化钇(Y 2 O 3),氧化铪(HfO 2),氧化镧(La 2 O 3),钽 氧化物(Ta2O5)或氧化锆(ZrO2)。 本发明包括使用包含由至少一种上述化合物构成的微粒的液体基悬浮液形成陶瓷基热障涂层的新方法,其尺寸范围为约0.1至5微米。 涂层形成陶瓷界面的曲折路径,从而提高涂层韧性,同时保持超低热导率。

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