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    Beta-phase nickel aluminide overlay coatings and process therefor
    1.
    发明申请
    Beta-phase nickel aluminide overlay coatings and process therefor 有权
    β相镀镍及其制备方法

    公开(公告)号：US20040067320A1

    公开(公告)日：2004-04-08

    申请号：US10248056

    申请日：2002-12-13

    申请人： GENERAL ELECTRIC COMPANY

    发明人： Irene Spitsberg ,  Joseph David Rigney ,  Ramgopal Darolia ,  Elissa Hae-Kyung Lee ,  Jeffrey Allan Pfaendtner

    IPC分类号： B32B015/00 ,  B32B015/10 ,  B05D003/02 ,  B05D001/36

    CPC分类号： C23C28/321 ,  C21D7/06 ,  C23C4/18 ,  C23C8/02 ,  C23C26/00 ,  C23C28/345 ,  C23C28/3455 ,  Y10T428/12611 ,  Y10T428/12736 ,  Y10T428/12937 ,  Y10T428/12944

    摘要： A beta-phase nickel aluminide (NiAl) overlay coating (24) and method for modifying the grain structure of the coating (24) to improve its oxidation resistance. The coating (24) is deposited by a method that produces a grain structure characterized by grain boundaries (44) exposed at the outer coating surface (36). The grain boundaries (44) may also contain precipitates (40) as a result of the alloyed chemistry of the coating (24). During or after deposition, the overlay coating (24) is caused to form new grain boundaries (34) that, though open to the outer surface (36) of the coating (24), are free of precipitates or contain fewer precipitates (40) than the as-deposited grain boundaries (44). New grain boundaries (34) are preferably produced by causing the overlay coating (24) to recrystallize during coating deposition or after deposition as a result of a surface treatment followed by heat treatment.

    摘要翻译： β相镍铝化合物（NiAl）覆盖层（24）以及用于改变涂层（24）的晶粒结构以提高其抗氧化性的方法。 通过产生以在外涂层表面（36）处暴露的晶界（44）为特征的晶粒结构的方法沉积涂层（24）。 由于涂层（24）的合金化学，晶界（44）也可含有沉淀物（40）。 在沉积期间或之后，使覆盖涂层（24）形成新的晶粒边界（34），其尽管向涂层（24）的外表面（36）开口，但没有沉淀物或含有较少的沉淀物（40） 比沉积的晶界（44）。 优选通过在涂布沉积期间或沉积后的覆盖涂层（24）进行再结晶，然后进行热处理后的表面处理，来制造新的晶界（34）。

    Hybrid high temperature articles and method of making
    4.
    发明申请
    Hybrid high temperature articles and method of making 有权
    混合高温物品及其制作方法

    公开(公告)号：US20030175122A1

    公开(公告)日：2003-09-18

    申请号：US10063091

    申请日：2002-03-18

    申请人： General Electric Company

    发明人： Ji-Cheng Zhao ,  Liang Jiang ,  Melvin Robert Jackson ,  Ramgopal Darolia ,  Robert Edward Schafrik

    IPC分类号： F01D005/28

    CPC分类号： F01D5/18 ,  F01D5/14 ,  F01D5/28 ,  F05D2300/143 ,  Y02T50/67 ,  Y02T50/672 ,  Y02T50/676

    摘要： An article for use in a hot gas path of a gas turbine assembly, a metallic skin for such an article, and a method for making such an article are presented with, for example, the article comprising a spar, the spar providing mechanical support for the article and comprising a cooling fluid delivery system, a top end, and a bottom end; a standoff structure attached to the spar, the standoff structure comprising a plurality of spacing elements in a spaced-apart relation to each other, the spacing elements having first ends adjacent to the spar and second ends opposite to the first ends; a skin conformally surrounding the spar and the standoff structure, the skin comprising a top end and a bottom end, wherein the standoff structure separates the spar and the skin, wherein the plurality of spacing elements is disposed with an inner surface of the skin adjacent to the second ends of the spacing elements to form a plurality of plena between the spar and the skin, the plena in fluid communication with the cooling fluid delivery system, the skin comprising at least one metal selected from the group consisting of Rh, Pd, and Pt; and a base connecting the bottom end of the spar and the bottom end of the skin.

    摘要翻译： 用于燃气轮机组件的热气体路径的物品，这种物品的金属表皮以及制造这种物品的方法具有例如包括翼梁的物品，所述翼梁提供机械支撑 所述制品包括冷却流体输送系统，顶端和底端; 所述隔离结构附接到所述翼梁，所述间隔结构包括彼此间隔开的关系的多个间隔元件，所述间隔元件具有与所述翼梁相邻的第一端和与所述第一端相对的第二端; 皮肤保形地围绕所述翼梁和所述支架结构，所述皮肤包括顶端和底端，其中所述支座结构分离所述翼梁和所述皮肤，其中所述多个间隔元件设置有皮肤的内表面， 所述间隔元件的第二端在所述翼梁和皮肤之间形成多个斑块，所述斑块与所述冷却流体输送系统流体连通，所述皮肤包含至少一种选自Rh，Pd和 铂 以及连接翼梁的底端和皮肤底端的底座。

    Thermal barrier coating and process therefor
    5.
    发明申请
    Thermal barrier coating and process therefor 失效
    热障涂层及其工艺

    公开(公告)号：US20030129316A1

    公开(公告)日：2003-07-10

    申请号：US10064785

    申请日：2002-08-16

    申请人： General Electric Company

    发明人： Ramgopal Darolia ,  Boris A. Movchan ,  Yuriy E. Rudoy ,  Leonella M. Nerodenko ,  Irene Spitsberg ,  David John Wortman

    IPC分类号： B05D001/36

    CPC分类号： C23C28/3215 ,  C23C14/06 ,  C23C28/321 ,  C23C28/345 ,  C23C28/3455 ,  C23C30/00 ,  F01D5/288 ,  F05D2300/15 ,  Y10T428/249954 ,  Y10T428/249956 ,  Y10T428/249957 ,  Y10T428/249976 ,  Y10T428/24999

    摘要： A thermal barrier coating, or TBC (26), and method for forming the TBC (26). The TBC (26) is formed of a thermal-insulating material that contains yttria-stabilized zirconia (YSZ) alloyed with at least a third oxide. The TBC (26) is formed to also contain elemental carbon, and may potentially contain carbides and/or a carbon-containing gas that forms from the thermal decomposition of carbon. The TBC (26) is characterized by lower density and thermal conductivity, high temperature stability and improved mechanical properties. To exhibit the desired effect, the third oxide is more particularly one that increases the lattice strain energy of the TBC microstructure as a result of having an ion size that is sufficiently different than a zirconium ion.

    摘要翻译： 热障涂层或TBC（26），以及形成TBC（26）的方法。 TBC（26）由包含氧化钇稳定的氧化锆（YSZ）的绝热材料形成，其与至少三种氧化物合金化。 TBC（26）形成为也含有元素碳，并且可能含有从碳的热分解形成的碳化物和/或含碳气体。 TBC（26）的特征在于较低的密度和导热性，高温稳定性和改善的机械性能。 为了表现出期望的效果，由于具有与锆离子充分不同的离子尺寸的结果，第三氧化物更特别地增加了TBC微结构的晶格应变能。

    Vapor deposition process and apparatus therefor
    7.
    发明申请
    Vapor deposition process and apparatus therefor 失效
    气相沉积工艺及其设备

    公开(公告)号：US20040043150A1

    公开(公告)日：2004-03-04

    申请号：US10064887

    申请日：2002-08-27

    申请人： General Electric Company

    发明人： Boris A. Movchan ,  Irene Spitsberg ,  Ramgopal Darolia

    IPC分类号： C23C014/30

    CPC分类号： C23C14/083 ,  C23C14/30 ,  C23C14/548 ,  C23C28/321 ,  C23C28/3215 ,  C23C28/325 ,  C23C28/345 ,  C23C28/3455

    摘要： A process and apparatus for depositing a ceramic coating on a component. The process involves a technique for evaporating an evaporation source containing multiple different oxide compounds, at least one of the oxide compounds having a vapor pressure that is higher than the remaining oxide compounds, to depositing a coating of the multiple oxide compounds. A high energy beam is projected onto the evaporation source to melt and form a vapor cloud of the oxide compounds of the evaporation source, while preventing the vapor cloud from contacting and condensing on the component during an initial phase in which the relative amount of the one oxide compound in the vapor cloud is greater than its relative amount in the evaporation source. During a subsequent phase in which the relative amount of the one oxide compound in the vapor cloud has decreased to something approximately equal to its relative amount in the evaporation source, the vapor cloud is allowed to contact and condense on the component to form the coating.

    摘要翻译： 一种用于在组件上沉积陶瓷涂层的工艺和设备。 该方法涉及一种用于蒸发含有多种不同氧化物化合物的蒸发源的技术，至少一种具有高于其余氧化物化合物的蒸汽压的氧化物化合物沉积多个氧化物化合物的涂层。 将高能量束投影到蒸发源上以熔化并形成蒸发源的氧化物化合物的蒸汽云，同时防止蒸气云在初始阶段期间在组分上接触和冷凝，其中相对量 蒸汽云中的氧化物化合物大于其在蒸发源中的相对量。 在蒸发云中的一种氧化物化合物的相对量已经降低到与蒸发源中的相对量相似的程度的后续阶段中，允许蒸汽云接触并冷凝在组分上以形成涂层。

    Physical vapor deposition apparatus and process
    8.
    发明申请
    Physical vapor deposition apparatus and process 有权
    物理气相沉积装置及工艺

    公开(公告)号：US20030077403A1

    公开(公告)日：2003-04-24

    申请号：US10063808

    申请日：2002-05-15

    申请人： General Electric Company

    发明人： Ramgopal Darolia ,  Reed Roeder Corderman ,  Joseph David Rigney ,  Richard Arthur Nardi JR. ,  Michael James Weimer

    IPC分类号： C23C014/00 ,  C23C014/28

    CPC分类号： B82Y10/00 ,  C23C14/16 ,  C23C14/246 ,  C23C14/30

    摘要： A PVD process and apparatus (120) for depositing a coating (132) from multiple sources (110,111) of different materials. The process and apparatus (120) are particularly intended to deposit a beta-nickel aluminide coating (132) containing zirconium, hafnium, yttrium and/or cerium, whose vapor pressures are sufficiently lower than NiAl to require a different evaporation rate in order to achieve higher deposition rates and better control of the coating chemistry. The PVD process and apparatus (120) entail feeding at least two materials (110,111) into a coating chamber (122) and melting the materials (110,111) at different rates to form separate molten pools (114,115) thereof. Articles (130) to be coated are suspended within the coating chamber (122), and transported with a support apparatus (118) relative to the two molten pools (114,115) so as to deposit a coating (132) with a controlled composition that is a mixture of the first and second materials (110,111).

    摘要翻译： 一种用于从不同材料的多个源（110,111）沉积涂层（132）的PVD工艺和设备（120）。 该方法和装置（120）特别旨在沉积含有锆，铪，钇和/或铈的β-镍铝化物涂层（132），其蒸汽压力充分低于NiAl以需要不同的蒸发速率，以达到 更高的沉积速率和更好的控制涂层化学性能。 PVD工艺和设备（120）需要将至少两种材料（110,111）进料到涂覆室（122）中并以不同的速率熔化材料（110,111）以形成其分离的熔池（114,115）。 待涂覆的制品（130）悬浮在涂覆室（122）内，并相对于两个熔池（114,115）用支撑装置（118）运输，以便沉积具有受控组合物的涂层（132） 第一和第二材料（110,111）的混合物。