公开(公告)号：US06458473B1

公开(公告)日：2002-10-01

申请号：US08786814

申请日：1997-01-21

申请人： Jeffrey A. Conner ,  Bangalore A. Nagaraj ,  Joseph A. Heaney, III ,  Nripendra N. Das ,  Patricia A. Zomcik ,  David J. Wortman ,  David V. Rigney ,  Jon C. Schaeffer

发明人： Jeffrey A. Conner ,  Bangalore A. Nagaraj ,  Joseph A. Heaney, III ,  Nripendra N. Das ,  Patricia A. Zomcik ,  David J. Wortman ,  David V. Rigney ,  Jon C. Schaeffer

IPC分类号： B21D3900

CPC分类号： C23C28/00 ,  C03C27/046 ,  C22C5/04 ,  C22C30/00 ,  C23C10/52 ,  F05B2230/90 ,  F05C2253/12 ,  Y10T428/12549 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/12667

摘要： A thermal barrier coating system and a method for forming the coating system on a component designed for use in a hostile thermal environment, such as superalloy turbine, combustor and augmentor components of a gas turbine engine. The method is particularly directed to a thermal barrier coating system that includes a thermal insulating ceramic layer and a diffusion aluminide bond coat on which an aluminum oxide scale is grown to protect the underlying surface of the component and to chemically bond the ceramic layer. The bond coat is formed to contain an additive metal of platinum, palladium, rhodium, chromium and/or silicon, and an additive element of yttrium and/or zirconium, with possible additions of hafnium. The bond coat may be formed by codepositing aluminum with the active element, or by depositing the additive metal and active element on the surface of the component, and then aluminizing to form the diffusion aluminide bond coat.

摘要翻译： 一种热障涂层系统和一种在设计用于恶劣热环境的部件上形成涂层系统的方法，例如燃气涡轮发动机的超级合金涡轮机，燃烧器和增压器部件。 该方法特别涉及一种热障涂层系统，其包括绝热陶瓷层和扩散铝化物粘合涂层，其上生长氧化铝垢以保护部件的下表面并化学粘合陶瓷层。 形成粘合涂层以包含铂，钯，铑，铬和/或硅的添加金属和钇和/或锆的添加元素，可能添加铪。 粘结涂层可以通过将铝与活性元素共沉积，或者通过将添加剂金属和活性元素沉积在组分的表面上，然后镀铝以形成扩散铝化物粘合涂层而形成。

公开(公告)号：US5683825A

公开(公告)日：1997-11-04

申请号：US581819

申请日：1996-01-02

申请人： Robert W. Bruce ,  Jon C. Schaeffer ,  Mark A. Rosenzweig ,  Rudolfo Viguie ,  David V. Rigney ,  Antonio F. Maricocchi ,  David J. Wortman ,  Bangalore A. Nagaraj

发明人： Robert W. Bruce ,  Jon C. Schaeffer ,  Mark A. Rosenzweig ,  Rudolfo Viguie ,  David V. Rigney ,  Antonio F. Maricocchi ,  David J. Wortman ,  Bangalore A. Nagaraj

IPC分类号： C23C14/06 ,  C23C14/08 ,  C23C28/00 ,  C23C28/04 ,  B32B15/04

CPC分类号： C23C28/00

摘要： A thermal barrier coating adapted to be formed on an article subjected to a hostile thermal environment while subjected to erosion by particles and debris, as is the case with turbine, combustor and augmentor components of a gas turbine engine. The thermal barrier coating is composed of a metallic bond layer deposited on the surface of the article, a ceramic layer overlaying the bond layer, and an erosion-resistant composition dispersed within or overlaying the ceramic layer. The bond layer serves to tenaciously adhere the thermal insulating ceramic layer to the article, while the erosion-resistant composition renders the ceramic layer more resistant to erosion. The erosion-resistant composition is either alumina (Al.sub.2 O.sub.3) or silicon carbide (SiC), while a preferred ceramic layer is yttria-stabilized zirconia (YSZ) deposited by a physical vapor deposition technique to have a columnar grain structure.

摘要翻译： 一种隔热涂层，适于形成在经受恶劣热环境的制品上，同时受到颗粒和碎屑的侵蚀，如同燃气涡轮发动机的涡轮机，燃烧器和增压器部件的情况。 隔热涂层由沉积在物品表面上的金属粘合层，覆盖粘合层的陶瓷层和分散在陶瓷层内或覆盖陶瓷层的抗侵蚀组合物构成。 接合层用于将绝热陶瓷层牢固地粘附到制品上，而抗侵蚀组合物使得陶瓷层更耐侵蚀。 抗侵蚀组合物是氧化铝（Al 2 O 3）或碳化硅（SiC），而优选的陶瓷层是通过物理气相沉积技术沉积的具有柱状晶粒结构的氧化钇稳定的氧化锆（YSZ）。

公开(公告)号：US5419971A

公开(公告)日：1995-05-30

申请号：US025455

申请日：1993-03-03

申请人： David W. Skelly ,  Bangalore A. Nagaraj ,  David J. Wortman ,  David V. Rigney ,  Seetha R. Mannava ,  Rudolfo Viguie ,  Robert W. Bruce ,  Warren A. Nelson ,  Curtis A. Johnson ,  Bhupendra K. Gupta

发明人： David W. Skelly ,  Bangalore A. Nagaraj ,  David J. Wortman ,  David V. Rigney ,  Seetha R. Mannava ,  Rudolfo Viguie ,  Robert W. Bruce ,  Warren A. Nelson ,  Curtis A. Johnson ,  Bhupendra K. Gupta

IPC分类号： C23C4/02 ,  F01D5/28 ,  B32B3/30

CPC分类号： F01D5/288 ,  C23C4/02 ,  Y02T50/67 ,  Y02T50/671 ,  Y10T428/12472 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/12993 ,  Y10T428/24521 ,  Y10T428/24545 ,  Y10T428/24612

摘要： An article having a substrate is protected by a thermal barrier coating system. An interfacial layer contacts the upper surface of the substrate. The interfacial layer may comprise a bond coat only, or a bond coat and an overlay coat. The interfacial layer has on its upper surface a preselected, controllable pattern of three-dimensional features, such as grooves in a parallel array or in two angularly offset arrays. The features are formed by an ablation process using an ultraviolet laser such as an excimer laser. A ceramic thermal barrier coating is deposited over the pattern of features on the upper surface of the interfacial layer.

摘要翻译： 具有基底的制品由热障涂层系统保护。 界面层接触基板的上表面。 界面层可以仅包含粘结层，或者粘合涂层和覆盖层。 界面层在其上表面上具有三维特征的预选的可控模式，例如平行排列的凹槽或两个角度偏移的阵列。 特征通过使用诸如准分子激光器的紫外激光的消融处理形成。 陶瓷热障涂层沉积在界面层上表面上的特征图案上。

公开(公告)号：US5683761A

公开(公告)日：1997-11-04

申请号：US450647

申请日：1995-05-25

申请人： Robert W. Bruce ,  Mark A. Rosenzweig ,  Bangalore A. Nagaraj ,  Jon C. Schaeffer ,  William B. Connor ,  David J. Wortman

发明人： Robert W. Bruce ,  Mark A. Rosenzweig ,  Bangalore A. Nagaraj ,  Jon C. Schaeffer ,  William B. Connor ,  David J. Wortman

IPC分类号： C23C4/02 ,  C23C14/02 ,  C23C14/08 ,  C23C28/00 ,  F01D5/28 ,  C23C16/40

CPC分类号： C23C28/345 ,  C23C14/025 ,  C23C14/081 ,  C23C28/321 ,  C23C28/3455 ,  C23C4/02 ,  F01D5/288 ,  Y02T50/67 ,  Y02T50/671

摘要： A bond-coated substrate is protected with an alpha alumina layer. The alpha alumina layer may be deposited as a relatively thick layer directly onto the bond-coated substrate. In this embodiment, no further ceramic layer overlies the alpha alumina layer. Other ceramics may be mixed into the alpha alumina layer, however. In another embodiment, a layer of a ceramic other than alpha alumina is deposited over the bond-coated substrate, and an alpha alumina layer is deposited over the ceramic layer.

摘要翻译： 用α氧化铝层保护键合的基底。 可以将α氧化铝层作为相对较厚的层直接沉积到粘结涂覆的基底上。 在该实施例中，没有另外的陶瓷层覆盖在α氧化铝层上。 然而，其他陶瓷可以混合到α氧化铝层中。 在另一个实施方案中，除了α氧化铝之外的陶瓷层沉积在粘合涂覆的基底上，并且在氧化铝层上沉积α氧化铝层。

公开(公告)号：US6042880A

公开(公告)日：2000-03-28

申请号：US219163

申请日：1998-12-22

申请人： Joseph D. Rigney ,  Jeffrey A. Conner ,  David J. Wortman ,  Bangalore A. Nagaraj

发明人： Joseph D. Rigney ,  Jeffrey A. Conner ,  David J. Wortman ,  Bangalore A. Nagaraj

IPC分类号： C23C4/10 ,  C23C10/60 ,  C23C28/00 ,  F01D5/28 ,  B32B35/00

CPC分类号： C23C28/3215 ,  C23C10/60 ,  C23C28/321 ,  C23C28/325 ,  C23C28/3455 ,  F01D5/288 ,  Y10T29/49318

摘要： A thermal barrier coating (TBC) system, comprising a metallic bond coat on an article surface and an outer ceramic TBC is repaired by renewing without removing the bond coat. The outer ceramic TBC is removed to expose a bond coat substrate. At least one discrete local surface area of the article surface subject to bond coat degradation is selected from a thermal pattern unique to the article surface from service operation. At least one renewal metal selected from Pt, Rh, and Pd is applied at least to the selected discrete local surface area and heated to diffuse the renewal metal into the bond coat substrate. An environmental resistant coating selected from aluminides and alloys including aluminum is applied at least to the discrete local surface area over the renewal metal. Thereafter, an outer ceramic TBC is applied to the article surface.

摘要翻译： 包含物品表面上的金属粘合涂层和外部陶瓷TBC的热障涂层（TBC）系统通过更新而不去除粘结涂层来修复。 去除外部陶瓷TBC以暴露粘合涂层基底。 经受粘合涂层降解的制品表面的至少一个不连续的局部表面区域选自从服务操作到制品表面特有的热图案。 将至少一种选自Pt，Rh和Pd的更新金属至少施加到所选择的离散局部表面区域，并加热以将更新金属扩散到粘合涂层基底中。 选自铝化物和包括铝的合金的耐环境涂层至少施加到再生金属上的离散局部表面积上。 此后，将外部陶瓷TBC施加到制品表面。

公开(公告)号：US5427866A

公开(公告)日：1995-06-27

申请号：US218167

申请日：1994-03-28

申请人： Bangalore A. Nagaraj ,  William B. Connor ,  Richard W. Jendrix ,  David J. Wortman ,  Larry W. Plemmons

发明人： Bangalore A. Nagaraj ,  William B. Connor ,  Richard W. Jendrix ,  David J. Wortman ,  Larry W. Plemmons

IPC分类号： B32B15/01 ,  B32B15/04 ,  B63H1/26

CPC分类号： B32B15/01 ,  Y10T428/12458 ,  Y10T428/1259 ,  Y10T428/12618 ,  Y10T428/12875 ,  Y10T428/12931

摘要： A coated article comprises a base article having a substrate made of a material selected from the group consisting of a nickel-base alloy and a cobalt-base alloy, an intermediate metallic coating structure, and a thermal barrier coating. The intermediate metallic coating structure may be a protective layer of platinum, rhodium, or palladium on the base article, with no bond coat. The intermediate metallic coating may also be a bond coat, either oxidized or unoxidized, with a protective layer of platinum, rhodium, or palladium thereon. The protective layer typically partially interdiffuses with the underlying metallic structure.

摘要翻译： 涂覆制品包括具有由选自镍基合金和钴基合金，中间金属涂层结构和热障涂层的材料制成的基底的基底制品。 中间金属涂层结构可以是基底制品上的铂，铑或钯的保护层，没有粘结层。 中间金属涂层也可以是氧化或未氧化的粘合涂层，其上具有铂，铑或钯的保护层。 保护层通常与下面的金属结构部分地相互扩散。

公开(公告)号：US07666528B2

公开(公告)日：2010-02-23

申请号：US12317032

申请日：2008-12-17

申请人： Brian Thomas Hazel ,  Mark Gorman ,  Bangalore A. Nagaraj

发明人： Brian Thomas Hazel ,  Mark Gorman ,  Bangalore A. Nagaraj

IPC分类号： B32B9/04 ,  B32B15/00

CPC分类号： C23C26/00 ,  C23C28/3215 ,  C23C28/3455 ,  C23C30/00 ,  F01D5/284 ,  F01D5/288 ,  F05D2230/31 ,  F05D2260/95 ,  Y02T50/67

摘要： According to an embodiment of the invention, an article of manufacture for use in a gas turbine engine is disclosed. The article comprises a part having a surface covered with a ceramic thermal barrier coating. The thermal barrier coating has an outer surface covered with a sacrificial phosphate coating, wherein the sacrificial phosphate coating reacts with contaminant compositions to prevent contaminant infiltration into the thermal barrier coating.

摘要翻译： 根据本发明的实施例，公开了一种用于燃气涡轮发动机的制品。 该制品包括具有覆盖有陶瓷热障涂层的表面的部分。 热障涂层具有覆盖有牺牲磷酸盐涂层的外表面，其中牺牲磷酸盐涂层与污染物组合物反应以防止污染物渗透到热障涂层中。

公开(公告)号：US20080292803A1

公开(公告)日：2008-11-27

申请号：US11903096

申请日：2007-09-20

申请人： Bangalore A. Nagaraj ,  Irene Spitsberg ,  Christine Govern ,  Brian Thomas Hazel

发明人： Bangalore A. Nagaraj ,  Irene Spitsberg ,  Christine Govern ,  Brian Thomas Hazel

IPC分类号： B05D1/36

CPC分类号： C04B41/89 ,  C04B41/009 ,  C04B41/52 ,  C23C28/042 ,  C23C28/322 ,  C23C28/345 ,  C23C28/3455 ,  C04B41/5096 ,  C04B41/5035 ,  C04B41/522 ,  C04B41/4527 ,  C04B41/5024 ,  C04B41/5037 ,  C04B41/5042 ,  C04B2111/00405 ,  C04B41/5044 ,  C04B35/565 ,  C04B35/806

摘要： In accordance with an embodiment of the invention, a thermal barrier coating for inclusion in a thermal barrier coating/environmental barrier coating system (TBC/EBC system) for use on a silicon based substrate is disclosed. The thermal barrier coating comprising up to about 9 mol percent of a stabilizer and up to 91 mol percent of primary oxide selected from the group consisting of zirconia, hafnia and mixtures thereof. The stabilizer comprises: a first metal oxide selected from the group consisting of yttria, calcia, ceria, scandia, magnesia, india and mixtures thereof, a second metal oxide of a trivalent metal atom selected from the group consisting of lanthana, gadolinia, neodymia, samaria, dysprosia, ytterbia, erbia, and mixtures thereof. The first metal oxide is in an amount of from about 3 to about 5 mol %, the second metal oxide is in an amount of from about 0.25 to about 6 mol %.

摘要翻译： 根据本发明的一个实施例，公开了一种用于包含在用于硅基衬底的隔热涂层/环境阻挡涂层系统（TBC / EBC系统）中的热障涂层。 所述热障涂层包括高达约9mol％的稳定剂和至多91mol％的选自氧化锆，铪的主要氧化物及其混合物。 稳定剂包括：选自氧化钇，氧化钙，二氧化铈，钪，氧化镁，印度及其混合物的第一金属氧化物，选自氧化镧，氧化钆，氧化钕， samaria，dysprosia，ytterbia，erbia及其混合物。 第一金属氧化物的量为约3至约5mol％，第二金属氧化物的量为约0.25至约6mol％。

公开(公告)号：US06926496B2

公开(公告)日：2005-08-09

申请号：US10335486

申请日：2002-12-31

申请人： John F. Ackermann ,  Paul V. Arszman ,  Bangalore A. Nagaraj

发明人： John F. Ackermann ,  Paul V. Arszman ,  Bangalore A. Nagaraj

IPC分类号： F01D5/28 ,  F01D9/02 ,  F02C7/00 ,  F02K3/10 ,  F23M5/00 ,  F23R3/00 ,  F23R3/18 ,  F23R3/42

CPC分类号： F23M5/00 ,  F23M2900/05004 ,  F23R3/002 ,  Y02T50/67

摘要： A high temperature gas turbine component for use in the gas flow path that also is a specular optical reflector. A thin layer of a high temperature reflector is applied to the gas flow path of the component, that is, the surface of the component that forms a boundary for hot combustion gases. The component typically includes a thermal barrier coating overlying the high temperature metallic component that permits the component to operate at elevated temperatures. The thermal barrier coating must be polished in order to provide a surface that can suitably reflect the radiation into the gas flow path. A thin layer of the high temperature reflector the is applied over the polished thermal barrier coating by a process that can adequately adhere the reflector to the polished surface without increasing the roughness of the surface. The high temperature reflector can be applied to any surface aft of the compressor, such as on a turbine nozzle. The surface reflects radiation back into the hot gas flow path. The reflected radiation is not focused onto any other hardware component. The design of the component is such that the radiation is returned to the gas flow path rather than absorbed into a component wall that only serves to increase the temperature of the wall.

摘要翻译： 用于气体流路的高温燃气轮机部件，其也是镜面光学反射器。 将高温反射器的薄层施加到部件的气体流动路径，即构成热燃烧气体边界的部件的表面。 该部件通常包括覆盖高温金属部件的热障涂层，其允许部件在升高的温度下操作。 必须抛光热障涂层，以便提供可以适当地将辐射反射到气体流动路径中的表面。 通过能够将反射器充分地粘附到抛光表面而不增加表面粗糙度的工艺，将高温反射体的薄层施加在抛光的热障涂层上。 高温反射器可以应用于压缩机后面的任何表面，例如在涡轮喷嘴上。 该表面将辐射反射回热气流路径。 反射的辐射没有集中在任何其他硬件组件上。 部件的设计使得辐射返回到气体流动路径而不是被吸收到仅用于增加壁的温度的部件壁中。

公开(公告)号：US06485791B1

公开(公告)日：2002-11-26

申请号：US09544041

申请日：2000-04-06

申请人： Bangalore A. Nagaraj

发明人： Bangalore A. Nagaraj

IPC分类号： C23C1430

CPC分类号： C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  C23C28/04 ,  C04B41/4529 ,  C04B41/5035 ,  C04B41/53 ,  C04B41/5031 ,  C04B41/522 ,  C04B41/0072 ,  C04B41/5037 ,  C04B41/5042 ,  C04B35/565 ,  C04B35/584 ,  C04B35/806

摘要： Improved adhesion of thermal barrier coatings to nonmetallic substrates using a dense layer of ceramic on an underlying nonmetallic substrate that includes at least one oxidizable component. The improved adhesion occurs because the application of the dense ceramic layer forms a diffusion barrier for oxygen. This diffusion barrier prevents the oxidizable component of the substrate from decomposing. The present invention applies ceramic by a process that deposits a relatively thick and dense ceramic layer on the underlying substrate. The formation of the dense layer of ceramic avoids the problem of void formation associated with ceramic formation by most prior art thermal decomposition processes. The formation of voids has been associated with premature spalling of thermal barrier layers and other protective layers applied to substrates.

摘要翻译： 使用包含至少一种可氧化组分的下层非金属基底上的致密陶瓷层来改善热障涂层对非金属基底的粘合性。 由于应用致密的陶瓷层形成氧的扩散阻挡层，所以发生改善的粘附。 该扩散阻挡层防止基底的可氧化成分分解。 本发明通过在下面的衬底上沉积相对厚且致密的陶瓷层的方法来应用陶瓷。 通过大多数现有技术的热分解过程，陶瓷致密层的形成避免了与陶瓷形成相关的空隙形成的问题。 空隙的形成已经与施加到基底上的热障层和其它保护层的过早剥落有关。