公开(公告)号：US20050003172A1

公开(公告)日：2005-01-06

申请号：US10895886

申请日：2004-07-22

申请人： James Wheeler ,  Farshad Ghasripoor ,  Chek Beng Ng ,  Raymond Chupp ,  Donald Baldwin ,  Yuk-Chiu Lau ,  Tara McGovern

发明人： James Wheeler ,  Farshad Ghasripoor ,  Chek Beng Ng ,  Raymond Chupp ,  Donald Baldwin ,  Yuk-Chiu Lau ,  Tara McGovern

IPC分类号： C23C4/00 ,  B05D3/02 ,  B32B3/00

CPC分类号： F01D11/122 ,  C23C4/01 ,  C23C4/02 ,  C23C4/04 ,  C23C4/11 ,  C23C4/134 ,  C23C4/18 ,  C23C4/185 ,  F05D2230/312 ,  F05D2250/183 ,  F05D2300/15 ,  Y10T428/12611 ,  Y10T428/24802 ,  Y10T428/24926

摘要： A method of applying a profiled abradable coating onto a substrate in which an abradable ceramic coating composition is applied to a metal substrate using one or more coating application techniques to produce a defined ceramic pattern without requiring a separate web or grid to be brazed onto the substrate. The invention is particularly designed to withstand the higher operating temperatures encountered with the stage 1 section of 7FA+e gas turbines to allow for increased coating life without significant deterioration in structural or functional integrity. Typically, the grid pattern coating begins approximately 0.431″ after the leading edge of the shroud, and ends approximately 1.60″ before the trailing edge of the shroud. In the case of diamond-shaped patterns, the grid pattern will be about 0.28″ long and 0.28″ wide, with an overall thickness of about 0.46.″ The coatings thus provide the required levels of abradability and leakage performance and may be applied as a chevron or diamond pattern with the shape oriented such that the diagonals run perpendicular and parallel to the sides of the shroud.

摘要翻译： 将成型的可磨损涂层施加到基底上，其中使用一种或多种涂覆施加技术将可磨损的陶瓷涂层组合物施加到金属基底上以产生限定的陶瓷图案，而不需要将单独的腹板或网格钎焊到基底上 。 本发明特别设计用于承受7FA + e燃气轮机的阶段1部分遇到的更高的工作温度，以允许更长的涂层寿命，而结构或功能完整性没有显着恶化。 通常，网格图案涂层在护罩的前缘大约0.431“开始，并且在护罩的后缘之前大约为1.60”。 在菱形图案的情况下，网格图案将为约0.28“长和0.28”宽，总厚度约为0.46“。因此，涂层提供所需的耐磨性和泄漏性能水平，并且可能 应用为人字形或菱形图案，其形状定向成使得对角线垂直并平行于护罩的侧面延伸。

公开(公告)号：US20050164027A1

公开(公告)日：2005-07-28

申请号：US11033813

申请日：2005-01-13

申请人： Yuk-Chiu Lau ,  Farshad Ghasripoor ,  Robert Fusaro ,  Raymond Chupp ,  Donald Baldwin ,  Canan Hardwicke

发明人： Yuk-Chiu Lau ,  Farshad Ghasripoor ,  Robert Fusaro ,  Raymond Chupp ,  Donald Baldwin ,  Canan Hardwicke

IPC分类号： C23C4/00 ,  B05D1/08 ,  F03B3/12

CPC分类号： C23C4/01 ,  Y10T428/12611

摘要： Method of producing a profiled abradable coating on a substrate in which an abradable ceramic coating composition is applied to a substrate using direct-write technology, or plasma sprayed onto the substrate through a mask or by use of a narrow foot-print plasma gun. These methods of producing abradable coatings are performed in the absence of a grid.

公开(公告)号：US06660405B2

公开(公告)日：2003-12-09

申请号：US09863760

申请日：2001-05-24

申请人： Yuk-Chiu Lau ,  Farshad Ghasripoor ,  Dennis M. Gray ,  Chek Beng Ng

发明人： Yuk-Chiu Lau ,  Farshad Ghasripoor ,  Dennis M. Gray ,  Chek Beng Ng

IPC分类号： B32B518

CPC分类号： C23C4/02 ,  C23C4/04 ,  Y10T428/12479 ,  Y10T428/12736 ,  Y10T428/1275 ,  Y10T428/12771 ,  Y10T428/12931 ,  Y10T428/12944 ,  Y10T428/12951 ,  Y10T428/249953

摘要： An abradable coating composition for use on shrouds in gas turbine engines (or other hot gas path metal components exposed to high temperatures) containing an initial porous coating phase created by adding a “fugitive polymer” (such as polyester or polyimide) to the base metal alloy, together with a brittle intermetallic phase such as &bgr;-NiAl that serves to increase the brittle nature of the metal matrix, thereby increasing the abradability of the coating at elevated temperatures, and to improve the oxidation resistance of the coating at elevated temperatures. Coatings having about 12 wt % polyester has been found to exhibit excellent abradability for applications involving turbine shroud coatings. An abradable coating thickness in the range of between 40 and 60 ml provides the best performance for turbine shrouds exposed to gas temperatures between 1380° F. and 1850° F. Abradable coatings in accordance with the invention can be used for new metal components or to repair existing equipment.

摘要翻译： 一种用于燃气涡轮发动机（或暴露于高温的其它热气体通道金属组分）的护罩上的耐磨涂层组合物，其包含通过向基体金属添加“短暂性聚合物”（例如聚酯或聚酰亚胺）而产生的初始多孔涂层相 合金，以及诸如β-NiAl的脆性金属间相，其用于增加金属基体的脆性，从而提高涂层在高温下的耐磨性，并提高涂层在高温下的抗氧化性。 已经发现具有约12重量％聚酯的涂层对于涉及涡轮机护罩涂层的应用表现出优异的耐磨性。 40至60毫升范围内的可磨损涂层厚度为暴露于1380°F至1850°F之间的气体温度的涡轮机罩提供了最佳性能。根据本发明的可磨损涂层可用于新的金属组分或 修理现有设备。

公开(公告)号：US06887528B2

公开(公告)日：2005-05-03

申请号：US10320480

申请日：2002-12-17

申请人： Yuk-Chiu Lau ,  Farshad Ghasripoor ,  Robert Anthony Fusaro, Jr. ,  Raymond Edward Chupp ,  Donald Joseph Baldwin ,  Canan Uslu Hardwicke

发明人： Yuk-Chiu Lau ,  Farshad Ghasripoor ,  Robert Anthony Fusaro, Jr. ,  Raymond Edward Chupp ,  Donald Joseph Baldwin ,  Canan Uslu Hardwicke

IPC分类号： C23C4/00 ,  C23C4/02 ,  C23C4/04

CPC分类号： C23C4/01 ,  Y10T428/12611

摘要： Method of producing a profiled abradable coating on a substrate in which an abradable ceramic coating composition is applied to a substrate using direct-write technology, or plasma sprayed onto the substrate through a mask or by use of a narrow foot-print plasma gun. These methods of producing abradable coatings are performed in the absence of a grid.

摘要翻译： 在基板上制造成型耐磨涂层的方法，其中使用直接写入技术将可磨损陶瓷涂层组合物施加到基板上，或者通过掩模或通过使用窄脚印等离子体枪喷涂到基板上。 这些生产可磨损涂层的方法是在不存在网格的情况下进行的。

公开(公告)号：US06916529B2

公开(公告)日：2005-07-12

申请号：US10338671

申请日：2003-01-09

申请人： Surinder Singh Pabla ,  Farshad Ghasripoor ,  Yuk-Chiu Lau ,  Liang Jiang ,  Canan Uslu Hardwicke ,  William Emerson Martinez Zegarra

发明人： Surinder Singh Pabla ,  Farshad Ghasripoor ,  Yuk-Chiu Lau ,  Liang Jiang ,  Canan Uslu Hardwicke ,  William Emerson Martinez Zegarra

IPC分类号： C23C4/02 ,  C23C4/06 ,  C23C24/08 ,  C23C24/10 ,  C23C28/00 ,  C23C30/00 ,  F01D11/12 ,  B32B15/04 ,  B32B3/26 ,  F03B3/12

CPC分类号： C23C4/02 ,  C23C4/06 ,  C23C24/08 ,  C23C24/10 ,  C23C28/00 ,  C23C30/00 ,  F01D11/12 ,  F01D11/127 ,  Y02T50/67 ,  Y02T50/672 ,  Y10T428/12736 ,  Y10T428/12771 ,  Y10T428/12944 ,  Y10T428/249953 ,  Y10T428/249967 ,  Y10T428/249969 ,  Y10T428/24997 ,  Y10T428/249971 ,  Y10T428/249976 ,  Y10T428/249977 ,  Y10T428/249987 ,  Y10T428/252 ,  Y10T428/264

摘要： An abradable coating composition for use on shrouds in gas turbine engines or other hot gas path metal components exposed to high temperatures containing an initial porous coating phase created by adding an amount of inorganic microspheres, preferably alumina-ceramic microballoons, to a base metal alloy containing high Al, Cr or Ti such as β-NiAl or, alternatively, MCrAlY that serves to increase the brittle nature of the metal matrix, thereby increasing the abradability and oxidation resistance of the coating at elevated temperatures. Coatings having a total open and closed porosity of between 20% and 55% by volume due to the presence of ceramic microballoons ranging in size from about 10 microns to about 200 microns have been found to exhibit excellent abradability for applications involving turbine shroud coatings. An abradable coating thickness in the range of between 40 and 60 ml provides improved performance for turbine shrouds exposed to gas temperatures between 1380° F. and 1800° F. Abradable coatings in accordance with the invention can be used for new metal components or to repair existing equipment. The coatings can be applied to the metal shroud using thermal spray, processes that integrate sintering and brazing, or direct write techniques.

摘要翻译： 一种用于燃气轮机发动机或暴露于高温下的其它热气路径金属组件的护套的可磨损涂料组合物，其含有初始多孔涂层相，其通过将一定量的无机微球（优选氧化铝陶瓷微球）加入到含有 高Al，Cr或Ti，例如β-NiAl，或者MCrAlY，其用于增加金属基体的脆性，从而提高涂层在升高的温度下的耐磨性和耐氧化性。 已经发现，由于存在尺寸为约10微米至约200微米的陶瓷微球，具有20体积％至55体积％的总开放和闭孔率的涂层对涉及涡轮机护罩涂层的应用表现出优异的耐磨性。 在40至60毫升范围内的可磨损涂层厚度为暴露于1380°F至1800°F之间的气体温度的涡轮机罩提供了改进的性能。根据本发明的可磨损涂层可用于新的金属部件或修复 现有设备。 涂层可以使用热喷涂应用于金属外壳，整合烧结和钎焊的工艺，或直接写入技术。

公开(公告)号：US08067098B2

公开(公告)日：2011-11-29

申请号：US12411801

申请日：2009-03-26

申请人： David A. Helmick ,  Yuk-Chiu Lau ,  David Vincent Bucci

发明人： David A. Helmick ,  Yuk-Chiu Lau ,  David Vincent Bucci

IPC分类号： B32B15/00 ,  B32B15/04 ,  F23D11/00 ,  F23D11/38

CPC分类号： C23C30/00 ,  C23C14/16 ,  C23C26/00 ,  F05C2201/0409 ,  Y10T428/1266 ,  Y10T428/12826 ,  Y10T428/12931 ,  Y10T428/12944 ,  Y10T428/26 ,  Y10T428/31678

摘要： A coating system and process for protecting component surfaces exposed to sulfur-containing environments at elevated temperatures. The coating system includes a sulfidation-resistant overlay coating that is predominantly niobium or molybdenum.

摘要翻译： 涂层系统和用于在升高的温度下保护暴露于含硫环境的组分表面的方法。 涂层系统包括主要是铌或钼的耐硫化覆盖涂层。

公开(公告)号：US20110217568A1

公开(公告)日：2011-09-08

申请号：US12718151

申请日：2010-03-05

申请人： Vinod Kumar Pareek ,  Yuk-Chiu Lau ,  Joshua Lee Margolies ,  Michel Marie Moliere ,  Dmitry Sokolov

发明人： Vinod Kumar Pareek ,  Yuk-Chiu Lau ,  Joshua Lee Margolies ,  Michel Marie Moliere ,  Dmitry Sokolov

IPC分类号： B32B15/04 ,  B32B9/04 ,  B32B5/00 ,  B32B5/16 ,  B32B15/00

CPC分类号： C23C28/00 ,  C23C4/06 ,  C23C4/11 ,  F01D5/288 ,  F04D29/023 ,  F04D29/324 ,  F05C2201/0466 ,  F05D2230/312 ,  F05D2230/90 ,  F05D2300/21 ,  F05D2300/212 ,  F05D2300/6111 ,  Y10T428/12778 ,  Y10T428/257 ,  Y10T428/26 ,  Y10T428/31678

摘要： An article comprises a first outer layer; a second intermediate layer; and a substrate; wherein the second intermediate layer contacts the first outer layer at a first interface and the substrate at a second interface. The first outer layer comprises Al2O3—TiO2 and the second intermediate layer comprises a functionally graded material. The functionally graded material comprises a composition proximate the first interface being substantially free of Al2O3—TiO2 and at the second interface having Al2O3—TiO2 in amounts substantially equal to the first outer layer.

摘要翻译： 一种制品包括第一外层; 第二中间层; 和基材; 其中所述第二中间层在第一界面处接触所述第一外层并且所述基板在第二界面处接触。 第一外层包括Al2O3-TiO2，第二中间层包括功能梯度材料。 功能梯度材料包括基本上不含Al 2 O 3 -TiO 2的第一界面附近的组合物和在基本上等于第一外层的量的Al 2 O 3 -TiO 2的第二界面处。

公开(公告)号：US06866897B2

公开(公告)日：2005-03-15

申请号：US10065260

申请日：2002-09-30

申请人： Hongyu Wang ,  David Joseph Mitchell ,  Yuk-Chiu Lau ,  Arnold Thomas Henry

发明人： Hongyu Wang ,  David Joseph Mitchell ,  Yuk-Chiu Lau ,  Arnold Thomas Henry

IPC分类号： C23C4/02 ,  C23C4/10 ,  C23C4/12 ,  C23C4/18 ,  C23C28/00 ,  C23C28/04 ,  C23C30/00

CPC分类号： C04B41/87 ,  C04B41/009 ,  C04B41/5024 ,  C04B41/52 ,  C04B41/89 ,  C23C4/02 ,  C23C4/11 ,  C23C4/12 ,  C23C4/18 ,  C23C28/04 ,  C23C28/042 ,  C23C30/00 ,  F28F19/02 ,  Y10T428/24471 ,  C04B41/4527 ,  C04B41/5096 ,  C04B41/5037 ,  C04B41/0072 ,  C04B35/565 ,  C04B35/581 ,  C04B35/806

摘要： A method for manufacturing an article for use in a high-temperature environment, and an article for use in such an environment, are presented. The method comprises providing a substrate; selecting a desired vertical crack density for a protective coating to be deposited on the substrate; providing a powder, wherein the powder has a size range selected to provide a coating having the desired vertical crack density; and applying a thermal-sprayed coating to the substrate, the coating having the desired vertical crack density, wherein the powder is used as a raw material for the coating.

摘要翻译： 本发明提供一种制造用于高温环境的制品的方法和用于这种环境的制品。 该方法包括提供基底; 选择要沉积在基底上的保护涂层的期望垂直裂纹密度; 提供粉末，其中所述粉末具有选择的尺寸范围以提供具有期望的垂直裂纹密度的涂层; 并将热喷涂层施加到所述基底上，所述涂层具有所需的垂直裂纹密度，其中所述粉末用作所述涂层的原料。

公开(公告)号：US06740364B2

公开(公告)日：2004-05-25

申请号：US10063967

申请日：2002-05-30

申请人： Yuk-Chiu Lau ,  Hongyu Wang ,  David Joseph Mitchell

发明人： Yuk-Chiu Lau ,  Hongyu Wang ,  David Joseph Mitchell

IPC分类号： C23C410

CPC分类号： C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  C23C4/02 ,  C23C4/12 ,  C23C28/04 ,  C23C28/042 ,  C23C28/048 ,  F01D5/288 ,  F05D2230/90 ,  F05D2300/611 ,  C04B41/4527 ,  C04B41/5096 ,  C04B41/5037 ,  C04B41/5024 ,  C04B41/5042 ,  C04B2111/00405 ,  C04B41/522 ,  C04B41/0072 ,  C04B35/565 ,  C04B35/584 ,  C04B35/806

摘要： A process for depositing a ceramic coating system for Si-containing materials, particularly those for articles exposed to high temperatures. The process is particularly applicable to depositing a compositionally-graded coating system comprising multiple ceramic layers with differing compositions, including a dense, strain-tolerant, vertically-cracked YSZ-containing ceramic layer deposited on a ceramic layer having a composition that is a mixture of YSZ and either mullite or BSAS. The process entails depositing the YSZ-containing ceramic layer using a plasma spraying technique while maintaining the substrate at a temperature so as not to form horizontal cracks in the coating system, but still maintain the dense vertically-cracked structure of the YSZ-containing ceramic layer for strain tolerance.

摘要翻译： 用于沉积用于含Si材料的陶瓷涂层系统的方法，特别是暴露于高温的制品的方法。 该方法特别适用于沉积包含具有不同组成的多个陶瓷层的组成分级的涂层体系，包括沉积在陶瓷层上的致密的耐应变的垂直裂纹的含YSZ陶瓷层，该陶瓷层的组成为 YSZ和莫来石或BSAS。 该方法需要使用等离子喷涂技术沉积含YSZ的陶瓷层，同时将基材保持在不会在涂布体系中形成水平裂纹的温度，但仍保持含YSZ的陶瓷层的致密的垂直裂纹结构 用于应变公差。

公开(公告)号：US06274201B1

公开(公告)日：2001-08-14

申请号：US09558258

申请日：2000-04-25

申请人： Marcus Preston Borom ,  Dennis Michael Gray ,  Yuk-Chiu Lau ,  Surinder Singh Pabla

发明人： Marcus Preston Borom ,  Dennis Michael Gray ,  Yuk-Chiu Lau ,  Surinder Singh Pabla

IPC分类号： C23C404

CPC分类号： C23C28/3215 ,  C23C4/02 ,  C23C28/325 ,  C23C28/345 ,  C23C28/3455 ,  Y02T50/67 ,  Y10S428/937 ,  Y10T428/12458 ,  Y10T428/12479 ,  Y10T428/12618 ,  Y10T428/12861 ,  Y10T428/12931

摘要： An article is described, which includes a metal-based substrate, such as a superalloy; a dense, primary bond layer; and a spongy secondary bond layer. A thermal barrier coating is applied over the secondary bond layer. The spongy layer has a microstructure which includes an open network of interconnected pores. A process is also described. It includes the step of applying a spongy, metallic bond layer over the substrate, followed by the application of a thermal barrier coating. A dense, primary bond layer may optionally be applied before the application of the spongy layer.

摘要翻译： 描述了一种制品，其包括金属基底，例如超级合金; 致密的主键层; 和海绵状二次键合层。 在二次接合层上施加热障涂层。 海绵层具有包括互连孔的开放网络的微结构。 还描述了一个过程。 它包括在衬底上施加海绵状金属粘合层，然后施加热障涂层的步骤。 在施加海绵层之前，可以任选地施加致密的主键层。