公开(公告)号：US09869188B2

公开(公告)日：2018-01-16

申请号：US14568203

申请日：2014-12-12

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Kristen Hall Brosnan ,  Shahana Chatterjee ,  Wayne Charles Hasz ,  Mohandas Nayak ,  Digamber Gurudas Porob ,  Gopi Chandran Ramachandran ,  Larry Steven Rosenzweig ,  Shankar Sivaramakrishnan ,  Alok Mani Srivastava ,  Venkat Subramaniam Venkataramani

IPC: C23C4/12 ,  F01D9/02 ,  F02C7/24 ,  F01D5/28 ,  F02C7/30 ,  B05D3/04 ,  B05D3/02 ,  B05D1/28 ,  B05D7/24 ,  B05D7/14 ,  B05D7/22 ,  B05D1/18 ,  B05D5/00 ,  C23C28/00 ,  C04B41/89 ,  C04B41/00 ,  C04B41/52 ,  C23C18/12

CPC classification number: F01D5/288 ,  B05D1/18 ,  B05D1/28 ,  B05D3/0254 ,  B05D3/0493 ,  B05D5/00 ,  B05D7/14 ,  B05D7/142 ,  B05D7/22 ,  B05D7/24 ,  B05D2401/10 ,  B05D2401/20 ,  C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  C23C18/1216 ,  C23C18/1225 ,  C23C18/1254 ,  C23C28/3215 ,  C23C28/3455 ,  F01D9/02 ,  F02C7/24 ,  F02C7/30 ,  F05D2220/32 ,  F05D2230/30 ,  F05D2230/312 ,  F05D2230/90 ,  F05D2240/12 ,  F05D2240/30 ,  F05D2240/35 ,  F05D2260/95 ,  F05D2300/13 ,  F05D2300/15 ,  F05D2300/20 ,  F05D2300/21 ,  F05D2300/228 ,  F05D2300/30 ,  F05D2300/50 ,  F05D2300/605 ,  F05D2300/606 ,  C04B35/565 ,  C04B35/806 ,  C04B41/5096 ,  C04B41/5071 ,  C04B41/522 ,  C04B41/4582 ,  C04B41/5042 ,  C04B41/4515 ,  C04B41/4535 ,  C04B41/455 ,  C04B41/5031

Abstract: Articles having coatings that are resistant to high temperature degradation are described, along with methods for making such articles. The article comprises a coating disposed on a substrate. The coating comprises a plurality of elongated surface-connected voids. The article further includes a protective agent disposed within at least some of the voids of the coating; the protective agent comprises a substance capable of chemically reacting with liquid nominal CMAS to form a solid crystalline product outside the crystallization field of said nominal CMAS. This solid crystalline product has a melting temperature greater than about 1200 degrees Celsius. The method generally includes disposing the protective agent noted above within the surface connected voids of the coating at an effective concentration to substantially prevent incursion of CMAS materials into the voids in which the protective agent is disposed.

公开(公告)号：US10822696B2

公开(公告)日：2020-11-03

申请号：US15378232

申请日：2016-12-14

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Cathleen Ann Hoel ,  Kristen Hall Brosnan ,  Curtis Alan Johnson ,  Shankar Sivaramakrishnan

IPC: C23C4/00 ,  C23C16/455 ,  C09D1/00 ,  C04B35/48 ,  C04B35/622 ,  C23C4/18 ,  C23C4/11 ,  C04B41/52

Abstract: An article for service at high temperatures comprises a substrate comprising a first region and a second region; and a coating disposed over the substrate. The coating comprises a first portion disposed over the first region of the substrate and a second portion disposed over the second region of the substrate. The coating includes a layer comprising a ceramic material and further including a quantity of surface-connected voids, and a protective agent is disposed within at least some of the surface-connected voids of the layer. Within the first portion, the agent is present within the layer at a concentration of less than or equal to 4 percent by volume of the layer exclusive of the voids, while, within the second portion, the agent is present within the layer at a concentration up to the carrying capacity of the layer. Methods for forming the article are also presented.

公开(公告)号：US10265725B2

公开(公告)日：2019-04-23

申请号：US15368242

申请日：2016-12-02

Applicant: General Electric Company

Inventor： Ambarish Kulkarni ,  Byron Pritchard ,  Shankar Sivaramakrishnan ,  Krzysztof Lesnicki ,  Hrishikesh Keshavan ,  Bernard Patrick Bewlay ,  Mehmet Dede ,  Larry Rosenzweig ,  Jay Morgan

IPC: B05B1/14 ,  B05D1/02 ,  B05D5/00 ,  F01D5/00 ,  F01D5/28 ,  C23C24/08 ,  B05B7/02 ,  B05B7/06 ,  B05B7/10 ,  B05B7/14 ,  B05B7/16

Abstract: Systems and methods that provide or restore a coating to a component are provided. The systems and methods utilized an atomizing spray device. A slurry that comprises a fluid and ceramic particles, and a gas are supplied to the atomizing spray device. The slurry and gas are discharged from the spray device to form two-phase droplets. The fluid within the droplets evaporates to prevent the fluid from becoming part of the coating as the droplets traverse through the air and prior to impacting the surface of the component.

公开(公告)号：US09920417B2

公开(公告)日：2018-03-20

申请号：US14524072

申请日：2014-10-27

Applicant: General Electric Company

Inventor： Digamber Gurudas Porob ,  Shankar Sivaramakrishnan ,  Venkat Subramaniam Venkataramani ,  Mohandas Nayak ,  Gopi Chandran Ramachandran

IPC: F01D25/00 ,  C23C14/08 ,  C23C14/22 ,  C23C4/12 ,  C04B35/00 ,  C23C14/06 ,  C23C28/04 ,  C23C28/00 ,  C23C4/131 ,  C23C4/129 ,  C23C4/126 ,  C23C4/134

CPC classification number: C23C14/08 ,  C04B35/00 ,  C04B35/16 ,  C04B35/447 ,  C04B2235/3201 ,  C04B2235/3208 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3244 ,  C04B2235/3248 ,  C04B2235/3418 ,  C04B2235/80 ,  C23C4/126 ,  C23C4/129 ,  C23C4/131 ,  C23C4/134 ,  C23C14/06 ,  C23C28/042 ,  C23C28/321 ,  C23C28/3215 ,  C23C28/3455 ,  F05D2300/6111

Abstract: An article including a substrate and a plurality of coatings disposed on the substrate is presented. The plurality of coatings includes a thermal barrier coating disposed on the substrate; and a protective coating including a calcium-magnesium-aluminum-silicon-oxide (CMAS)-reactive material disposed on the thermal barrier coating. The CMAS-reactive material includes an NZP-type material. The CMAS-reactive material is present in the plurality of coatings in an effective amount to react with a CMAS composition at an operating temperature of the thermal barrier coating, thereby forming a reaction product having one or both of melting temperature and viscosity greater than that of the CMAS composition. A method of making the article and a related turbine engine component are also presented.

公开(公告)号：US20170101875A1

公开(公告)日：2017-04-13

申请号：US15384712

申请日：2016-12-20

Applicant: General Electric Company

Inventor： Larry Steven Rosenzweig ,  James Anthony Ruud ,  Shankar Sivaramakrishnan

IPC: F01D5/28 ,  F01D9/02 ,  C23C4/02 ,  C23C4/134 ,  C23C4/10

CPC classification number: F01D5/288 ,  C23C4/00 ,  C23C4/02 ,  C23C4/10 ,  C23C4/12 ,  C23C4/134 ,  C23C4/18 ,  F01D9/02 ,  F05D2220/32 ,  F05D2230/312 ,  F05D2240/35 ,  F05D2300/21 ,  F05D2300/502 ,  Y02T50/6765 ,  Y10T428/24355 ,  Y10T428/31

Abstract: A method for coating a surface of a substrate is provided. The method includes providing a suspension or a precursor comprising feedstock material suspended in a liquid medium. Further, the method includes spraying the suspension or the precursor onto the surface at a spray angle less than about 75 degrees to a tangent of the surface.

公开(公告)号：US20150159507A1

公开(公告)日：2015-06-11

申请号：US14098864

申请日：2013-12-06

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Shankar Sivaramakrishnan ,  Lauraine Denault ,  Larry Steven Rosenzweig

IPC: F01D25/00

CPC classification number: F01D5/288 ,  C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  C23C4/02 ,  C23C4/11 ,  C23C4/134 ,  C23C28/3215 ,  C23C28/3455 ,  Y02T50/672 ,  Y02T50/6765 ,  Y10T428/12361 ,  Y10T428/24314 ,  C04B35/565 ,  C04B35/806 ,  C04B41/5071 ,  C04B41/5096 ,  C04B41/522 ,  C04B41/5024 ,  C04B41/4582 ,  C04B2103/0021

Abstract: Articles for high temperature service, especially where enhanced strain tolerance coupled with resistance to ingested dust and debris (CMAS) is desirable, are provided herein. The article comprises a substrate and a multi-layered coating system disposed over the substrate. The coating system comprises a first layer comprising a first material and a second layer comprising a second material, with the first layer disposed between the second layer and the substrate. The second material is more resistant to infiltration by a nominal CMAS composition relative to 8 weight percent yttria-stabilized zirconia at a temperature of 1300 degrees Celsius. The second layer comprises a plurality of through-thickness cracks, wherein at least 90 percent of the cracks have a mean crack opening displacement, measured in a distal surface region, of up to about 5 micrometers.

Abstract translation: 具有耐高温性能的产品，特别是在增加耐应变性以及耐吸收性粉尘和碎屑（CMAS）的情况下，本文提供了这些。 该制品包括基底和设置在基底上的多层涂层系统。 该涂层系统包括包含第一材料的第一层和包含第二材料的第二层，其中第一层设置在第二层和衬底之间。 在1300摄氏度的温度下，第二种材料相对于8重量％的氧化钇稳定的氧化锆，更能抵抗标称CMAS组合物的渗透。 第二层包括多个贯穿厚度的裂缝，其中至少90％的裂纹具有高达约5微米的在远端表面区域中测得的平均裂纹开口位移。

公开(公告)号：US20190184423A1

公开(公告)日：2019-06-20

申请号：US16280563

申请日：2019-02-20

Applicant: General Electric Company

Inventor： Ambarish Kulkarni ,  Byron Pritchard ,  Shankar Sivaramakrishnan ,  Krzysztof Lesnicki ,  Hrishikesh Keshavan ,  Bernard Patrick Bewlay ,  Mehmet Dede ,  Larry Rosenzweig ,  Jay Morgan

IPC: B05D5/00 ,  C23C24/08 ,  F01D5/00 ,  B05B7/06 ,  F01D5/28 ,  B05B7/02 ,  B05B7/14 ,  B05B7/10

CPC classification number: B05D5/005 ,  B05B7/025 ,  B05B7/067 ,  B05B7/068 ,  B05B7/10 ,  B05B7/1431 ,  B05B7/1481 ,  B05B7/166 ,  C23C24/08 ,  F01D5/00 ,  F01D5/288 ,  F05D2230/312 ,  F05D2230/90

Abstract: Systems and methods that provide or restore a coating to a component are provided. The systems and methods utilized an atomizing spray device. A gas and a slurry that comprises fluid and ceramic particles are supplied to the atomizing spray device. The slurry and gas are discharged from the spray device to form two-phase droplets. The fluid within the droplets evaporates to prevent the fluid from becoming part of the coating as the droplets traverse through the air and prior to impacting the surface of the component.

公开(公告)号：US20180371923A1

公开(公告)日：2018-12-27

申请号：US15634196

申请日：2017-06-27

Applicant: General Electric Company

Inventor： Curtis Alan Johnson ,  Hrishikesh Keshavan ,  Shankar Sivaramakrishnan ,  Byron Andrew Pritchard, JR. ,  Hongqiang Chen ,  Bernard Patrick Bewlay

IPC: F01D5/28 ,  C04B35/48 ,  F01D9/02 ,  F01D25/08 ,  F23R3/00 ,  F01D5/18 ,  F01D25/12 ,  B23K26/364 ,  C04B35/505

Abstract: Methods for preparing slotted ceramic coatings and the resulting components comprising the same are provided. The methods and products include the incorporation of a coating system comprising a ceramic coating with cooling holes disposed throughout the ceramic coating and slots defined in the thermal barrier coating and disposed in relation to the cooling holes. The resulting ceramic coating has improved resistance to CMAS infiltration and improved compliance resulting in an increased life of the coated component.

公开(公告)号：US20170145836A1

公开(公告)日：2017-05-25

申请号：US14950718

申请日：2015-11-24

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Shankar Sivaramakrishnan ,  Larry Steven Rosenzweig

IPC: F01D5/28 ,  C23C4/134

CPC classification number: F01D5/288 ,  C23C4/073 ,  C23C4/11 ,  C23C4/134 ,  C23C28/3215 ,  C23C28/3455 ,  F05D2300/2118 ,  Y02T50/671 ,  Y02T50/6765

Abstract: An article having a damage-tolerant thermal barrier coating includes a plurality of coating layers disposed over a substrate. The plurality of coatings comprises an inner layer and an outer layer. The outer layer is more resistant to infiltration by nominal CMAS relative to 8 weight percent yttria-stabilized zirconia at a temperature of 1300 degrees Celsius. The inner layer has, in a temperature range from about 1000 degrees Celsius to about 1200 degrees Celsius, a thermal resistance in a range from about 9×10−5 degree Kelvin per watt to about 23×10−5 degree Kelvin per watt.

公开(公告)号：US20160168684A1

公开(公告)日：2016-06-16

申请号：US14568203

申请日：2014-12-12

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Kristen Hall Brosnan ,  Shahana Chaterjee ,  Wayne Charles Hasz ,  Mohandas Nayak ,  Digamber Gurudas Porob ,  Gopi Chandran Ramachandran ,  Larry Steven Rosenzweig ,  Shankar Sivaramakrishnan ,  Alok Mani Srivastava ,  Venkat Subramaniam Venkataramani

IPC: C23C4/12 ,  F01D9/02 ,  F02C7/24 ,  F01D5/28

CPC classification number: F01D5/288 ,  B05D1/18 ,  B05D1/28 ,  B05D3/0254 ,  B05D3/0493 ,  B05D5/00 ,  B05D7/14 ,  B05D7/142 ,  B05D7/22 ,  B05D7/24 ,  B05D2401/10 ,  B05D2401/20 ,  C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  C23C18/1216 ,  C23C18/1225 ,  C23C18/1254 ,  C23C28/3215 ,  C23C28/3455 ,  F01D9/02 ,  F02C7/24 ,  F02C7/30 ,  F05D2220/32 ,  F05D2230/30 ,  F05D2230/312 ,  F05D2230/90 ,  F05D2240/12 ,  F05D2240/30 ,  F05D2240/35 ,  F05D2260/95 ,  F05D2300/13 ,  F05D2300/15 ,  F05D2300/20 ,  F05D2300/21 ,  F05D2300/228 ,  F05D2300/30 ,  F05D2300/50 ,  F05D2300/605 ,  F05D2300/606 ,  C04B35/565 ,  C04B35/806 ,  C04B41/5096 ,  C04B41/5071 ,  C04B41/522 ,  C04B41/4582 ,  C04B41/5042 ,  C04B41/4515 ,  C04B41/4535 ,  C04B41/455 ,  C04B41/5031

Abstract: Articles having coatings that are resistant to high temperature degradation are described, along with methods for making such articles. The article comprises a coating disposed on a substrate. The coating comprises a plurality of elongated surface-connected voids. The article further includes a protective agent disposed within at least some of the voids of the coating; the protective agent comprises a substance capable of chemically reacting with liquid nominal CMAS to form a solid crystalline product outside the crystallization field of said nominal CMAS. This solid crystalline product has a melting temperature greater than about 1200 degrees Celsius. The method generally includes disposing the protective agent noted above within the surface connected voids of the coating at an effective concentration to substantially prevent incursion of CMAS materials into the voids in which the protective agent is disposed.

Abstract translation: 描述了具有耐高温降解的涂层的制品以及制造这种制品的方法。 该制品包括设置在基底上的涂层。 涂层包括多个细长的表面连接的空隙。 该制品还包括设置在涂层的至少一些空隙内的保护剂; 保护剂包括能够与液体标称CMAS发生化学反应以在所述标称CMAS的结晶场外形成固体结晶产物的物质。 该固体结晶产物的熔融温度大于约1200摄氏度。 该方法通常包括以有效浓度将上述保护剂置于表面连接的空隙内，以基本上防止CMAS材料侵入到其中设置保护剂的空隙中。