公开(公告)号：US20140037903A1

公开(公告)日：2014-02-06

申请号：US14052104

申请日：2013-10-11

Applicant: General Electric Company

Inventor： Larry Steven Rosenzweig ,  James Anthony Ruud ,  Luc Stéphane Leblanc ,  Paul Matthew Thomas ,  Scott Sheridan Smith

IPC: F01D25/00

CPC classification number: F01D25/005 ,  C23C4/11 ,  C23C30/00 ,  Y02T50/67 ,  Y02T50/6765 ,  Y10T428/24471 ,  Y10T428/24479 ,  Y10T428/24802 ,  Y10T428/24893 ,  Y10T428/24926 ,  Y10T428/249986 ,  Y10T428/26 ,  Y10T428/31

Abstract: Coatings and articles suitable for use in high temperature environments, for example, are presented. One embodiment is a coating that comprises a plurality of elongate material growth domains defined between domain boundaries. The domains have an intra-domain density of at least about 75% of theoretical density, have a substantially equiaxed grain morphology, and comprise a plurality of at least partially melted and solidified particles. Another embodiment is a coating that comprises a matrix comprising a substantially equiaxed grain morphology and a plurality of vertically oriented cracks disposed in the matrix. Further embodiments include articles comprising one or more of the coatings described above.

Abstract translation: 介绍了适用于高温环境的涂料和制品。 一个实施方案是包含在畴边界之间限定的多个细长材料生长域的涂层。 所述结构域具有理论密度的至少约75％的畴内密度，具有基本上等轴的晶粒形态，并且包含多个至少部分熔融和固化的颗粒。 另一个实施方案是一种涂层，其包含基本上包含基本上等轴的晶粒形态的基体和设置在基质中的多个垂直取向的裂纹。 另外的实施方案包括包含上述一种或多种涂层的制品。

公开(公告)号：US11655194B2

公开(公告)日：2023-05-23

申请号：US16655626

申请日：2019-10-17

Applicant: General Electric Company

Inventor： Krishan Lal Luthra ,  Glen Harold Kirby ,  Julin Wan ,  Larry Steven Rosenzweig

IPC: C04B41/00 ,  C04B35/80 ,  C04B41/50 ,  C04B41/52

CPC classification number: C04B41/009 ,  C04B35/80 ,  C04B41/5057 ,  C04B41/5059 ,  C04B41/5071 ,  C04B41/522 ,  C04B2235/3826 ,  C04B2235/5244

Abstract: Coated components, along with methods of their formation, are provided. The coated component includes a ceramic substrate having a surface; an intermediate layer on the surface of the ceramic substrate; and an environmental barrier coating on the intermediate layer. The intermediate layer includes a carbon-sink material that inhibits accumulation of free carbon from a carbon-containing species within the intermediate layer, the ceramic substrate, or both.

公开(公告)号：US10934626B2

公开(公告)日：2021-03-02

申请号：US15493798

申请日：2017-04-21

Applicant: General Electric Company

Inventor： Julin Wan ,  Larry Steven Rosenzweig

IPC: C23C24/10 ,  F01D5/28 ,  C04B41/89 ,  C04B41/52 ,  C23C4/10 ,  C23D5/00 ,  C04B41/00 ,  C23C4/12 ,  C23C14/08

Abstract: Methods for preparing an environmental barrier coating and the resulting coating are provided. The methods and products include the incorporation of a continuous ceramic inner layer and a segmented ceramic outer layer on a CMC component. The segmented ceramic outer layer may be formed by thermal spray techniques. The coating is more stable at higher temperatures and provides for a longer lifetime of the coated component.

公开(公告)号：US20180305821A1

公开(公告)日：2018-10-25

申请号：US15493798

申请日：2017-04-21

Applicant: General Electric Company

Inventor： Julin Wan ,  Larry Steven Rosenzweig

IPC: C23C24/10 ,  F01D5/28 ,  C23C4/10 ,  C23D5/00 ,  C23C4/12 ,  C23C14/08

CPC classification number: C04B41/89 ,  C04B41/009 ,  C04B41/52 ,  F01D5/282 ,  F01D5/288 ,  F05D2230/90 ,  F05D2300/514 ,  F05D2300/6033 ,  F05D2300/6111 ,  C04B35/80 ,  C04B41/5096 ,  C04B41/5071 ,  C04B41/522 ,  C04B41/5024 ,  C04B41/4527 ,  C04B41/4572 ,  C04B41/5027

Abstract: Methods for preparing an environmental barrier coating and the resulting coating are provided. The methods and products include the incorporation of a continuous ceramic inner layer and a segmented ceramic outer layer on a CMC component. The segmented ceramic outer layer may be formed by thermal spray techniques. The coating is more stable at higher temperatures and provides for a longer lifetime of the coated component.

公开(公告)号：US20180087387A1

公开(公告)日：2018-03-29

申请号：US15278821

申请日：2016-09-28

Applicant: General Electric Company

Inventor： Jinjie Shi ,  Larry Steven Rosenzweig ,  Christopher Edward Wolfe ,  Dennis Paul Dry

IPC: F01D5/28 ,  F01D25/24

CPC classification number: F01D5/288 ,  F01D11/122 ,  F05D2230/90 ,  F05D2240/307 ,  F05D2300/175 ,  F05D2300/506 ,  F05D2300/6012 ,  F05D2300/6033 ,  Y02T50/672 ,  Y02T50/673 ,  Y02T50/6765

Abstract: Coating systems for a turbine blade tip, such as a metal turbine blade tip, are provided. The coating system can include a thermal barrier coating on the surface of the turbine blade tip as well as one or more bond coats and/or metallic coatings. The coated blade tip can be used with a ceramic matrix composite shroud coated with an environmental barrier coating to reduce blade tip wear. Methods are also provided for applying the coating system onto a turbine blade tip.

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。

公开(公告)号：US20130130042A1

公开(公告)日：2013-05-23

申请号：US13744958

申请日：2013-01-18

Applicant: General Electric Company

Inventor： Reza Sarrafi-Nour ,  Peter Joel Meschter ,  Curtis Alan Johnson ,  Krishan Lal Luthra ,  Larry Steven Rosenzweig

IPC: C09D5/00 ,  B32B9/04

CPC classification number: C09D5/00 ,  B32B9/04 ,  C01B32/956 ,  C04B41/52 ,  C04B41/89 ,  C09D1/02 ,  C23C26/00 ,  C23C28/042 ,  C23C30/00 ,  C04B41/4527 ,  C04B41/5096 ,  C04B41/5024 ,  C04B41/0072

Abstract: An article for use in aggressive environments is presented. In one embodiment, the article comprises a substrate and a self-sealing and substantially hermetic sealing layer comprising an alkaline-earth aluminosilicate disposed over the bondcoat. The substrate may be any high-temperature material, including, for instance, silicon-bearing ceramics and ceramic matrix composites.

Abstract translation: 介绍了一种用于侵略性环境的文章。 在一个实施方案中，制品包括基材和自密封且基本上气密的密封层，其包含设置在粘合涂层上的碱土铝硅酸盐。 衬底可以是任何高温材料，包括例如含硅陶瓷和陶瓷基复合材料。