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公开(公告)号：US20200024718A1
公开(公告)日：2020-01-23
申请号：US16218885
申请日：2018-12-13
Applicant: General Electric Company
Abstract: The present application provides Calcia-Magnesia-Alumina-Silica (CMAS) (or molten silicate) resistant thermal barrier coatings (IBC). The coatings include elongate growth domains of non-equiaxed, randomly arranged overlapping grains or splats. The elongate growth domains include overlapping individual, randomly distributed splats of tough and soft phases. In some embodiments, the elongate growth domains are formed via air plasma spray. In some embodiments, the tough phases are at least partially stabilized zirconia and/or hafnia compositions, and the soft phases are CMAS (or molten silicate) reactive or resistant compositions. Within each elongate growth domain, the mixture of the tough and soft phases act together to limit penetration of CMAS and also provide sufficient domain toughness to minimize cracking forces produced during crystallization of infiltrated CMAS. The soft phases may react with the CMAS and increase its melting point, increase its viscosity, and reduce the destabilization of the tough phases.
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公开(公告)号：US10415579B2
公开(公告)日：2019-09-17
申请号：US15278860
申请日：2016-09-28
Applicant: General Electric Company
Inventor： Neelesh Nandkumar Sarawate , Larry Steven Rosenzweig , Sathyanarayanan Raghavan , Changjie Sun , Ananda Barua , Jinjie Shi
Abstract: Coating systems for components of a gas turbine engine, such as a compressor blade tip, are provided. The coating system can include a ceramic material disposed along the compressor blade tip and may be used with a bare compressor casing. The ceramic coating is harder than the bare compressor casing and can reduce the rub ratio thereby increasing the lifetime of the compressor blades. Methods are also provided for applying the coating system onto a compressor blade.
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公开(公告)号：US10364701B2
公开(公告)日：2019-07-30
申请号：US15370447
申请日：2016-12-06
Applicant: General Electric Company
Inventor： Hrishikesh Keshavan , Byron Andrew Pritchard, Jr. , Shankar Sivaramakrishnan , Julie Marie Chapman , Ambarish Jayant Kulkarni , Bernard Patrick Bewlay , Mehmet M. Dede , Larry Steven Rosenzweig
Abstract: A coated component, along with methods of its formation, restoration, and use, is provided. The coated component may include a substrate defining a surface; a thermal barrier coating on the surface of the substrate; a layer of environmental contaminant compositions (e.g., CMAS) on the thermal barrier coating; and a chemical barrier coating on the layer of environmental contaminant compositions.
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公开(公告)号：US10221703B2
公开(公告)日：2019-03-05
申请号：US14950718
申请日：2015-11-24
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Shankar Sivaramakrishnan , Larry Steven Rosenzweig
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.
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公开(公告)号：US09938839B2
公开(公告)日：2018-04-10
申请号：US14211302
申请日：2014-03-14
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Larry Steven Rosenzweig , Reza Sarrafi-Nour
IPC: C23C4/04 , F01D5/28 , C04B41/50 , C04B41/87 , C04B41/89 , C04B41/00 , C04B41/52 , C23C4/18 , F01D5/22 , F01D9/04 , F02C7/25 , F23R3/00
CPC classification number: F01D5/288 , C04B41/009 , C04B41/5024 , C04B41/5045 , C04B41/52 , C04B41/87 , C04B41/89 , C23C4/04 , C23C4/18 , F01D5/225 , F01D5/282 , F01D5/284 , F01D9/041 , F02C7/25 , F05D2220/32 , F05D2230/90 , F05D2240/35 , F05D2300/15 , F05D2300/211 , F05D2300/6033 , F23M2900/05004 , F23R3/007 , C04B35/565 , C04B35/806 , C04B35/584 , C04B35/58092 , C04B41/0072 , C04B2103/001 , C04B2103/0021 , C04B41/5096 , C04B41/5071 , C04B41/522 , C04B41/5042
Abstract: Articles suitable for use as high-temperature machine components include a substrate and an environmental barrier coating disposed over the substrate, where the environmental barrier coating includes at least one hermetic self-sealing layer formed from a mixture including an alkaline earth metal aluminosilicate and a rare-earth silicate, and where the at least one hermetic self-sealing layer exhibits substantially no net remnant or residual expansion when subjected to high temperature heat treatment. The environmental barrier coating can further include a bondcoat disposed between the substrate and the hermetic self-sealing layer, a topcoat disposed over the hermetic self-sealing layer, and/or an intermediate layer disposed between the hermetic self-sealing layer and the bondcoat. The intermediate layer can include a barrier material that is substantially inert with respect to silica.
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Patent Agency Ranking
公开(公告)号：US20180087515A1
公开(公告)日：2018-03-29
申请号：US15278860
申请日：2016-09-28
Applicant: General Electric Company
Inventor： Neelesh Nandkumar Sarawate , Larry Steven Rosenzweig , Sathyanarayanan Raghavan , Changjie Sun , Ananda Barua , Jinjie Shi
CPC classification number: F04D29/023 , C23C4/11 , C23C4/134 , C23C30/00 , F01D5/284 , F01D5/288 , F02C3/06 , F04D29/324 , F05D2230/312 , F05D2230/90 , F05D2240/303 , F05D2240/307 , F05D2300/2118 , F05D2300/501 , F05D2300/506 , F05D2300/611 , Y02T50/672
Abstract: Coating systems for components of a gas turbine engine, such as a compressor blade tip, are provided. The coating system can include a ceramic material disposed along the compressor blade tip and may be used with a bare compressor casing. The ceramic coating is harder than the bare compressor casing and can reduce the rub ratio thereby increasing the lifetime of the compressor blades. Methods are also provided for applying the coating system onto a compressor blade.
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公开(公告)号：US20180087394A1
公开(公告)日：2018-03-29
申请号：US15280067
申请日：2016-09-29
Applicant: General Electric Company
Inventor： Neelesh Nandkumar Sarawate , Venkat Subramaniam Venkataramani , Anthony Christopher Marin , Stephen Francis Bancheri , Larry Steven Rosenzweig , Edip Sevincer
CPC classification number: F01D11/005 , F05D2240/11 , F05D2300/175 , F05D2300/502 , F05D2300/6033 , F05D2300/607 , F16J15/0806 , F16J15/0887
Abstract: A turbine system including a sealing component is presented. The sealing component is positioned in a gap between adjacent turbine components of the turbine system. The sealing component includes a metallic shim including a high-temperature-resistant alloy in a single crystal form. A turbine shroud assembly including the sealing component is also presented.
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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
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.
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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。
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20.发明申请METHODS OF MANUFACTURING SILICA-FORMING ARTICLES HAVING ENGINEERED SURFACES TO ENHANCE RESISTANCE TO CREEP SLIDING UNDER HIGH-TEMPERATURE LOADING 审中-公开制造具有工程化表面的二氧化硅制品的方法，以提高耐高温加载下的缓冲滑动性公开(公告)号：US20150118444A1
公开(公告)日：2015-04-30
申请号：US14068840
申请日：2013-10-31
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Don Mark Lipkin , Curtis Alan Johnson , Joshua Lee Margolies , Larry Steven Rosenzweig , Julin Wan
CPC classification number: C04B41/009 , B05D1/02 , B05D1/32 , B05D3/007 , B05D3/06 , B05D5/00 , C04B41/52 , C04B41/89 , F01D5/286 , F01D5/288 , F05D2300/2261 , F05D2300/2283 , Y10T428/24521 , Y10T428/24545 , C04B35/565 , C04B35/806 , C04B41/5096 , C04B41/5024 , C04B41/0036 , C04B41/53
Abstract: A method of forming an article includes forming a silicon-containing layer on a silicon-containing region of a surface of a substrate of the article; forming a plurality of channels and ridges in the silicon-containing layer; and forming at least one outer layer overlying the surface of the silicon-containing region. The plurality of channels and ridges may be formed by adding silicon-containing material to the silicon-containing layer. The channels and ridges may be formed by subtracting material from the silicon-containing layer. The channels and ridges may be formed by forming channels or grooves in the silicon-containing region of the surface of the substrate prior to formation of the silicon-containing layer.
Abstract translation: 形成制品的方法包括在制品的基材的表面的含硅区域上形成含硅层; 在所述含硅层中形成多个通道和脊; 以及形成覆盖所述含硅区域的表面的至少一个外层。 可以通过将含硅材料添加到含硅层来形成多个通道和脊。 可以通过从含硅层减去材料来形成通道和脊。 沟道和脊可以通过在形成含硅层之前在衬底的表面的含硅区域中形成通道或沟槽而形成。
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