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公开(公告)号：US12270091B2
公开(公告)日：2025-04-08
申请号：US17727093
申请日：2022-04-22
Applicant: General Electric Company
Inventor： Sathisha Chikkabikkodu Hanum , Mohandas Nayak , Surinder Singh Pabla , Biju Dasan
Abstract: A composition, a machine component coated with the same, and a method of coating the machine component are provided. The composition includes a CoNiCrAlY alloy, where three or more elements of the CoNiCrAlY alloy are present in equimolar amounts, one of the three or more elements of the CoNiCrAlY alloy being aluminum (Al), and where a molar fraction of Al is between about 0.20 and about 0.25. The composition further includes a transition metal boride including at least one of: cobalt boride (Co2B), titanium boride (TiB2), zirconium boride (ZrB2), tantalum boride (TaB2), niobium boride (NiB2), or molybdenum boride (Mo2B), and a refractory alloy.
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公开(公告)号：US20240280054A1
公开(公告)日：2024-08-22
申请号：US18333597
申请日：2023-06-13
Applicant: General Electric Company , Unison Industries, LLC
Inventor： Karthick Gourishankar , Mohandas Nayak , Rejin Ratnakar , Eric Daniel Holbrook
CPC classification number: F02C7/24 , B32B1/08 , B32B3/28 , B32B9/005 , B32B9/041 , B32B2250/04 , B32B2255/20 , B32B2307/304 , B32B2307/416 , B32B2307/418 , F05D2240/15 , F05D2260/231
Abstract: A thermal insulation assembly for a duct through which high temperature fluid, greater than 500 Fahrenheit, passes. The thermal insulation assembly can experience pressures less than 80 kilopascals and can be included in a turbine engine. The thermal insulation assembly includes a first foil layer confronting the duct, a second foil layer spaced from the first foil layer, an insulation layer between the first foil layer and the second foil layer, an opacifier layer provided on the insulation layer, and a reflective layer applied to the opacifier layer.
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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.
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公开(公告)号：US20230407101A1
公开(公告)日：2023-12-21
申请号：US18085935
申请日：2022-12-21
Applicant: General Electric Company
Inventor： Mohandas Nayak , Sundeep Kumar , Atanu Saha , Julie Marie Kuhn
IPC: C09D1/00 , C09D133/08 , C09D179/08 , C08K3/105
CPC classification number: C09D1/00 , C09D133/08 , C23C4/11 , C08K3/105 , C09D179/08
Abstract: A coating method is provided. The coating method includes applying, via electrophoretic deposition or slurry deposition, an overcoat composition on an outer surface of a thermal barrier coating system on a substrate. The overcoat composition includes a coating material comprising a plurality of particles having a particle size of less than 1000 nm. The method includes sintering the overcoat composition in the presence of one or more sintering aids to form an overcoat layer having a surface roughness of less than 1 micrometer.
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公开(公告)号：US20230358237A1
公开(公告)日：2023-11-09
申请号：US17840416
申请日：2022-06-14
Applicant: General Electric Company
Inventor： David Raju Yamarthi , Sriram K , Mohandas Nayak , Anantharaman M , Mohan Kannaiah Raju , Prachi Anand Tappu , Deepak Ghiya , Adam Joseph Wangler
CPC classification number: F04D13/0606 , F04D29/70 , F04D29/044 , F04D25/026 , H02K5/10 , H02K9/19
Abstract: Layered barrier cans and methods of producing the same are disclosed herein. An example shroud disclosed herein includes an inner shell including a first non-metallic material, an outer shell including the first non-metallic material or a second non-metallic material, and a metal core shell positioned between the inner shell and the outer shell.
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Patent Agency Ranking
公开(公告)号：US20230242457A1
公开(公告)日：2023-08-03
申请号：US17650483
申请日：2022-02-09
Applicant: General Electric Company
Inventor： Mohandas Nayak , Sundeep Kumar , Surinder Singh Pabla
CPC classification number: C04B41/5045 , C04B35/50 , C04B41/87 , C04B41/4539 , C04B2235/3224 , C04B2235/3248
Abstract: A composition comprising a rare earth solid solution, at least one of HfO2 and CaZrO3/MgZrO3; and balance ZrO2. The rare earth solid solution may include Gd2O3 and Lu2O3. In another example, the rare earth solid solution may include Gd2O3, Lu2O3, and at least one of Yb2O3 and Sm2O3.
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公开(公告)号：US09803484B2
公开(公告)日：2017-10-31
申请号：US14576760
申请日：2014-12-19
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Venkat Subramaniam Venkataramani , Shahana Chatterjee , Mohandas Nayak , Shankar Sivaramakrishnan
CPC classification number: F01D5/288 , C01G25/00 , C01G33/00 , C01G35/00 , C01P2002/34 , F05D2300/2112 , Y02T50/672
Abstract: Articles, such as components for high temperature turbomachinery components, include one or more coatings bearing certain perovskite compositions resistant to incursion by liquid calcium-magnesium-aluminum-silicon-oxide (CMAS) materials during service. The CMAS-reactive material includes a perovskite-structured oxide, which comprises a) a rare earth element, b) niobium, tantalum or a combination of tantalum and niobium, and c) oxygen. The CMAS-reactive material is present in an effective amount to react with a CMAS composition at an operating temperature, thereby forming a reaction product having one or both of melting temperature and viscosity greater than that of the CMAS composition.
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公开(公告)号：US09790587B2
公开(公告)日：2017-10-17
申请号：US14525586
申请日：2014-10-28
Applicant: General Electric Company
Inventor： Mohandas Nayak , Shankar Sivaramakrishnan , Venkat Subramaniam Venkataramani , Alok Mani Srivastava , Shahana Chatterjee
IPC: F01D25/00 , F01D5/28 , C23C14/08 , C23C14/22 , C23C4/12 , C04B35/00 , C23C28/04 , C23C28/00 , C23C4/131 , C23C4/129 , C23C4/126 , C23C4/134
CPC classification number: C23C14/08 , C04B35/00 , C04B35/16 , C04B35/495 , C04B2235/3208 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3251 , C04B2235/3255 , C04B2235/76 , C23C4/126 , C23C4/129 , C23C4/131 , C23C4/134 , C23C28/042 , C23C28/321 , C23C28/3215 , C23C28/3455 , F01D5/288 , F05D2230/31 , F05D2230/90 , F05D2300/15 , F05D2300/211 , F05D2300/2112 , Y02T50/671
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 has an orthorhombic weberite crystal structure. 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.
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公开(公告)号：US09028997B2
公开(公告)日：2015-05-12
申请号：US13729343
申请日：2012-12-28
Applicant: General Electric Company
Inventor： Michael Colan Moscinski , Reza Sarrafi-Nour , Badri Narayan Ramamurthi , Mohandas Nayak , Darren Michael Stohr , Sundeep Kumar , Mohamed Rahmane , Arunabh Basak , Raghavendra Rao Adharapurapu
CPC classification number: H01M2/08 , H01M10/39 , H01M10/3909 , H01M10/399 , Y10T29/4911
Abstract: The present application provides for ceramic collars and metal rings for active brazing in sodium-based thermal batteries. The ceramic collar may be an alpha-alumina collar configured for active brazing, and thereby sealing, to outer and inner Ni rings for use in NaMx cells. The portions of the alpha-alumina collar active brazed to the outer and inner Ni rings may be outwardly facing and include inwardly extending recesses. The portions of the outer and inner Ni rings active brazed to the outwardly facing portions of the collar may be inwardly facing. The alpha-alumina collar may include a greater coefficient of thermal expansion than each of the outer and inner Ni rings, and the alpha-alumina collar and outer and inner Ni rings may be configured such that a portion of the outer and inner Ni rings is deformed into the inwardly extending recesses of the alpha-alumina collar after active brazing thereof.
Abstract translation: 本申请提供了用于钠基热电池中的活性钎焊的陶瓷套环和金属环。 陶瓷套圈可以是被配置用于主动钎焊，从而密封到用于NaMx电池的外部和内部Ni环的α-氧化铝轴环。 活性钎焊到外部和内部Ni环的α-氧化铝轴环的部分可以是向外的并且包括向内延伸的凹部。 活动钎焊到套环向外面的部分的外部和内部Ni环的部分可以向内。 α-氧化铝轴环可以包括比每个外部和内部Ni环更大的热膨胀系数，并且α-氧化铝轴环和外部和内部Ni环可以被构造成使得外部和内部Ni环的一部分是 在其活性钎焊之后变形成α-氧化铝轴环的向内延伸的凹部。
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公开(公告)号：US20230392264A1
公开(公告)日：2023-12-07
申请号：US17830937
申请日：2022-06-02
Applicant: General Electric Company
Inventor： Mohandas Nayak , Sundeep Kumar , Joshua R. Salisbury , Arundhati Sengupta , Narayanan Janakiraman , Vipin Raju S , Julie Marie Kuhn
IPC: C23C28/04
CPC classification number: C23C28/042
Abstract: A composition is provided of a rare earth-doped zirconium oxide having a tetragonal structure and having a formula: YaLnbTaxNbzZr1-a-b-x-zO2-δ where Ln is a rare earth element or a mixture of rare earth elements; 0≤a≤0.06; 0.06≤b≤0.12; 0≤x≤0.1; 0≤z≤0.1; 0.08≤(x+z)≤0.1; 0.16≤(a+b+x+z)≤0.22; and 0.01≤δ≤0.05. Methods of forming a coating with this composition, along with the coated components, are also provided.
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