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公开(公告)号：US20230287542A1
公开(公告)日：2023-09-14
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
CPC classification number: C22C32/0073 , C22C30/00 , C23C30/00
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：US20230257595A1
公开(公告)日：2023-08-17
申请号：US17838567
申请日：2022-06-13
Applicant: General Electric Company
Inventor： Arundhati Sengupta , Mohandas Nayak , Sundeep Kumar , Vipin Raju S
Abstract: A composition comprising a rare earth-doped zirconium/hafnium oxide is provided that has a defect-fluorite structure or a pyrochlore structure. The rare earth-doped zirconium/hafnium oxide has a formula: (Ln1aLn2aLn3aLn4aLn5b)2M2O7 where each of Ln1, Ln2, Ln3, Ln4, and Ln5 is a different rare earth element such that Ln1 and M have a first atomic radius ratio that is 1.35 to 1.45, Ln2 and M have a second atomic radius ratio that is 1.35 to 1.45, Ln3 and M have a third atomic radius ratio that is 1.46 to 1.78, and Ln4 and M have a fourth radius ratio that is 1.46 to 1.78; a is 0.2 or 0.25; b is 0.2 when a is 0.2, and b is 0 when a is 0.25; and M is Zr, Hf, or a mixture thereof. Methods of forming a coating that includes this composition, along with the resulting coated components, are also provided.
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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
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。
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公开(公告)号：US20160115819A1
公开(公告)日：2016-04-28
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
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.
Abstract translation: 提出了一种包括基板和设置在基板上的多个涂层的制品。 多个涂层包括设置在基板上的热障涂层; 以及包括设置在热障涂层上的钙镁 - 铝 - 氧化硅（CMAS）反应材料的保护涂层。 CMAS反应性材料具有斜方晶系的Weberite晶体结构。 CMAS反应性材料以有效量存在于多个涂层中，以在热障涂层的操作温度下与CMAS组合物反应，从而形成具有大于或等于 CMAS组成。 还提出了制造物品和相关涡轮发动机部件的方法。
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公开(公告)号：US20160115818A1
公开(公告)日：2016-04-28
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
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.
Abstract translation: 提出了一种包括基板和设置在基板上的多个涂层的物品。 多个涂层包括设置在基板上的热障涂层; 以及包括设置在热障涂层上的钙镁 - 铝 - 氧化硅（CMAS）反应材料的保护涂层。 CMAS反应性材料包括NZP型材料。 CMAS反应性材料以有效量存在于多个涂层中，以在热障涂层的操作温度下与CMAS组合物反应，从而形成具有大于或等于 CMAS组成。 还提出了制造物品和相关涡轮发动机部件的方法。
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Patent Agency Ranking
16.发明授权Ceramic, graded resistivity monolith using the ceramic, and method of making 有权使用陶瓷的陶瓷，分级电阻率整体及其制造方法公开(公告)号：US09111670B2
公开(公告)日：2015-08-18
申请号：US13684596
申请日：2012-11-26
Applicant: General Electric Company
Inventor： Mohandas Nayak , Sundeep Kumar , Padmaja Parakala , Sudhakar Eddula Reddy
IPC: H01C7/10 , H01C13/02 , C04B35/453 , C22C5/06 , B22F7/02 , H01C7/18 , H01C13/00 , B22F7/06 , C22C29/12 , C22C32/00 , B32B9/00 , B32B15/00
CPC classification number: H01C13/02 , B22F7/02 , B22F7/06 , B22F2203/11 , B22F2207/01 , B22F2998/10 , B32B9/00 , B32B15/00 , C04B35/453 , C22C5/06 , C22C29/12 , C22C32/0021 , H01C7/18 , H01C13/00 , B22F3/02 , B22F3/1017
Abstract: According to one embodiment, a monolithic cassette with graded electrical resistivity is presented. The monolithic cassette has a continuous grain structure between a first end and a second end; wherein electrical resistivity of the monolithic cassette is graded such that the resistance varies continuously from the first end to the second end. Methods and compositions for forming the monolithic cassette are also presented.
Abstract translation: 根据一个实施例，提出了具有分级电阻率的整体式盒式磁带。 整体式盒式磁带在第一端和第二端之间具有连续的晶粒结构; 其中单片盒的电阻率被分级，使得电阻从第一端到第二端连续变化。 还提出了用于形成整体式盒的方法和组合物。
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公开(公告)号：US20230392020A1
公开(公告)日：2023-12-07
申请号：US17830952
申请日：2022-06-02
Applicant: General Electric Company
Inventor： Mohandas Nayak , Sundeep Kumar , Arundhati Sengupta , Joshua R. Salisbury , Vipin Raju S , Julie Marie Kuhn
CPC classification number: C09D1/00 , C01G25/02 , C09D5/18 , C01P2002/52 , C01P2006/32
Abstract: A composition comprising an yttria-rare earth-doped zirconium oxide is provided that has a tetragonal structure and a formula: YaLnbCexZr1-a-b-xO2-δ where Ln is a mixture of rare earth elements; 0.01≤a≤0.051; 0.01≤b≤0.051 such that Y and each rare earth element is included in the composition in substantially equal molar amounts; 0.05≤(a+b)≤0.07; 0≤x≤0.051; and 0≤δ≤0.05. Methods of forming a coating that includes this composition, along with the resulting coated components, are also provided.
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公开(公告)号：US20230330700A1
公开(公告)日：2023-10-19
申请号：US18068153
申请日：2022-12-19
Applicant: General Electric Company
Inventor： Margeaux Wallace , Mamatha Nagesh , Mohandas Nayak , Sundeep Kumar , Bernard Patrick Bewlay , Julie Marie Kuhn
CPC classification number: B05D1/12 , C09K11/0822 , B05D2301/10
Abstract: Coated components, along with methods of their formation, are provided. The coated component may include a substrate having a surface and a thermal barrier coating on the surface of the substrate. The thermal barrier coating includes a plurality of elongated surface-connected voids therein, and wherein the thermal barrier coating comprises a plurality of nonspherical particles within a thermal barrier material.
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公开(公告)号：US20220280998A1
公开(公告)日：2022-09-08
申请号：US17473281
申请日：2021-09-13
Applicant: General Electric Company
Inventor： Paul Mathew , Mohandas Nayak , Sathisha Chikkabikkodu Hanum , Monty Lee Shelton
Abstract: An anti-fretting coating composition that is operationally stable at temperatures of 800° F. to 2650° F. is provided. The anti-fretting coating composition primarily includes cobalt and aluminum oxide and may also include other modifying phases that enhance the overall tribological performance. A component coated with the anti-fretting coating composition is also provided. The component includes a substrate having a first contact surface shaped to cooperate with a second contact surface of an abutting member in a manner which can develop wear between the first contact surface and the second contact surface. The first contact surface includes an anti-fretting coating thereon formed from the disclosed anti-fretting coating composition.
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公开(公告)号：US10790731B2
公开(公告)日：2020-09-29
申请号：US15993263
申请日：2018-05-30
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Weijun Yin , Anil Raj Duggal , Aharon Yakimov , Holly Ann Comanzo , Vijay Kumar Srivastava , Mohandas Nayak , Hao Huang , Oltea Puica Siclovan , Paul Michael Smigelski, Jr.
Abstract: A method of forming a coating on a component of an electrical machine is presented. The method includes coating a surface of the component with a ceramic material, via an electrophoretic process, to form a first coating. The method further includes contacting the first coating deposited by the electrophoretic process with a polymeric material to form a second coating. The method furthermore includes curing or melting the polymeric material in the second coating to form the coating including the ceramic material dispersed in a polymer matrix.
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