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公开(公告)号：US20220314352A1
公开(公告)日：2022-10-06
申请号：US17221440
申请日：2021-04-02
Applicant: General Electric Company
Inventor： Voramon Supatarawanich Dheeradhada , Raghavendra Rao Adharapurapu , Juan Borja , Don Mark Lipkin
Abstract: A method of furnace-less brazing of a substrate is provided. The method includes providing a substrate having a braze region thereon; disposing braze precursor material containing a nickel powder, an aluminum powder, and a platinum group metal powder on the braze region; and initiating an exothermic reaction of the braze precursor material such that the exothermic reaction produces a braze material that reaches a braze temperature above the solidus temperature of the braze material. A braze precursor material is also provided.
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公开(公告)号：US20210035716A1
公开(公告)日：2021-02-04
申请号：US16526192
申请日：2019-07-30
Applicant: General Electric Company
Inventor： Raghavendra Rao Adharapurapu , Sudeep Pradhan Sadananda Rao , Reshma Saira Mathew , Min Zou
Abstract: A method of heat-treating an additively-manufactured ferromagnetic component is presented. The additively-manufactured ferromagnetic component includes a metal alloy having iron and cobalt. The method of heat-treating is performed such that a saturation flux density of a heat-treated ferromagnetic component is greater than a saturation flux density of an as-formed ferromagnetic component. The heat-treated ferromagnetic component has a microstructure having an average grain size of substantially all grains in a range of about 0.1 micron to about 25 microns. A ferromagnetic component is also presented.
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公开(公告)号：US20190001445A1
公开(公告)日：2019-01-03
申请号：US16124120
申请日：2018-09-06
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Raghavendra Rao Adharapurapu , Sundeep Kumar , Mohamed Rahmane
IPC: B23K35/30 , H01M10/39 , B23K35/00 , B23K35/02 , B23K35/32 , C04B37/00 , C04B37/02 , C22C19/05 , H01M2/08 , H01M10/02 , B23K103/18 , B23K103/00 , B23K101/36 , H01M2/02 , B23K103/16 , B23K101/18 , H01M10/38 , B23K101/38
Abstract: A braze alloy composition for sealing a ceramic component to a metal component in an electrochemical cell is presented. The braze alloy composition includes copper, nickel, and an active metal element. The braze alloy includes nickel in an amount less than about 30 weight percent, and the active metal element in an amount less than about 10 weight percent. An electrochemical cell using the braze alloy for sealing a ceramic component to a metal component in the cell is also provided.
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公开(公告)号：US10103410B2
公开(公告)日：2018-10-16
申请号：US14719742
申请日：2015-05-22
Applicant: General Electric Company
Inventor： Sundeep Kumar , Mohamed Rahmane , Hongbo Cao , Darren Michael Stohr , Raghavendra Rao Adharapurapu , Ravikumar Hanumantha
Abstract: A method for joining a metal component to a ceramic component is presented. The method includes disposing a metallic barrier layer on a metallized portion of the ceramic component, and joining the metal component to the metallized portion of the ceramic component through the metallic barrier layer. The metallic barrier layer comprises nickel and a melting point depressant. The metallic barrier layer is disposed by a screen printing process, followed by sintering the layer at a temperature less than about 1000 degrees Celsius. A sealing structure including a joint between a ceramic component and a metal component is also presented.
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公开(公告)号：US20230101214A1
公开(公告)日：2023-03-30
申请号：US18072064
申请日：2022-11-30
Applicant: General Electric Company
Inventor： Voramon Supatarawanich Dheeradhada , Raghavendra Rao Adharapurapu , Juan Borja , Don Mark Lipkin
Abstract: A method of furnace-less brazing of a substrate is provided. The method includes providing a substrate having a brazing region thereon; disposing braze precursor material containing a nickel powder, an aluminum powder, and a platinum group metal powder on the brazing region; and initiating an exothermic reaction of the braze precursor material such that the exothermic reaction produces a braze material that reaches a braze temperature above the liquidus temperature for the braze material. A braze precursor material is also provided.
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Patent Agency Ranking
公开(公告)号：US20200263558A1
公开(公告)日：2020-08-20
申请号：US16280261
申请日：2019-02-20
Applicant: General Electric Company
IPC: F01D11/12
Abstract: Various embodiments include honeycomb structures including an abradable material, and a method of applying such honeycomb structures to steel components of a gas turbine engine in order to reduce rub damage. Particular embodiments include a honeycomb structure having a plurality of cells, each cell of the plurality of cells including a cell wall surrounding a void, and an abradable material within the void of each cell of the plurality of cells, the abradable material including a metallic alloy and hollow particles.
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公开(公告)号：US20140356682A1
公开(公告)日：2014-12-04
申请号：US14321072
申请日：2014-07-01
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Sundeep Kumar , Thomas Martin Angeliu , Mohamed Rahmane , Arunabh Basak , Raghavendra Rao Adharapurapu , Tobias Eicke Juetting
CPC classification number: H01M10/399 , B23K35/001 , B23K35/004 , B23K35/0233 , B23K35/0238 , B23K35/3033 , B23K35/304 , C04B37/006 , C04B37/026 , C04B2237/12 , C04B2237/122 , C04B2237/123 , C04B2237/343 , C04B2237/40 , C04B2237/405 , C22C19/05 , C22C19/058 , H01M2/08 , H01M10/38 , Y10T29/4911
Abstract: An electrochemical cell is described, including an anodic chamber and a cathodic chamber separated by an electrolyte separator tube, all contained within a cell case. The cell also includes an electrically insulating ceramic collar positioned at an opening of the cathodic chamber, and defining an aperture in communication with the opening; along with a cathode current collector assembly; and at least one metallic ring that has a coefficient of thermal expansion (CTE) in the range of about 3 to about 7.5 ppm/° C., contacting at least a portion of a metallic component within the cell, and an adjacent ceramic component. An active braze alloy composition attaches and hermetically seals the ring to the metallic component and the collar. Sodium metal halide batteries that contain this type of cell are also described, along with methods for sealing structures within the cell.
Abstract translation: 描述了一种电化学电池，包括由电解质分离器管分离的阳极室和阴极室，全部包含在电池壳体内。 电池还包括位于阴极室的开口处并且限定与开口连通的孔的电绝缘陶瓷套环; 以及阴极集电器组件; 和至少一个金属环，其具有在约3至约7.5ppm /℃范围内的热膨胀系数（CTE），与电池内的至少一部分金属组分和相邻的陶瓷组分接触。 活性钎焊合金组合物将环密封并密封到金属部件和套环。 还描述了含有这种类型的电池的金属卤化物电池，以及用于密封电池内的结构的方法。
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公开(公告)号：US20140170015A1
公开(公告)日：2014-06-19
申请号：US13716334
申请日：2012-12-17
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Raul Basilio Rebak , Andrew David Deal , Voramon Supatarawanich Dheeradhada , Judson Sloan Marte , Raghavendra Rao Adharapurapu
CPC classification number: C22C38/02
Abstract: A steel composition resistant to sulfidic corrosion has been discovered. The newly discovered steel composition comprises the elements Fe, C, Si, Cu, and Mn wherein the composition comprises from about 96.80 to about 99.00 percent by weight iron, from about 0.10 to about 0.30 percent by weight carbon, from about 0.20 to about 1.40 percent by weight silicon, from about 0.50 to about 1.50 percent by weight copper, and from about 0.20 to about 1.00 percent by weight manganese, wherein the composition is substantially free of chromium, and wherein the composition contains less than 0.1 percent by weight nickel, molybdenum, or tungsten.
Abstract translation: 已经发现了耐硫化物腐蚀的钢组合物。 新发现的钢组合物包含元素Fe，C，Si，Cu和Mn，其中组合物包含约96.80至约99.00重量％的铁，约0.10至约0.30重量％的碳，约0.20至约1.40 重量百分比的硅，约0.50至约1.50重量％的铜和约0.20至约1.00重量％的锰，其中所述组合物基本上不含铬，并且其中所述组合物含有小于0.1重量％的镍， 钼或钨。
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公开(公告)号：US20240229654A1
公开(公告)日：2024-07-11
申请号：US18298409
申请日：2023-04-11
Applicant: General Electric Company
Inventor： Raghavendra Rao Adharapurapu
CPC classification number: F01D5/288 , C03C8/18 , C03C2207/08 , C03C2214/08 , F05D2240/303 , F05D2300/611
Abstract: A wear resistant article including a substrate and a bulk metallic glass coating including an alloy of a base metal, a transition metal, boron, and silicon, wherein the bulk metallic glass coating has a thickness of about 0.05 millimeter or greater and a functionally graded microstructure. A method of producing an article with a wear resistant coating by additively printing a bulk metallic glass coating onto at least a portion of the article.
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公开(公告)号：US10549372B2
公开(公告)日：2020-02-04
申请号：US15474273
申请日：2017-03-30
Applicant: General Electric Company
Inventor： Sundeep Kumar , Raghavendra Rao Adharapurapu
IPC: C22C45/04 , B23K1/19 , B23K35/30 , B23K101/00 , B23K101/38 , B23K103/18
Abstract: This disclosure includes the description of a braze alloy composition. The braze composition contains nickel, about 5% by weight to about 25% by weight germanium; and about 1% by weight to about 4% by weight boron. The composition has an amorphous structure, and is free of silicon.
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