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公开(公告)号：CA2913905A1
公开(公告)日：2016-06-12
申请号：CA2913905
申请日：2015-12-03
Applicant: GEN ELECTRIC
Inventor： BROSNAN KRISTEN HALL , CHATTERJEE SHAHANA , HASZ WAYNE CHARLES , NAYAK MOHANDAS , POROB DIGAMBER GURUDAS , RAMACHANDRAN GOPI CHANDRAN , ROSENZWEIG LARRY STEVEN , SIVARAMAKRISHNAN SHANKAR , SRIVASTAVA ALOK MANI , VENKATARAMANI VENKAT SUBRAMANIAM
IPC: C23F15/00
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.
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公开(公告)号：CA2978871A1
公开(公告)日：2016-09-15
申请号：CA2978871
申请日：2016-03-04
Applicant: GEN ELECTRIC
Inventor： RAMACHANDRA SRINIDHI , SRIVASTAVA ALOK MANI , RAMACHANDRAN GOPI CHANDRAN , NAMMALWAR PRASANTH KUMAR , CLIMENT HELENE CLAIRE
Abstract: A scintillator composition of formula AD(BO3)X2:E, an apparatus including this scintillator composition, and method for operating the apparatus are disclosed. In the scintillator formula, A may be barium, calcium, strontium, lanthanum, or a combination of any of barium, calcium, strontium, and lanthanum. D is aluminum, silicon, gallium, magnesium, or a combination of any of aluminum, silicon, gallium, and magnesium. X may be fluorine, chlorine or a combination of fluorine and chlorine. E includes cerium or a combination of cerium and lithium. The apparatus and methods disclosed herein may be used for detecting high energy radiation in a harsh environment.
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公开(公告)号：RO132979A2
公开(公告)日：2018-12-28
申请号：RO201700341
申请日：2015-12-01
Applicant: GEN ELECTRIC
Inventor： SAHA ATANU , RAMACHANDRAN GOPI CHANDRAN , NAGESH MAMATHA , THIMMEGOWDA SHALINI , PARTHASARATHY BALA SRINIVASAN
Abstract: Invenţia se referă la o metodă de protecţie a unor articole cu formă complexă care au suprafeţe lipsite de vizibilitate directăşi care au nevoie de protecţie suplimentară contra agenţilor corozivi existenţi în mediul de lucru. Metoda conform invenţiei constă în aplicarea pe toate suprafeţele exterioare ale unui articol a unei compoziţii de acoperire siliconică cu viscozitatea mai mică de 1600 centistoke şi apoi întărită la o temperatură cuprinsă între 80...150 °C, urmată de aplicarea unui alt strat intermediar de legătură format din două compoziţii lichide de acoperire exterioară din elastomer siliconic prima cu viscozitate mai mare de 300000 centistoke şi a doua cu viscozitate mai mică de 6000 centistoke, întărirea celui de-al doilea strat la o temperatură cuprinsă între 180...250°C, compoziţia stratului de acoperire exterioară de elastomer siliconic fiind formată din 60...40% procente în greutate din prima compoziţie lichidă de elastomer siliconic şi 40...60% procente în greutate din a doua compoziţie lichidă de elastomer siliconic, iar din întregul volum al compoziţiei lichide de acoperire exterioară de elastomer siliconic, 20% este o umplutură formată din una sau mai multe dintre substanţele: AlO, grafit, SiO, SiC, SiN, SiCN, WC şi ZrO.
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公开(公告)号：RU2717223C2
公开(公告)日：2020-03-18
申请号：RU2017132999
申请日：2016-03-04
Applicant: GEN ELECTRIC
Inventor： RAMACHANDRA SRINIDHI , SRIVASTAVA ALOK MANI , RAMACHANDRAN GOPI CHANDRAN , NAMMALWAR PRASANTH KUMAR , CLIMENT HELENE CLAIRE
Abstract: Изобретениеможетбытьиспользованов позитронно-эмиссионныхтомографах, вгеофизическихисследованияхскважин, атакжев системахбезопасности. Сцинтилляторимеетдлинуволныизлучениябольше 200 нм, максимумизлученияпри 320-460 нми химическуюформулу AD(BO)X:E, гдеА - Ва, Са, Sr, La илиихсочетание, D - Al, Ga, Mg илиихсочетание, X - F, Cl илиихсочетание, Е - СеилисочетаниеСеи Li. Содержаниецерияв сцинтилляторе 0,5-10 ат.%. Примерамиуказанногосцинтиллятораявляются (Ва,Са) (Al,Ga) (ВО)F: (Се, Li), Ва Gа (ВО)F: (Се, Li), LaMg (BO)F: Ce. Сцинтилляторможетбытьмонокристаллическим. Устройстводляобнаружениявысокоэнергетическогоизлученияв жесткихусловияхокружающейсредысодержитвышеуказанныймонокристалл-сцинтиллятор, эффективностьэмиссиикоторогопритемпературеболее 150°Спревышает 60% отэффективностиэмиссиимонокристаллаприкомнатнойтемпературе. Дляобнаружениявысокоэнергетическогоизлученияс помощьюсцинтилляционногодетекторауказанныймонокристалл-сцинтилляторпринимаетэтоизлучениеи образуетхарактеристическиедляданногоизлученияфотоны, которыеобнаруживаютс помощьюфотодетектора, соединённогос указанныммонокристаллом-сцинтиллятором. Изобретениепозволяетполучитьвлагостойкиесцинтилляторыс высокимсветовымвыходом, малымвременемпослесвеченияи хорошейразрешающейспособностью. 3 н. и 16 з.п. ф-лы, 9 ил.
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Patent Agency Ranking
公开(公告)号：DE112015002562T5
公开(公告)日：2017-03-09
申请号：DE112015002562
申请日：2015-05-14
Applicant: GEN ELECTRIC
Inventor： RAMACHANDRA SRINIDHI , XU WUSHENG , SRIVASTAVA ALOK MANI , RAMACHANDRAN GOPI CHANDRAN , NAMMALWAR PRASANTH KUMAR , DOLINSKY SERGEI IVANOVICH , CLIMENT HELENE CLAIRE
Abstract: Es sind ein Verfahren und eine Vorrichtung zur Detektion von Photonen offenbart. Die Vorrichtung enthält einen Szintillator-Einkristall und eine Avalanche-Photodiode, die mit dem Szintillator-Einkristall gekoppelt ist. Der Szintillator-Einkristall ist einer Temperatur von mehr als etwa 175°C und einem Erschütterungsniveau in einem Bereich von etwa 20 Grms bis etwa 30 Grms ausgesetzt. Der Szintillator-Einkristall enthält eine Praseodym-dotierte Zusammensetzung, die aus (LaxY1-x)2Si2O7:Pr, ABCl3-yXy:Pr, A2(Li,Na)LaCl6-yXy:Pr ausgewählt ist, oder beliebige Kombinationen von diesen. Wie hierin verwendet, ist A Cäsium, Rubidium, Kalium, Natrium oder eine Kombination von diesen, während B Kalzium, Barium, Strontium, Magnesium, Cadmium, Zink oder eine Kombination von diesen ist und X Brom, Jod oder eine Kombination von diesen ist. Ferner gilt (0 ≤ x
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公开(公告)号：CA2913905C
公开(公告)日：2019-01-08
申请号：CA2913905
申请日：2015-12-03
Applicant: GEN ELECTRIC
Inventor： BROSNAN KRISTEN HALL , CHATTERJEE SHAHANA , HASZ WAYNE CHARLES , NAYAK MOHANDAS , POROB DIGAMBER GURUDAS , RAMACHANDRAN GOPI CHANDRAN , ROSENZWEIG LARRY STEVEN , SIVARAMAKRISHNAN SHANKAR , SRIVASTAVA ALOK MANI , VENKATARAMANI VENKAT SUBRAMANIAM
IPC: C23F15/00
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.
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公开(公告)号：BR102015031030A2
公开(公告)日：2016-08-02
申请号：BR102015031030
申请日：2015-12-11
Applicant: GEN ELECTRIC
Inventor： SRIVASTAVA ALOK MANI , POROB DIGAMBER GURUDAS , RAMACHANDRAN GOPI CHANDRAN , BROSNAN KRISTEN HALL , ROSENZWEIG LARRY STEVEN , NAYAK MOHANDAS , CHATTERJEE SHAHANA , SIVARAMAKRISHNAN SHANKAR , VENKATARAMANI VENKAT SUBRAMANIAM , HASZ WAYNE CHARLES
Abstract: artigo a presente invenção refere-se a artigos que têm revestimentos que são resistentes à degradação em alta temperatura, juntamente com métodos para fabricar esses artigos. o artigo (100) compreende um revestimento (110) disposto sobre um substrato (120). o revestimento (110) compreende uma pluralidade de vazios alongados conectados à superfície (130). o artigo (100) inclui adicionalmente um agente protetor (150) disposto dentro de pelo menos alguns dos vazios (130) do revestimento (110); o agente protetor (150) compreende uma substância com capacidade para reagir quimicamente com cmas nominal líquido para formar um produto cristalino sólido fora do campo de cristalização do dito cmas nominal. esse produto cristalino sólido tem uma temperatura de fusão maior que cerca de 1.200 graus celsius. o método, em geral, inclui dispor o agente protetor (150) observado acima dentro dos vazios conectados à superfície (130) do revestimento (110) em uma concentração eficaz para impedir substancialmente a incursão de materiais de cmas dentro dos vazios (130) nos quais o agente protetor (150) é
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公开(公告)号：CA2969531A1
公开(公告)日：2016-06-16
申请号：CA2969531
申请日：2015-12-01
Applicant: GEN ELECTRIC
Inventor： SAHA ATANU , RAMACHANDRAN GOPI CHANDRAN , NAGESH MAMATHA , THIMMEGOWDA SHALINI , PARTHASARATHY BALA SRINIVASAN
IPC: B05D7/14 , C09D7/12 , C09D7/46 , C09D183/04
Abstract: A method of protecting an article having a complex shape is provided. A silicone bond coat composition having a viscosity of less than 1,600 centistokes is applied to substantially all external surfaces of the article and then cured. A liquid silicone elastomer outer coat composition comprising a high viscosity first liquid silicone elastomer formulation and a low viscosity second liquid silicone elastomer formulation is then applied and cured to provide a protected article having a complex shape. Optimal coatings result from a careful balancing of component viscosities. Optimally, the first formulation has a viscosity greater than 300,000 centistokes, and the second formulation has a viscosity less than 6,000 centistokes, and the liquid silicone elastomer outer coat composition comprises from about 60 to about 40 percent by weight of the first formulation and from about 40 to about 60 percent by weight of the second liquid silicone elastomer formulation.
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公开(公告)号：GB2413801A
公开(公告)日：2005-11-09
申请号：GB0508704
申请日：2005-04-28
Applicant: GEN ELECTRIC
Inventor： RAMACHANDRAN GOPI CHANDRAN , ADYAM MUKUNDA SRINIVAS , VENUGOPAL SHANKER MADRAS , SETLUR ANANT ACHYUT , SRIVASTAVA ALOK MANI , COMANZO HOLLY ANN , MANIVANNAN VENKATESAN , BEERS WILLIAM WINDER
Abstract: A phosphor has a formula selected from the group consisting of Sr4-a-zAaEuzD12O22 and Sr4-a-zAaEuzD14O25; wherein A is at least an alkaline-earth metal other than strontium; D is an element selected from the group consisting of Group-13 metals, Group-3 metals, and rare-earth metals other than europium; 0 0. The phosphor can be used in light sources and displays. In particular, A may be calcium, calcium and barium or magnesium and D may be aluminium or aluminium and lanthanum. A phosphor blend comprises the phosphor and a red light-emitting phosphor. Methods for making a phosphor comprises firing oxygen-containing materials comprising europium, at least two alkaline earth metals and at least a Group-13 metal in a reducing atmosphere at about 1000 {C to 1400 {C.
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