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公开(公告)号：SG134210A1
公开(公告)日：2007-08-29
申请号：SG2006085989
申请日：2006-12-11
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FRELING MELVIN , SCHLICHTING KEVIN W , MALONEY MICHAEL J , LITTON DAVID A , SMEGGIL JOHN G , SNOW DAVID B
Abstract: A turbine engine component is provided which has a substrate and a thermal barrier coating applied over the substrate. The thermal barrier coating comprises alternating layers of yttria- stabilized zirconia and a molten silicate resistant material. The molten silicate resistant outer layer may be formed from at least one oxide of a material selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, indium, zirconium, hafnium, and titanium or may be formed from a gadolinia-stabilized zirconia. If desired, a metallic bond coat may be present between the substrate and the thermal barrier coating system. A method for forming the thermal barrier coating system of the present invention is described.
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公开(公告)号：DE69404455T2
公开(公告)日：1998-02-26
申请号：DE69404455
申请日：1994-04-14
Applicant: UNITED TECHNOLOGIES CORP
Inventor： ALLEN WILLIAM P , BORNSTEIN NORMAN S , CHIN STEPHEN , DECRESCENTE MICHAEL , DUHL DAVID N , PARILLE DONALD R , PIKE ROSCOE A , SMEGGIL JOHN G
Abstract: Superalloy articles are made more oxidation resistant by a process which includes heat treating the article in the presence of foreign chemical species, at a temperature at which the foreign chemical species reacts with and modifies any oxide film present on the article surface. The heat treatment is best carried out at a temperature above the gamma prime solvus temperature of the article and below the incipient melting temperature of the article. Alternatively, the heat treatment may be carried out within the range defined by the incipient melting temperature of the article and about 150 DEG C. below the incipient melting temperature of the article. At such temperatures the foreign chemical species reacts with and modifies the oxide film on the article surface. Sulfur is then able to diffuse through such modified film, and a more oxidation resistant component is produced.
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3.发明专利
公开(公告)号：SG134217A1
公开(公告)日：2007-08-29
申请号：SG2006086789
申请日：2006-12-12
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MALONEY MICHAEL J , LITTON DAVID A , SCHLICHTING KEVIN W , FRELING MELVIN , SMEGGIL JOHN G , SNOW DAVID B
Abstract: A process of coating an article includes the steps of (1) forming a layer of a ceramic based compound on an article; (2) providing a solution containing a metal as a particulate having a diameter of about 10 nanometers to about 1000 nanometers and present in an amount of about 25 percent to about 50 percent by volume of the solution; (3) contacting the ceramic based compound layer with the solution; (4) drying the article; and (5) optionally repeating steps (3) and (4).
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4.发明专利
公开(公告)号：SG134218A1
公开(公告)日：2007-08-29
申请号：SG2006086813
申请日：2006-12-12
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SCHLICHTING KEVIN W , LITTON DAVID A , MALONEY MICHAEL J , FRELING MELVIN , SMEGGIL JOHN G , SNOW DAVID B
Abstract: A process of coating an article includes the steps of (1) applying a ceramic based compound to at least one surface of an article to form a layer of ceramic based compound; (2) applying at least one inert compound upon the ceramic based compound layer to form a protective layer, wherein the at least one inert compound is composed of a first inert compound having a cubic crystalline structure of formula (I) A 3 B 2 X 3 O 12 , or a second inert compound comprising a hexagonal crystalline structure of formula (II) A 4 B 6 X 6 O 26 , or a mixture of the first inert compound and the second inert compound; and (3) heat treating the coated article.
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公开(公告)号：SG131011A1
公开(公告)日：2007-04-26
申请号：SG2006053516
申请日：2006-08-07
Applicant: UNITED TECHNOLOGIES CORP
Inventor： BHATIA TANIA , SMEGGIL JOHN G , TREDWAY WILLIAM K , SCHMIDT WAYDE R , NARDONE VINCENT C
Abstract: An article comprising a substrate containing silicon and a barrier layer which functions as an environmental barrier coating and, more particularly, a barrier layer which comprises hafnium silicate and, optionally, zirconium silicate and a method for forming the hafnium silicate as a barrier coating.
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Patent Agency Ranking
公开(公告)号：DE69404455D1
公开(公告)日：1997-08-28
申请号：DE69404455
申请日：1994-04-14
Applicant: UNITED TECHNOLOGIES CORP
Inventor： ALLEN WILLIAM P , BORNSTEIN NORMAN S , CHIN STEPHEN , DECRESCENTE MICHAEL , DUHL DAVID N , PARILLE DONALD R , PIKE ROSCOE A , SMEGGIL JOHN G
Abstract: Superalloy articles are made more oxidation resistant by a process which includes heat treating the article in the presence of foreign chemical species, at a temperature at which the foreign chemical species reacts with and modifies any oxide film present on the article surface. The heat treatment is best carried out at a temperature above the gamma prime solvus temperature of the article and below the incipient melting temperature of the article. Alternatively, the heat treatment may be carried out within the range defined by the incipient melting temperature of the article and about 150 DEG C. below the incipient melting temperature of the article. At such temperatures the foreign chemical species reacts with and modifies the oxide film on the article surface. Sulfur is then able to diffuse through such modified film, and a more oxidation resistant component is produced.
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公开(公告)号：SG134219A1
公开(公告)日：2007-08-29
申请号：SG2006088413
申请日：2006-12-19
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SCHLICHTING KEVIN W , MALONEY MICHAEL J , LITTON DAVID A , FRELING MELVIN , SMEGGIL JOHN G , SNOW DAVID B
Abstract: A turbine engine component is provided which has a substrate, a yttria- stabilized zirconia coating applied over the substrate, and a molten silicate resistant outer layer. The molten silicate resistant outer layer is formed from gadolinia or gadolinia-stabilized zirconia. A method for forming the coating system of the present invention is described.
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公开(公告)号：ES2102639T3
公开(公告)日：1997-08-01
申请号：ES93903566
申请日：1993-01-15
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SMEGGIL JOHN G , BECKER NORMAN J
Abstract: A method of making silver-metal oxide materials suitable for use in electrical contacts includes oxidizing a silver-solute metal alloy in an oxidizing atmosphere. The oxidizing atmosphere has a sufficient amount of halide to inhibit the formation of a protective oxide scale around the alloy.
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公开(公告)号：CA2127685A1
公开(公告)日：1993-07-22
申请号：CA2127685
申请日：1993-01-15
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SMEGGIL JOHN G , BECKER NORMAN J
Abstract: 2127685 9314238 PCTABS00024 A method of making silver-metal oxide materials suitable for use in electrical contacts includes oxidizing a silver-solute metal alloy in an oxidizing atmosphere. The oxidizing atmosphere has a sufficient amount of halide to inhibit the formation of a protective oxide scale around the alloy. The invention also includes a silver-metal oxide material made with this method and an electrical contact with the silver-metal oxide material.
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公开(公告)号：SG140539A1
公开(公告)日：2008-03-28
申请号：SG2007058100
申请日：2007-08-08
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SCHLICHTING KEVIN W , LITTON DAVID A , MALONEY MICHAEL J , FRELING MELVIN , SMEGGIL JOHN G , SNOW DAVID B
Abstract: SILICATE RESISTANT THERMAL BARRIER COATING WITH ALTERNATING LAYERS A thermal barrier coating system for use on a turbine engine component which reduces sand related distress is provided. The coating system comprises at least one first layer of a stabilized material selected from the group consisting of zirconia, hafnia, and titania and at least one second layer containing at least one of oxyapatite and garnet. Where the coating system comprises multiple first layers and multiple second layers, the layers are formed or deposited in an alternating manner.
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