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公开(公告)号:DE602005004055T2
公开(公告)日:2008-12-18
申请号:DE602005004055
申请日:2005-03-22
Applicant: UNITED TECHNOLOGIES CORP
Inventor: ULION NICHOLAS E , BROADHURST DONALD , MALONEY MICHAEL J , CLAVETTE CLAUDE J , LITTON DAVID A , TRUBELJA MLADEN
Abstract: A method for reducing thermal conductivity in thermal barrier coatings (TBC) through the incorporation of porosity comprising the steps of depositing a mixture comprising a TBC matrix (13) and a fugitive material (11) upon a part to form a layer, and heating the layer at a temperature and for a duration sufficient to liberate a portion of the fugitive material to form a porous network.
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公开(公告)号:DE602005004055D1
公开(公告)日:2008-02-14
申请号:DE602005004055
申请日:2005-03-22
Applicant: UNITED TECHNOLOGIES CORP
Inventor: ULION NICHOLAS E , BROADHURST DONALD , MALONEY MICHAEL J , CLAVETTE CLAUDE J , LITTON DAVID A , TRUBELJA MLADEN
Abstract: A method for reducing thermal conductivity in thermal barrier coatings (TBC) through the incorporation of porosity comprising the steps of depositing a mixture comprising a TBC matrix (13) and a fugitive material (11) upon a part to form a layer, and heating the layer at a temperature and for a duration sufficient to liberate a portion of the fugitive material to form a porous network.
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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:DE69831779T2
公开(公告)日:2006-07-06
申请号:DE69831779
申请日:1998-11-18
Applicant: UNITED TECHNOLOGIES CORP
Inventor: MALONEY MICHAEL J
IPC: C04B38/00 , F01D5/28 , B21D39/00 , B32B3/26 , B32B18/00 , C23C4/04 , C23C14/06 , C23C14/08 , C23C16/00 , C23C28/00 , C23D5/04 , F02C7/00
Abstract: Layered ceramic coatings in which some layers contain porosity as described as are methods for producing such coatings. The different layers have different compositions and/or are applied under different conditions. As applied, some of the layers have a Zone I structure and some have a Zone II/III type structure (as defined by Movchan). Heat treatment can be used to increase the porosity in the Zone I structure layers.
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公开(公告)号:DE69903503T2
公开(公告)日:2003-06-05
申请号:DE69903503
申请日:1999-07-14
Applicant: UNITED TECHNOLOGIES CORP
Inventor: MALONEY MICHAEL J
Abstract: An article (10) having an improved thermal barrier coating (18) is disclosed. The article includes a superalloy substrate (12), and an adherent alumina layer (16) generated on the substrate surface. The article also includes a layer (18) of ceramic material forming a columnar grain, thermal barrier coating on the alumina layer (16). The coating (18) is composed of a generally homogeneous mixture of two materials, such as yttria and ceria and preferably at least about 5w/o yttria, balance ceria. The article (10) may also include an intermediate ceramic bond coat (17), such as a layer of yttria strengthened zirconia, to enhance the adherence of the thermal barrier coating. An associated apparatus and method for making the article are also disclosed. The TBC (thermal barrier coating) is applied by means of a EB-PVD process. The crucible is adapted to contain the ceramics separately from one another. The scan frequency of the electron beam is adapted in relation to the difference in vapour pressure between both materials and to the attainable composition.
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公开(公告)号:CA2284363A1
公开(公告)日:2000-04-01
申请号:CA2284363
申请日:1999-09-30
Applicant: UNITED TECHNOLOGIES CORP
Inventor: MALONEY MICHAEL J
IPC: C23C4/00 , C01B13/14 , C23C4/10 , C23C14/08 , C23C16/00 , C23C28/00 , C23C28/04 , C23C30/00 , F01D5/28 , F02K1/82 , F23R3/00 , C23C4/04 , F01B31/08 , C23C4/18
Abstract: A ceramic material has particular utility as a thermal insulating or thermal barrier coating on metallic substrates. The ceramic material includes gadolinia and zirconia, preferably forming gadolinia-zirconia oxide. The material may include fluorite and pyrochlore structure. This material exhibits chemical stability, thermal stability and thermal insulating properties superior to those of currently used thermal barrier ceramics, and also provides resistance to sintering and erosion comparable to currently used ceramics. A preferred material has between about 5 - 60 mol. % gadolinia.
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公开(公告)号:SG11201500286RA
公开(公告)日:2015-02-27
申请号:SG11201500286R
申请日:2013-07-31
Applicant: UNITED TECHNOLOGIES CORP
Inventor: NEAL JAMES W , LITTON DAVID A , BEERS RUSSELL A , ZIMMERMAN BENJAMIN JOSEPH , MALONEY MICHAEL J
Abstract: A coating system for coating a part (10), such as a turbine blade or vane, has a mask (14) positioned adjacent to a first portion (16) of the part (10) to be coated and a mechanism (30) for moving the mask (14) relative to the part (10). The mechanism (30) may be a gear mechanism or a magnetic mechanism.
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公开(公告)号:SG152051A1
公开(公告)日:2009-05-29
申请号:SG2005084884
申请日:2003-08-21
Applicant: UNITED TECHNOLOGIES CORP
Inventor: LITTON DAVID A , ULION NICHOLAS E , TRUBELJA MLADEN F , MALONEY MICHAEL J , WARRIER SUNIL GOVINDA
IPC: C01F17/00 , C01G25/02 , C01G27/02 , C04B35/488 , C04B35/50 , C09D5/18 , C23C4/10 , F01D5/28 , C23C28/00 , C23C30/00 , F02C7/00 , F23R3/42 , C04B35/01 , C09D1/00 , C23C14/08 , C23C14/22 , C23C16/00
Abstract: A thermal barrier coating comprising from 20.5 to 22.5 mol% of CeO2 combined with an oxide selected from the group consisting of zirconia, hafnia, and ceria.
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公开(公告)号:SG151095A1
公开(公告)日:2009-04-30
申请号:SG2005084967
申请日:2003-08-21
Applicant: UNITED TECHNOLOGIES CORP
Inventor: LITTON DAVID A , ULION NICHOLAS E , TRUBELJA MLADEN F , MALONEY MICHAEL J , WARRIER SUNIL GOVINDA
IPC: C01F17/00 , C01G25/02 , F01D5/28 , C01G27/02 , C04B35/488 , C04B35/50 , C09D5/18 , C23C4/10 , C23C28/00 , C23C30/00 , F02C7/00 , F23R3/42 , C23C4/04
Abstract: THERMAL BARRIER COATINGS WITH LOW THERMAL CONDUCTIVITY
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