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公开(公告)号：JP2002097580A
公开(公告)日：2002-04-02
申请号：JP2001197494
申请日：2001-06-28
Applicant: UNITED TECHNOLOGIES CORP
Inventor： EATON HARRY E JR , CHIN STEPHEN , BRENNAN JOHN J
IPC: C04B41/87 , C04B35/18 , C04B35/195 , C04B41/50 , C04B41/85 , C23C4/10 , C23C18/12 , C23C22/68 , C23C26/00 , C23C30/00 , F01D5/28 , F02K1/82
Abstract: PROBLEM TO BE SOLVED: To provide an article made of a silicon substrate and a barrier layer which inhibits generation of gaseous chemical species of silicon by preventing water from penetrating a silicon surface, and from oxidation of the surface, when the article is exposed to an aquatic environment of high temperatures. SOLUTION: The barrier layer for the silicon substrate includes an aluminosilicate of alkaline-earth metals and an additive which can react with silica to prevent a reaction of the free silica with the barrier layer.
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公开(公告)号：WO9924379A2
公开(公告)日：1999-05-20
申请号：PCT/US9823668
申请日：1998-11-06
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MCCLUSKEY PHILIP H , EATON HARRY E JR , GODIN DANIEL R , FOSTER GEORGE E , HARTER H DAVID , CHIN STEPHEN , COTNOIR GLENN A , ELLIS CHARLES A
CPC classification number: C04B41/5037 , C04B41/009 , C04B41/87 , C23C4/11 , C23C4/134 , F01D5/288 , F05D2230/312 , F05D2240/55 , F05D2300/2261 , Y10T428/252 , C04B41/0072 , C04B41/4527 , C04B35/565 , C04B35/584 , C04B35/806
Abstract: Coatings containing at least 85 % by volume crystalline mullite with less than 15 % by volume of amorphous material and mullite dissociation phases are plasma sprayed onto the surface of a silicon based ceramic substrate by closely controlling the plasma spray parameters including the mullite feed stock and its particle size, the nozzle outlet stand-off distance, movement of the substrate past the plasma flow, back side heating of the substrate and the powder feed rate through the plasma spray gun.
Abstract translation: 含有至少85体积％的具有小于15体积％的非晶材料和莫来石解离相的结晶莫来石的涂层通过密切控制包括莫来石原料及其莫来石原料的等离子体喷涂参数而被等离子体喷涂到硅基陶瓷基板的表面上 颗粒尺寸，喷嘴出口间隔距离，基板通过等离子体流动的运动，基板的背面加热和通过等离子体喷枪的粉末进给速率。
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公开(公告)号：DE69316245T2
公开(公告)日：1998-07-23
申请号：DE69316245
申请日：1993-01-28
Applicant: HOWMET CORP , UNITED TECHNOLOGIES CORP
Inventor： CHIN STEPHEN , PARILLE DONALD R , AIMONE PAUL R , MCCORMICK ROBERT L , JOHNSON PAUL R , KILINSKI BART M
Abstract: The oxidation resistance of a superalloy casting such as an equiaxed, directionally solidified, or single crystal casting, is improved by melting, pouring, or casting the alloy so as to react with a magnesium or calcium-bearing ceramic material. Magnesium or calcium is introduced into the alloy through a controlled reaction between the alloy and the magnesium or calcium-bearing ceramic material.
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公开(公告)号：DE69804252T2
公开(公告)日：2002-11-21
申请号：DE69804252
申请日：1998-11-06
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MCCLUSKEY H , EATON E , GODIN R , FOSTER E , HARTER DAVID , CHIN STEPHEN , COTNOIR A , ELLIS A
Abstract: Coatings containing at least 85% by volume crystalline mullite with less than 15% by volume of amorphous material and mullite dissociation phases are plasma sprayed onto the surface of a silicon based ceramic substrate by closely controlling the plasma spray parameters including the mullite feed stock and its particle size, the nozzle outlet stand-off distance, movement of the substrate past the plasma flow, back side heating of the substrate and the powder feed rate through the plasma spray gun.
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公开(公告)号：DE3671256D1
公开(公告)日：1990-06-21
申请号：DE3671256
申请日：1986-10-30
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CHIN STEPHEN , DUHL DAVID N
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Patent Agency Ranking
公开(公告)号：DE602004008145T2
公开(公告)日：2008-04-30
申请号：DE602004008145
申请日：2004-05-21
Applicant: UNITED TECHNOLOGIES CORP
Inventor： EATON HARRY E , SUN ELLEN Y , CHIN STEPHEN
Abstract: A bond layer (14) for use on a silicon based substrate 12 comprises an alloy comprising a refractory metal disilicide/silicon eutectic. The refractory metal disilicide is selected from the group consisting of disilicides of molybdenum, chromium, hafnium, niobium, tantalum, rhenium, titanium, tungsten, uranium, vanadium, yttrium and mixtures thereof. The refractory metal disilicide/silicon eutectic has a melting point of greater than 1300 DEG C.
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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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公开(公告)号：DE69316245D1
公开(公告)日：1998-02-19
申请号：DE69316245
申请日：1993-01-28
Applicant: HOWMET CORP , UNITED TECHNOLOGIES CORP
Inventor： CHIN STEPHEN , PARILLE DONALD R , AIMONE PAUL R , MCCORMICK ROBERT L , JOHNSON PAUL R , KILINSKI BART M
Abstract: The oxidation resistance of a superalloy casting such as an equiaxed, directionally solidified, or single crystal casting, is improved by melting, pouring, or casting the alloy so as to react with a magnesium or calcium-bearing ceramic material. Magnesium or calcium is introduced into the alloy through a controlled reaction between the alloy and the magnesium or calcium-bearing ceramic material.
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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：CA2083667A1
公开(公告)日：1993-07-31
申请号：CA2083667
申请日：1992-11-24
Applicant: HOWMET CORP , UNITED TECHNOLOGIES CORP
Inventor： CHIN STEPHEN , PARILLE DONALD R , AIMONE PAUL R , MCCORMICK ROBERT L , JOHNSON PAUL R , KILINSKI BART M
Abstract: OXIDATION RESISTANT SUPERALLOY CASTINGS The oxidation resistance of a superalloy casting such as an equiaxed, directionally solidified, or single crystal casting, is improved by melting, pouring, or casting the alloy so as to react with a magnesium or calcium-bearing ceramic material. Magnesium or calcium is introduced into the alloy through a controlled reaction between the alloy and the magnesium or calcium-bearing ceramic material.
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