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公开(公告)号：EP4433260A1
公开(公告)日：2024-09-25
申请号：EP22896458.1
申请日：2022-11-17
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公开(公告)号：EP3819276A1
公开(公告)日：2021-05-12
申请号：EP20206017.4
申请日：2020-11-05
IPC分类号： C04B35/628 , C04B35/80 , C04B35/111 , C04B35/185 , C04B35/195 , C04B35/565 , C04B35/117
摘要： Disclosed is a coated ceramic fiber including a zirconium interface coating layer deposited on the ceramic fiber, a zirconium dioxide interface coating layer adjacent to the zirconium interface coating layer, and an additional interface coating layer adjacent to the zirconium dioxide interface coating layer, wherein zirconium dioxide interface coating layer forms micro cracks after a crystal structure transformation. The coated ceramic fiber may be included in a composite material having a ceramic matrix.
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公开(公告)号：EP4419844A2
公开(公告)日：2024-08-28
申请号：EP22940472.8
申请日：2022-10-21
CPC分类号： Y02T50/60 , F23R3/007 , F23R3/06 , F23R3/002 , F01D5/186 , F05D2260/20220130101 , F05D2300/22220130101 , F01D5/187
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公开(公告)号：EP4242193A2
公开(公告)日：2023-09-13
申请号：EP23185025.6
申请日：2018-08-28
IPC分类号： C04B35/80
摘要： A method for fabricating a component (20) includes the steps of depositing a stoichiometric precursor layer (32) onto a preform (26), and densifying the preform (32) by depositing a matrix material (24) onto the stoichiometric precursor layer (32).
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公开(公告)号：EP4223727A1
公开(公告)日：2023-08-09
申请号：EP23154552.6
申请日：2023-02-01
发明人： WANG, Zhigang , TANG, Xia , BEALS, James T. , SRINIVASAN, Gajawalli V. , RIEHL, John D. , HAZEL, Brian T. , LITTON, David A.
摘要： An adaptive surface texturing method is provided for use with a part formed of ceramic matrix composites (CMCs) to be coated with an environmental barrier coating (EBC). The method includes coating a CMC surface of the part with an initial coating, determining a contour and an undulation pattern of the CMC surface and designing a texturing pattern to follow the contour and the undulation pattern and to be formed in the initial coating based on a thickness of the initial coating and an average particle size of a slurry of the EBC.
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公开(公告)号：EP4137271A1
公开(公告)日：2023-02-22
申请号：EP22188828.2
申请日：2022-08-04
发明人： WANG, Zhigang , CROTEAU, Paul F. , SRINIVASAN, Gajawalli V. , RIEHL, John D. , FERNANDEZ, Robin H.
IPC分类号： B24C1/04 , B26F1/31 , B26F1/26 , B23K26/10 , B23K26/146
摘要： A method of machining includes mounting a component in a drilling machine. The component has a target region where the hole is to be drilled. The component and a jet head are situated relative to each other in a drilling arrangement in which the target region is at a first position that is vertically equal to or vertically above a second position at which the jet head is located. A liquid stream is jetted from the jet head and contains either abrasive particles or a laser beam. The stream impinges the target region, and the abrasive particles or the laser beam cause removal of material from the component to form the hole. The liquid stream rebounds off of the component as back-splash. The drilling arrangement causes gravitational draining of the back-splash from the target region to reduce interference between the back-splash and the liquid stream.
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公开(公告)号：EP4219905A1
公开(公告)日：2023-08-02
申请号：EP23153534.5
申请日：2023-01-26
发明人： WANG, Zhigang , EL-WARDANY, Tahany , TANG, Xia , SRINIVASAN, Gajawalli V. , RUGLIO, Anthony G. , FANG, Xiaomei
IPC分类号： F01D5/28
摘要： A gas turbine engine article includes a substrate (62) that has a pre-bond surface (62a) that includes a serpentine groove (66). A coating is disposed on the pre-bond surface (62a) and mechanically interlocks with the serpentine groove (66).
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公开(公告)号：EP4209300A1
公开(公告)日：2023-07-12
申请号：EP23150790.6
申请日：2023-01-09
发明人： WANG, Zhigang , MENDOZA, Jeffrey Michael , SRINIVASAN, Gajawalli V. , RIEHL, John D. , FERNANDEZ, Robin H.
IPC分类号： B23K26/03 , B23K26/064 , B23K26/06 , B23K26/146 , B23K26/38 , B23K26/382
摘要： A waterjet-guided laser machine (20) includes a laser source (22), an LED (24), a waterjet head (26), and a light sensor (30). The waterjet head (26) includes a water inlet (26a) and a nozzle (26b) having an outlet (26c) for a discharging a waterjet. There is a laser optical path (34a) along which a pulsed laser beam (34) travels to the nozzle outlet (26c). There is also a light beam optical delivery path (36a) along which the light beam (36) travels from the LED (24) to the nozzle outlet (26c). The light beam optical delivery path (36a) is coincident with the laser optical path (34a) in the nozzle (26b). There is a light beam optical return path (36b) along which the light beam (36) that is reflected off of a workpiece (W) travels to the light sensor (30). The light beam optical return path (36b) is coincident with the laser optical path (34a) inside the nozzle (26b) and coincident with the light beam optical delivery path (36a) inside the nozzle (26b).
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公开(公告)号：EP4201580A1
公开(公告)日：2023-06-28
申请号：EP22215445.2
申请日：2022-12-21
发明人： WANG, Zhigang , RIEHL, John D. , LAZUR, Andrew J. , FERNANDEZ, Robin H. , CROTEAU, Paul F. , SRINIVASAN, Gajawalli V. , SMITH, Ashley A.
IPC分类号： B23P15/02 , F01D5/14 , B23H9/10 , B23K26/384 , B24B1/04 , B23H7/38 , F01D5/18 , B23Q3/06 , B23P23/02 , B23K26/00 , B23P25/00
摘要： A method of machining cooling holes (64) includes providing a workpiece (60) in which a cooling hole is to be formed. The cooling hole, once formed, defines distinct first and second sections. The workpiece (60) is secured in a fixture (82) that is mounted in a first machine (84). In the first machine (84), a laser is used to drill a through-hole in a wall of the workpiece (60). The through-hole is spatially common to the first and second sections of the cooling hole. After drilling the through-hole, the fixture (82) with the workpiece (60) secured therein is removed from the first machine (84) and mounted in a second machine (86). In the second machine (86), ultrasonic machining is used to expand a portion of the through-hole to form the second section. An abrasive slurry used in the process is drained through the through-hole during the ultrasonic machining.
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公开(公告)号：EP3960719A1
公开(公告)日：2022-03-02
申请号：EP21183172.2
申请日：2021-07-01
发明人： JACKSON, Richard Wesley , TANG, Xia , BEALS, James T. , SRINIVASAN, Gajawalli V. , TREDWAY, William K.
IPC分类号： C04B35/01 , C04B35/14 , C04B35/80 , C04B41/00 , C04B41/50 , C23C24/08 , C23C26/00 , C23C28/04 , F01D5/28 , C04B41/45
摘要： An article includes a substrate and a barrier layer on the substrate. The barrier layer includes a matrix, diffusive particles dispersed in the matrix, and gettering particles dispersed in the matrix. The gettering particles include at least one alloyed metal silicide. A composite material and a method of fabricating an article are also disclosed.
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