公开(公告)号：US11506073B2

公开(公告)日：2022-11-22

申请号：US17113235

申请日：2020-12-07

Applicant: Rolls-Royce North American Technologies, Inc. ,  Rolls-Royce Corporation

Inventor： Jun Shi ,  Li Li ,  Ted J. Freeman

IPC: F01D11/12 ,  F01D5/28 ,  F01D11/14

Abstract: An example high-performance system includes an example high-performance component including a substrate and a multilayer abradable track adjacent to the substrate. The abradable track includes a plurality of alternating layers along a thickness of the abradable track. The plurality of alternating layers includes at least one relatively porous abradable layer and at least one relatively dense layer. A porosity of the relatively dense layer is lower than that of the at least one relatively porous abradable layer. The example high-performance system may include a rotating component configured to contact and abrade the multilayer abradable track. An example technique for forming the multilayer abradable track includes thermal spraying a first precursor composition toward the substrate to form a relatively porous abradable layer of a layer pair of a plurality of layer pairs of the multilayer abradable track, and a second precursor composition to form a relatively dense layer of the pair.

公开(公告)号：US20210188721A1

公开(公告)日：2021-06-24

申请号：US17126807

申请日：2020-12-18

Applicant: Rolls-Royce Corporation

Inventor： Jun Shi ,  Li Li

IPC: C04B41/50 ,  C04B41/00 ,  C04B41/45 ,  C04B41/52

Abstract: In some examples, an article includes a ceramic or a ceramic or ceramic matrix composite (CMC) substrate; and an abradable coating on the CMC substrate. The abradable coating includes a plurality of first rare earth (RE) silicate layers in an alternating arrangement with a plurality of second RE silicate layers, wherein the first RE silicate layers include a rare earth monosilicate and the second RE silicate layers include a rare earth disilicate, and wherein the first RE silicate layers include a greater concentration of the rare earth monosilicate than the second RE silicate layers.

公开(公告)号：US20210024424A1

公开(公告)日：2021-01-28

申请号：US16522524

申请日：2019-07-25

Applicant: Rolls-Royce Corporation

Inventor： Li Li ,  Jun Shi ,  Scott Nelson ,  Taylor K. Blair

IPC: C04B35/622 ,  B05D1/38 ,  B05D3/12 ,  C04B35/16

Abstract: An example article includes a substrate and a barrier coating on the substrate extending from an inner interface facing the substrate to an outer surface opposite the inner interface. The barrier coating includes a bulk matrix and a plurality of discrete plugs inset within the bulk matrix and dispersed across the outer surface of the barrier coating. An example technique includes forming the barrier coating on the substrate of a component.

公开(公告)号：US11827986B2

公开(公告)日：2023-11-28

申请号：US16355056

申请日：2019-03-15

Applicant: Rolls-Royce Corporation ,  Rolls-Royce plc ,  Rolls-Royce North American Technologies, Inc.

Inventor： Sean E. Landwehr ,  Ngunjoh Lawrence Ndamka ,  Matthew R. Gold ,  Michael Cybulsky ,  Li Li ,  Robert Golden

IPC: C23C4/04 ,  C04B41/50 ,  C23C28/00 ,  C23C4/134 ,  C23C14/06 ,  C23C14/30 ,  C23C28/04 ,  C04B41/45

CPC classification number: C23C28/345 ,  C04B41/459 ,  C04B41/5024 ,  C23C4/04 ,  C23C4/134 ,  C23C14/06 ,  C23C14/30 ,  C23C28/042 ,  C23C28/044 ,  C23C28/321 ,  C23C28/322 ,  C23C28/3215 ,  C23C28/34 ,  C23C28/347 ,  C23C28/3455 ,  Y10T428/249953

Abstract: In some examples, an article may include a substrate and a coating system on the substrate. The coating system may include a layer comprising a plurality of voids, wherein respective voids of the plurality of voids define respective void volumes; and a nucleating agent within at least some of the respective void volumes of the layer, wherein the nucleating agent is configured to induce crystallization of the molten CMAS. The coating system may include an environmental barrier coating, thermal barrier coating, and/or abradable coating.

公开(公告)号：US11739650B2

公开(公告)日：2023-08-29

申请号：US16286047

申请日：2019-02-26

Applicant: Rolls-Royce Corporation ,  Rolls-Royce North American Technologies, Inc.

Inventor： Jun Shi ,  John Alan Weaver ,  Li Li ,  Ann Bolcavage ,  Matthew R. Gold

IPC: F01D5/28 ,  F01D5/14 ,  C04B41/52 ,  C04B41/89

CPC classification number: F01D5/288 ,  C04B41/52 ,  C04B41/89 ,  F01D5/147 ,  F05B2260/202 ,  F05D2230/31 ,  F05D2230/90

Abstract: The disclosure describes articles and techniques that include an airfoil having a hybrid coating system to provide improved particle impact resistance and improve CMAS attack resistance on the pressure side of the airfoil and improved thermal load protection on the suction side of the airfoil. An example article for a gas turbine engine may include a substrate, and a hybrid environmental barrier coating (EBC) including a relatively dense EBC layer on a first portion of the substrate and a relatively porous EBC layer on a second portion of the substrate, where the first portion of the substrate is different from the second portion of the substrate, and wherein at least a portion of the relatively porous EBC layer overlaps at least a portion of the relatively dense EBC layer in an overlap region.

公开(公告)号：US20220341335A1

公开(公告)日：2022-10-27

申请号：US17302003

申请日：2021-04-21

Applicant: Rolls-Royce Corporation ,  Rolls-Royce High Temperature Composites, Inc.

Inventor： Stephanie Gong ,  Scott Nelson ,  Sungbo Shim ,  Li Li ,  Robert Alexander Sean Golden

IPC: F01D5/28

Abstract: In some examples, the disclosure describes an article and a method of making the same that includes a substrate defining an outer surface, a barrier layer on the outer surface of the substrate, the barrier layer defining a textured surface having a plurality of cells, each cell having a geometry and a depth, and an overlying layer formed on the textured surface of the barrier layer. The barrier layer may be configured to reduce migration of material from the substrate to the overlaying layer to reduce or prevent formation of cristobalite phase thermally grown oxide.

公开(公告)号：US10900371B2

公开(公告)日：2021-01-26

申请号：US16043708

申请日：2018-07-24

Applicant: Rolls-Royce Corporation ,  Rolls-Royce North American Technologies, Inc.

Inventor： Jun Shi ,  Li Li ,  Ted J. Freeman

IPC: F01D11/12 ,  F01D25/24 ,  F01D25/00

Abstract: An example high-performance system may include an example high-performance component. The high-performance component may include a substrate defining a channel. The channel defines a leading ramp and a trailing ramp. The example high-performance component includes an abradable track between the leading and the trailing ramps. The abradable track includes a porous abradable composition. The example high-performance system may include a rotating component configured to contact and abrade the abradable track. An example technique for forming the abradable track includes thermal spraying a precursor composition at the channel to form the abradable track.

公开(公告)号：US10858950B2

公开(公告)日：2020-12-08

申请号：US16043755

申请日：2018-07-24

Applicant: Rolls-Royce Corporation ,  Rolls-Royce North American Technologies, Inc.

Inventor： Jun Shi ,  Li Li ,  Ted J. Freeman

IPC: F01D11/12 ,  F01D5/28 ,  F01D11/14

Abstract: An example high-performance system includes an example high-performance component including a substrate and a multilayer abradable track adjacent to the substrate. The abradable track includes a plurality of alternating layers along a thickness of the abradable track. The plurality of alternating layers includes at least one relatively porous abradable layer and at least one relatively dense layer. A porosity of the relatively dense layer is lower than that of the at least one relatively porous abradable layer. The example high-performance system may include a rotating component configured to contact and abrade the multilayer abradable track. An example technique for forming the multilayer abradable track includes thermal spraying a first precursor composition toward the substrate to form a relatively porous abradable layer of a layer pair of a plurality of layer pairs of the multilayer abradable track, and a second precursor composition to form a relatively dense layer of the pair.

公开(公告)号：US20190092701A1

公开(公告)日：2019-03-28

申请号：US16138580

申请日：2018-09-21

Applicant: Rolls-Royce Corporation ,  Rolls-Royce plc

Inventor： Stephanie Gong ,  Ngunjoh Lawrence Ndamka ,  Matthew R. Gold ,  Li Li ,  Taylor K. Blair ,  Sunny Chang ,  Ann Bolcavage

IPC: C04B41/52 ,  C04B41/50 ,  C04B41/45 ,  B05B7/20

Abstract: An article may include a substrate including a ceramic matrix composite (CMC); a composite coating layer including a first coating material that includes a rare-earth disilicate and a second coating material that includes at least one of a rare-earth monosilicate, a CMAS-resistant material, or a high-temperature dislocating material, where the second coating material forms a substantially continuous phase in the composite coating layer.

公开(公告)号：US20190032504A1

公开(公告)日：2019-01-31

申请号：US16043755

申请日：2018-07-24

Applicant: Rolls-Royce Corporation ,  Rolls-Royce North American Technologies, Inc.

Inventor： Jun Shi ,  Li Li ,  Ted J. Freeman

IPC: F01D11/12

Abstract: An example high-performance system includes an example high-performance component including a substrate and a multilayer abradable track adjacent to the substrate. The abradable track includes a plurality of alternating layers along a thickness of the abradable track. The plurality of alternating layers includes at least one relatively porous abradable layer and at least one relatively dense layer. A porosity of the relatively dense layer is lower than that of the at least one relatively porous abradable layer. The example high-performance system may include a rotating component configured to contact and abrade the multilayer abradable track. An example technique for forming the multilayer abradable track includes thermal spraying a first precursor composition toward the substrate to form a relatively porous abradable layer of a layer pair of a plurality of layer pairs of the multilayer abradable track, and a second precursor composition to form a relatively dense layer of the pair.