Patents by Inventor Stephanie Gong

Stephanie Gong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12311439
    Abstract: A method may include controlling, by a computing device, an energy source to form a melt pool at a build surface; and controlling, by the computing device, a material delivery device to direct a powder at the melt pool to form the seal fin comprising a metal matrix composite on the build surface, wherein the metal matrix composite comprises a matrix material and a reinforcement phase.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: May 27, 2025
    Assignee: Rolls-Royce Corporation
    Inventors: Scott Nelson, John Grubbs, Stephanie Gong
  • Publication number: 20250032122
    Abstract: An implant for vascular treatment may include a wire having three or more sections, with adjacent sections having different stiffnesses and/or other properties to facilitate treating an aneurysm with a single instance of the wire. As compared to treating aneurysms using multiple coils, the wire having three or more sections may reduce the time required for treatment of the aneurysm.
    Type: Application
    Filed: July 29, 2024
    Publication date: January 30, 2025
    Inventors: Ujwal JALGAONKAR, Ryan SOLOMON, Stephanie GONG
  • Publication number: 20240344167
    Abstract: In one example, a method for forming an environmental barrier coating (EBC), thermal barrier coating (TBC), and/or abradable coating on a substrate. The method may include depositing a coating on a substrate to form an as-deposited coating, wherein the coating includes at least one of a TBC layer, an EBC layer, or an abradable coating layer; and heat treating the as-deposited coating at or above a first temperature for a first period of time following the deposition of the as-deposited coating on the substrate, wherein heat treating the as-deposited coating includes heating the as-deposited coating to or above the first temperature at a controlled heating rate, and wherein the controlled heating rate is selected such that the heat treated coating exhibits a compressive residual stress state upon cooling.
    Type: Application
    Filed: April 11, 2024
    Publication date: October 17, 2024
    Inventors: Jun Shi, Weizhou Li, Stephanie Gong
  • Publication number: 20240217888
    Abstract: An example article includes a substrate and a barrier coating on the substrate. The barrier coating includes a matrix including a rare-earth disilicate extending from an inner interface facing the substrate to an outer surface opposite the inner interface. The barrier coating includes a graded volumetric distribution of rare-earth oxide rich (REO-rich) phase regions in the matrix along a direction from the inner interface to the outer surface. The graded volumetric distribution defines a first volumetric density of the REO-rich phase regions at a first region of the matrix adjacent the outer surface. The graded volumetric distribution defines a second volumetric density of the REO-rich phase regions at a second region of the matrix adjacent the inner surface. The second volumetric density is different from the first volumetric density. An example technique includes forming the barrier coating on the substrate of a component.
    Type: Application
    Filed: March 12, 2024
    Publication date: July 4, 2024
    Inventors: Ngunjoh Lawrence Ndamka, Li Li, Stephanie Gong, Ann Bolcavage, Taylor K. Blair, Robert Golden
  • Patent number: 11976013
    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.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: May 7, 2024
    Assignees: Rolls-Royce Corporation, Rolls-Royce plc
    Inventors: Stephanie Gong, Ngunjoh Lawrence Ndamka, Matthew R. Gold, Li Li, Taylor K. Blair, Sunny Chang, Ann Bolcavage
  • Patent number: 11952317
    Abstract: An example article includes a substrate and a barrier coating on the substrate. The barrier coating includes a matrix including a rare-earth disilicate extending from an inner interface facing the substrate to an outer surface opposite the inner interface. The barrier coating includes a graded volumetric distribution of rare-earth oxide rich (REO-rich) phase regions in the matrix along a direction from the inner interface to the outer surface. The graded volumetric distribution defines a first volumetric density of the REO-rich phase regions at a first region of the matrix adjacent the outer surface. The graded volumetric distribution defines a second volumetric density of the REO-rich phase regions at a second region of the matrix adjacent the inner surface. The second volumetric density is different from the first volumetric density. An example technique includes forming the barrier coating on the substrate of a component.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: April 9, 2024
    Assignees: Rolls-Royce Corporation, Rolls-Royce plc
    Inventors: Ngunjoh Lawrence Ndamka, Li Li, Stephanie Gong, Ann Bolcavage, Taylor K. Blair, Robert Golden
  • Patent number: 11851770
    Abstract: An article that includes a substrate; a first layer including yttria and zirconia or hafnia, where the first layer has a columnar microstructure and includes predominately the zirconia or hafnia; a second layer on the first layer, the second layer including zirconia or hafnia, ytterbia, samaria, and at least one of lutetia, scandia, ceria, neodymia, europia, and gadolinia, where the second layer includes predominately zirconia or hafnia, and where the second layer has a columnar microstructure; and a third layer on the second layer, the third layer including zirconia or hafnia, ytterbia, samaria, and a rare earth oxide including at least one of lutetia, scandia, ceria, neodymia, europia, and gadolinia, where the third layer has a dense microstructure and has a lower porosity than the second layer.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: December 26, 2023
    Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies, Inc.
    Inventors: Matthew R. Gold, Michael Cybulsky, Stephanie Gong, Li Li
  • Publication number: 20230397914
    Abstract: According to an aspect, an implant for vascular treatment may include a wire having a first section and a second section, the first section and the second section each movable from a delivery state to a deployed state in response to removal of external pressure on the wire, the first section, in the deployed state, including at least one loop securable to a target anatomical location of a subject, the second section, in the deployed state, having a nonlinear shape positionable to at least partially occupy an anatomical vessel with the first section secured to the target anatomical location, and the first section stiffer than the second section.
    Type: Application
    Filed: June 12, 2023
    Publication date: December 14, 2023
    Inventors: Stephanie GONG, Jake LE
  • Patent number: 11624289
    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.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: April 11, 2023
    Assignees: Rolls-Royce Corporation, Rolls-Royce High Temperature Composites, Inc.
    Inventors: Stephanie Gong, Scott Nelson, Sungbo Shim, Li Li, Robert Alexander Sean Golden
  • Patent number: 11512379
    Abstract: In one example, a method for forming a coating system including a bond coat and an environmental barrier coating on a ceramic or CMC substrate, e.g., with an abradable coating on the environmental barrier coating. The method may include depositing a bond coat on a ceramic or ceramic matrix composite (CMC) substrate to form an as-deposited bond coat; heat treating the as-deposited bond coat following the deposition of the as-deposited bond coat on the substrate to form a heat treated bond coat; depositing an environment barrier coating (EBC) layer on the heat treated bond coat to form as deposited EBC layer; and heat treating the as-deposited EBC layer to form a heat treated EBC layer.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: November 29, 2022
    Assignee: Rolls-Royce Corporation
    Inventors: Li Li, Taylor K. Blair, Stephanie Gong
  • Publication number: 20220341335
    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.
    Type: Application
    Filed: April 21, 2021
    Publication date: October 27, 2022
    Inventors: Stephanie Gong, Scott Nelson, Sungbo Shim, Li Li, Robert Alexander Sean Golden
  • Publication number: 20220088679
    Abstract: A method may include controlling, by a computing device, an energy source to form a melt pool at a build surface; and controlling, by the computing device, a material delivery device to direct a powder at the melt pool to form the seal fin comprising a metal matrix composite on the build surface, wherein the metal matrix composite comprises a matrix material and a reinforcement phase.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 24, 2022
    Inventors: Scott Nelson, John Grubbs, Stephanie Gong
  • Publication number: 20220002857
    Abstract: In one example, a method for forming a coating system including a bond coat and an environmental barrier coating on a ceramic or CMC substrate, e.g., with an abradable coating on the environmental barrier coating. The method may include depositing a bond coat on a ceramic or ceramic matrix composite (CMC) substrate to form an as-deposited bond coat; heat treating the as-deposited bond coat following the deposition of the as-deposited bond coat on the substrate to form a heat treated bond coat; depositing an environment barrier coating (EBC) layer on the heat treated bond coat to form as deposited EBC layer; and heat treating the as-deposited EBC layer to form a heat treated EBC layer.
    Type: Application
    Filed: June 28, 2021
    Publication date: January 6, 2022
    Inventors: Li Li, Taylor K. Blair, Stephanie Gong
  • Publication number: 20210007750
    Abstract: Improved thermal detachment driven by leverage from improved electrical locus targeting enabling first button detachment at optimal regions whereby, for example OPTIMA® brands of coils (BALT USA®, Orange County, CA 92618) and their detachment systems are shifted and realigned coaxially and placed closer to the ends of subject coils while being hermetically sealed,
    Type: Application
    Filed: July 13, 2020
    Publication date: January 14, 2021
    Inventors: Jake Le, Stephanie Gong
  • Patent number: 10871078
    Abstract: An article for use in a high-temperature environment that includes a substrate including a superalloy material, a ceramic, or a ceramic matrix composite, and an abradable coating on the substrate, the abradable coating including a rare earth silicate and a dislocator phase, the dislocator phase forms one or more distinct phase regions in the abradable coating and comprises at least one of hafnium diboride (HfB2), zirconium diboride (ZrB2), tantalum nitride (TaN or Ta2N), tantalum carbide (Ta2C), titanium diboride (TiB2), zirconium carbide (ZrC), hafnium carbide (HfC), tantalum diboride (TaB2), hafnium nitride (HfN), or niobium carbide (NbC).
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: December 22, 2020
    Assignees: Rolls-Royce Corporation, Rolls-Royce plc
    Inventors: Ngunjoh Lawrence Ndamka, Li Li, Stephanie Gong, Sunny Chang, Ann Bolcavage, Taylor K. Blair
  • Publication number: 20200385871
    Abstract: An article that includes a substrate; a first layer including yttria and zirconia or hafnia, where the first layer has a columnar microstructure and includes predominately the zirconia or hafnia; a second layer on the first layer, the second layer including zirconia or hafnia, ytterbia, samaria, and at least one of lutetia, scandia, ceria, neodymia, europia, and gadolinia, where the second layer includes predominately zirconia or hafnia, and where the second layer has a columnar microstructure; and a third layer on the second layer, the third layer including zirconia or hafnia, ytterbia, samaria, and a rare earth oxide including at least one of lutetia, scandia, ceria, neodymia, europia, and gadolinia, where the third layer has a dense microstructure and has a lower porosity than the second layer.
    Type: Application
    Filed: August 25, 2020
    Publication date: December 10, 2020
    Inventors: Matthew R. Gold, Michael Cybulsky, Stephanie Gong, Li Li
  • Patent number: 10858725
    Abstract: A method that includes introducing a suspension comprising a coating material and a carrier into a heated plume of a thermal spray device. The coating material may include silicon or a silicon alloy. The method further includes directing the coating material using the heated plume toward a substrate that includes a ceramic or a ceramic matrix composite and depositing the coating material to form a bond coat directly on the substrate such that the bond coat defines a porosity of less than about 3 percent by volume.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: December 8, 2020
    Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies, Inc.
    Inventors: Li Li, Stephanie Gong, Matthew R. Gold, Ann Bolcavage
  • Patent number: 10851656
    Abstract: An article includes a substrate, a bond coat on the substrate, and a multilayer environmental barrier coating (EBC) on the bond coat. The multilayer EBC includes a first EBC layer defining a first thickness and a second EBC layer defining a second thickness. The first EBC layer includes a first rare earth disilicate and a first concentration of a sintering aid that includes alumina. The second EBC layer includes a second rare earth disilicate and a second concentration of the sintering aid that includes alumina, less than the first concentration of the sintering aid.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: December 1, 2020
    Assignees: Rolls-Royce Corporation, Rolls-Royce PLC
    Inventors: Stephanie Gong, Taylor K. Blair, Ngunjoh Lawrence Ndamka, Li Li, Sunny Chang, Ann Bolcavage
  • Publication number: 20200123071
    Abstract: An example article includes a substrate and a barrier coating on the substrate. The barrier coating includes a matrix including a rare-earth disilicate extending from an inner interface facing the substrate to an outer surface opposite the inner interface. The barrier coating includes a graded volumetric distribution of rare-earth oxide rich (REO-rich) phase regions in the matrix along a direction from the inner interface to the outer surface. The graded volumetric distribution defines a first volumetric density of the REO-rich phase regions at a first region of the matrix adjacent the outer surface. The graded volumetric distribution defines a second volumetric density of the REO-rich phase regions at a second region of the matrix adjacent the inner surface. The second volumetric density is different from the first volumetric density. An example technique includes forming the barrier coating on the substrate of a component.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 23, 2020
    Inventors: Ngunjoh Lawrence Ndamka, Li Li, Stephanie Gong, Ann Bolcavage, Taylor K. Blair, Robert Golden
  • Publication number: 20200023403
    Abstract: In some examples, an article may include a substrate and a coating on the substrate. The substrate may include a superalloy, a ceramic, or a ceramic matrix composite. The coating may include a layer comprising a matrix material and a plurality of nanoparticles. The matrix material may include at least one of silica, zirconia, alumina, titania, or chromia, and the plurality of nanoparticles may include nanoparticles including at least one of yttria, zirconia, alumina, or chromia. In some examples, an average diameter of the nanoparticles is less than about 400 nm.
    Type: Application
    Filed: April 19, 2019
    Publication date: January 23, 2020
    Inventors: Sungbo Shim, Sean E. Landwehr, Stephanie Gong, Jeffrey P. Youngblood, Rodney Trice