公开(公告)号：US10822696B2

公开(公告)日：2020-11-03

申请号：US15378232

申请日：2016-12-14

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Cathleen Ann Hoel ,  Kristen Hall Brosnan ,  Curtis Alan Johnson ,  Shankar Sivaramakrishnan

IPC: C23C4/00 ,  C23C16/455 ,  C09D1/00 ,  C04B35/48 ,  C04B35/622 ,  C23C4/18 ,  C23C4/11 ,  C04B41/52

Abstract: An article for service at high temperatures comprises a substrate comprising a first region and a second region; and a coating disposed over the substrate. The coating comprises a first portion disposed over the first region of the substrate and a second portion disposed over the second region of the substrate. The coating includes a layer comprising a ceramic material and further including a quantity of surface-connected voids, and a protective agent is disposed within at least some of the surface-connected voids of the layer. Within the first portion, the agent is present within the layer at a concentration of less than or equal to 4 percent by volume of the layer exclusive of the voids, while, within the second portion, the agent is present within the layer at a concentration up to the carrying capacity of the layer. Methods for forming the article are also presented.

公开(公告)号：US10538460B2

公开(公告)日：2020-01-21

申请号：US15922587

申请日：2018-03-15

Applicant: General Electric Company

Inventor： Cathleen Ann Hoel ,  Xi Yang ,  Michael Joseph O'Brien

IPC: C04B35/10 ,  C04B35/48 ,  C04B35/632 ,  C04B35/64 ,  B28B1/00 ,  C04B35/14 ,  B33Y70/00

Abstract: A ceramic slurry for forming a ceramic article includes a binder, a first plurality of ceramic particles having a first morphology, a second plurality of ceramic particles having a second morphology that is different from the first morphology; and a photoinitiator. A method for using this slurry for fabricating ceramic articles is presented as well.

公开(公告)号：US20180119270A1

公开(公告)日：2018-05-03

申请号：US15338979

申请日：2016-10-31

Applicant: General Electric Company

Inventor： Cathleen Ann Hoel ,  Kristen Hall Brosnan

IPC: C23C14/08 ,  C23C4/134 ,  C23C4/11 ,  C23C14/22

CPC classification number: F23R3/002 ,  C23C4/11 ,  C23C4/134 ,  C23C4/137 ,  C23C4/18 ,  F01D5/288 ,  F05D2230/312 ,  F05D2230/313 ,  F05D2300/2112 ,  F05D2300/5023 ,  Y02T50/671 ,  Y02T50/6765

Abstract: Embodiments of the present disclosure are directed to an article and methods of forming the article. The article includes a thermal barrier coating disposed on a substrate. The thermal barrier coating includes a thermal barrier material and partially filled surface-connected columnar voids. The partially filled surface-connected columnar voids are interspersed with the thermal barrier material in the thermal barrier coating. At least some of the partially filled surface-connected columnar voids include a calcium-magnesium-aluminum-silicon-oxide (CMAS)-reactive material disposed within, such that the CMAS-reactive material is physically separated from the substrate by a columnar cavity having an aspect ratio greater than 3.

公开(公告)号：US20240033092A1

公开(公告)日：2024-02-01

申请号：US17877486

申请日：2022-07-29

Applicant: General Electric Company

Inventor： Gautam Parthasarathy ,  Daniel J. Erno ,  Chitresh Bhushan ,  Cathleen Ann Hoel ,  Sara Kelly Peterson ,  Jessica Susanne Martinez ,  Brian Michael Davis ,  Steven Jude Duclos ,  Fiona Ginty

IPC: A61F2/30

CPC classification number: A61F2/30771 ,  A61F2002/3093 ,  A61F2002/30968 ,  A61F2310/00179 ,  A61F2310/00329 ,  A61F2310/00011 ,  A61F2002/30112

Abstract: The present discussion relates to the design fabrication and use of synthetic scaffold structure for bone growth. In certain implementations the scaffold structures are comprised of a plurality of repeating structures each defined by a local topology. The local topologies are defined at a subset of points in their respective volumes by various parameters including, but not limited to, shape index, curvedness, mean curvature, and Gauss curvature.

公开(公告)号：US11578002B2

公开(公告)日：2023-02-14

申请号：US16802616

申请日：2020-02-27

Applicant: General Electric Company

Inventor： Michael Joseph O'Brien ,  Cathleen Ann Hoel

IPC: C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  C04B35/117 ,  B33Y10/00 ,  B29C64/165 ,  B33Y70/10 ,  C08F222/10 ,  B28B1/00 ,  C04B35/634 ,  C04B35/638 ,  C04B35/64 ,  B29K83/00 ,  B29K509/02

Abstract: Ceramic slurries may include ceramic particles, a photoreactive-photostable hybrid binder, and a photoinitiator. The photoreactive-photostable hybrid binder may include a photoreactive organic resin component, a photoreactive siloxane component, and one or more photostable siloxane components. Methods of forming a ceramic part may include curing a portion of a ceramic slurry by exposing the portion of the ceramic slurry to light to form a green ceramic part, and partially firing the green ceramic part to form a brown ceramic part. The brown ceramic part may be sintered at or above a sintering temperature of the ceramic particles to form a ceramic part, wherein sintering includes heating the brown ceramic part to a sufficient temperature to promote reaction bonding that converts silica from the photoreactive-photostable hybrid binder into silicates that bond with the ceramic particles.

公开(公告)号：US11572313B2

公开(公告)日：2023-02-07

申请号：US16802632

申请日：2020-02-27

Applicant: General Electric Company

Inventor： Michael Joseph O'Brien ,  Cathleen Ann Hoel

IPC: C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  C04B35/117 ,  B33Y10/00 ,  B29C64/165 ,  B33Y70/10 ,  C08F222/10 ,  B28B1/00 ,  B28B11/24 ,  C04B35/634 ,  C04B35/638 ,  C04B35/64 ,  B29K83/00 ,  B29K509/02

Abstract: Ceramic slurries may include ceramic particles, a photoreactive-photostable hybrid binder, and a photoinitiator. The photoreactive-photostable hybrid binder may include a photoreactive organic resin component, a photoreactive siloxane component, and one or more photostable siloxane components. Methods of forming a ceramic part may include curing a portion of a ceramic slurry by exposing the portion of the ceramic slurry to light to form a green ceramic part, and partially firing the green ceramic part to form a brown ceramic part. The brown ceramic part may be sintered at or above a sintering temperature of the ceramic particles to form a ceramic part, wherein sintering includes heating the brown ceramic part to a sufficient temperature to promote reaction bonding that converts silica from the photoreactive-photostable hybrid binder into silicates that bond with the ceramic particles.

公开(公告)号：US20210269362A1

公开(公告)日：2021-09-02

申请号：US16802632

申请日：2020-02-27

Applicant: General Electric Company

Inventor： Michael Joseph O'Brien ,  Cathleen Ann Hoel

IPC: C04B35/117 ,  C08F222/10 ,  C04B35/634 ,  C04B35/638 ,  C04B35/64 ,  B33Y10/00 ,  B33Y70/10 ,  B28B1/00 ,  B28B11/24 ,  B29C64/165

Abstract: Ceramic slurries may include ceramic particles, a photoreactive-photostable hybrid binder, and a photoinitiator. The photoreactive-photostable hybrid binder may include a photoreactive organic resin component, a photoreactive siloxane component, and one or more photostable siloxane components. Methods of forming a ceramic part may include curing a portion of a ceramic slurry by exposing the portion of the ceramic slurry to light to form a green ceramic part, and partially firing the green ceramic part to form a brown ceramic part. The brown ceramic part may be sintered at or above a sintering temperature of the ceramic particles to form a ceramic part, wherein sintering includes heating the brown ceramic part to a sufficient temperature to promote reaction bonding that converts silica from the photoreactive-photostable hybrid binder into silicates that bond with the ceramic particles.

公开(公告)号：US20180057414A1

公开(公告)日：2018-03-01

申请号：US15251991

申请日：2016-08-30

Applicant: General Electric Company

Inventor： Michael Joseph O'Brien ,  Cathleen Ann Hoel

IPC: C04B35/632 ,  C04B35/10 ,  C04B35/638 ,  C04B35/622 ,  B28B1/00 ,  B28B11/24 ,  B33Y10/00 ,  B33Y70/00

CPC classification number: C04B35/6325 ,  B28B1/001 ,  B28B11/243 ,  B33Y10/00 ,  B33Y70/00 ,  C04B35/10 ,  C04B35/62218 ,  C04B35/638 ,  C04B2235/3217 ,  C04B2235/3418 ,  C04B2235/3463 ,  C04B2235/483 ,  C04B2235/661

Abstract: The subject matter disclosed herein relates generally to light-curable ceramic slurries, and more specifically, to hybrid binders for light-curable ceramic slurries. A light-curable ceramic slurry includes a hybrid binder having an organic resin component and a multi-functional reactive siloxane component that is miscible with the organic resin component. The slurry also includes a photoinitiator having a corresponding photoactivation wavelength range and ceramic particles. The slurry is cured via exposure to light in the photoactivation wavelength range of the photoinitiator such that both the organic resin component and the multi-functional reactive siloxane component of the hybrid binder polymerize.