公开(公告)号：US20250145541A1

公开(公告)日：2025-05-08

申请号：US18504894

申请日：2023-11-08

Applicant: Honeywell International Inc.

Inventor： Mehrad Mehr ,  Bahram Jadidian ,  Kevin Blinn

IPC: C04B41/50 ,  C04B35/591 ,  C04B35/65 ,  C04B41/45 ,  C04B41/87

Abstract: In some examples, a method for making a refractory component includes depositing carbon on a surface of a refractory substrate. The carbon fills surface voids on the surface of the refractory substrate. A melting point of the refractory substrate is greater than or equal to about 1500 degrees Celsius (° C.). The method includes applying a metal slurry to a surface of the refractory substrate following the deposition of the carbon and reacting a metal of the metal slurry with the carbon to form a metal carbide phase within the surface voids of the refractory substrate.

公开(公告)号：US12172934B2

公开(公告)日：2024-12-24

申请号：US17303643

申请日：2021-06-03

Applicant: Honeywell International Inc.

Inventor： Bahram Jadidian ,  Mehrad Mehr

IPC: C04B41/45 ,  C04B35/83 ,  C04B41/00 ,  C04B41/50 ,  C04B41/53 ,  C04B41/87 ,  C04B41/91

Abstract: A method for forming a high temperature coating includes applying carbon powder to a surface of a carbon/carbon (C/C) composite substrate to force the carbon powder into one or more surface voids of the surface of the C/C composite substrate. The carbon powder has a substantially same composition and morphology as a surface portion of the C/C composite substrate. The method includes applying a metal slurry to the surface of the C/C composite substrate following the application of the carbon powder and reacting a metal of the metal slurry with carbon of the carbon powder and carbon of the surface portion of the C/C composite substrate to form a metal-rich antioxidant layer of a metal carbide on the C/C composite substrate.

公开(公告)号：US12071383B2

公开(公告)日：2024-08-27

申请号：US17302009

申请日：2021-04-21

Applicant: Honeywell International Inc.

Inventor： Mehrad Mehr ,  Bahram Jadidian

IPC: C04B41/87 ,  C04B40/02 ,  C04B41/00 ,  C04B41/50 ,  C04B41/89

CPC classification number: C04B41/87 ,  C04B40/0272 ,  C04B41/0072 ,  C04B41/5024 ,  C04B41/5051 ,  C04B41/89 ,  C04B2235/3427 ,  C04B2235/3817 ,  C04B2235/6581

Abstract: A method for forming a high temperature coating includes forming a pre-sintered ceramic coating on a ceramic composite substrate. The pre-sintered ceramic coating includes a plurality of ceramic particles. The method further includes sintering at least a portion of the pre-sintered ceramic coating by heating the portion of the pre-sintered ceramic coating to a sintering temperature of the plurality of ceramic particles using joule heating. The sintering temperature is greater than about 1000 degrees Celsius (° C.).

公开(公告)号：US20240239713A1

公开(公告)日：2024-07-18

申请号：US18153871

申请日：2023-01-12

Applicant: Honeywell International Inc.

Inventor： Mehrad Mehr ,  Bahram Jadidian

IPC: C04B35/628 ,  C04B35/565 ,  C04B41/45

CPC classification number: C04B35/62844 ,  C04B35/565 ,  C04B41/4515 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/5264

Abstract: The disclosure describes vacuum processing of a fiber tow. In some examples, the disclosure describes generating a metal carbide fiber tow by applying metal to a carbon fiber tow and vacuum processing the carbon fiber tow to convert at least a portion of the carbon fiber tow to a metal carbide fiber tow.

公开(公告)号：US11866377B2

公开(公告)日：2024-01-09

申请号：US17302014

申请日：2021-04-21

Applicant: Honeywell International Inc.

Inventor： Mehrad Mehr ,  Bahram Jadidian

IPC: B32B18/00 ,  C04B37/00 ,  F16D65/12 ,  F16D65/02

CPC classification number: C04B37/003 ,  B32B18/00 ,  F16D65/125 ,  C04B2237/062 ,  C04B2237/38 ,  F16D2065/132 ,  F16D2200/0047 ,  F16D2250/0061 ,  F16D2250/0092

Abstract: An article for a high temperature environment includes a first ceramic composite substrate, a second ceramic composite substrate, and a high temperature interface between a first surface of the first ceramic composite substrate and a second surface of the second ceramic composite substrate. The high temperature interface includes at least one high temperature interface layer that includes a ceramic matrix and a plurality of fibers distributed through the ceramic matrix.

公开(公告)号：US11623896B2

公开(公告)日：2023-04-11

申请号：US16056060

申请日：2018-08-06

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Reza Oboodi ,  Eric Passman ,  Bahram Jadidian

IPC: C04B41/52 ,  F01D5/28 ,  C04B41/89 ,  C04B41/00 ,  B05D7/00 ,  B05D5/10 ,  B05D5/12

Abstract: Methods for fabricating protective coating systems for gas turbine engine applications are provided. An exemplary method of applying a protective coating to a substrate includes the steps of providing a substrate formed of a ceramic matrix composite material, forming a first coating layer directly on to the substrate and comprising an oxygen barrier material, a compliance material, or a bonding material and forming a second coating layer directly on to the first coating layer and comprising a thermal barrier material. The method optionally includes forming a third coating layer partially directly on to the second coating layer and partially within at least some of the plurality of pores of the second coating layer.

公开(公告)号：US20230063923A1

公开(公告)日：2023-03-02

申请号：US17445889

申请日：2021-08-25

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： John Downs ,  Bahram Jadidian

IPC: C04B41/52 ,  C23C28/04 ,  C04B35/80 ,  C04B41/50 ,  C04B41/00 ,  C04B41/89 ,  C04B41/87 ,  F01D9/02

Abstract: A multilayer protective coating system includes a turbine engine component substrate formed of a ceramic matrix composite material, an environmental barrier coating layer including a rare earth disilicate material deposited directly on the substrate, and a plurality of pairs of alternating layers of the rare earth disilicate material and a rare earth monosilicate material deposited and sintered directly on the environmental barrier coating layer. Each layer of the plurality of pairs of alternating layers is relative less thick as compared with the environmental barrier coating layer.

公开(公告)号：US11578707B1

公开(公告)日：2023-02-14

申请号：US17732295

申请日：2022-04-28

Applicant: Honeywell International Inc.

Inventor： John Downs ,  Mahdi Mohajeri ,  Bahram Jadidian

IPC: F03G7/06

Abstract: A method for using a shape memory alloy (SMA) with a non-evaporable getter (NEG) employed in a vacuum device is disclosed. The method comprises coupling a NEG component to a SMA component to form an NEG/SMA assembly pair; heating the NEG/SMA assembly pair to activate the NEG component; and packaging the activated NEG component with the SMA component to form an NEG/SMA package having a gas tight seal. The method further comprises installing the NEG/SMA package in the vacuum device; and heating the installed NEG/SMA package such that the SMA component is actuated to expose the activated NEG component to a vacuum chamber in the vacuum device.

公开(公告)号：US20220388917A1

公开(公告)日：2022-12-08

申请号：US17303643

申请日：2021-06-03

Applicant: Honeywell International Inc.

Inventor： Bahram Jadidian ,  Mehrad Mehr

IPC: C04B41/45 ,  C04B35/83 ,  C04B41/00 ,  C04B41/53 ,  C04B41/50 ,  C04B41/91 ,  C04B41/87

Abstract: A method for forming a high temperature coating includes applying carbon powder to a surface of a carbon/carbon (C/C) composite substrate to force the carbon powder into one or more surface voids of the surface of the C/C composite substrate. The carbon powder has a substantially same composition and morphology as a surface portion of the C/C composite substrate. The method includes applying a metal slurry to the surface of the C/C composite substrate following the application of the carbon powder and reacting a metal of the metal slurry with carbon of the carbon powder and carbon of the surface portion of the C/C composite substrate to form a metal-rich antioxidant layer of a metal carbide on the C/C composite substrate.

公开(公告)号：US20220098122A1

公开(公告)日：2022-03-31

申请号：US17444677

申请日：2021-08-09

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Donald Martin Olson ,  Reza Oboodi ,  James Piascik ,  Terence Whalen ,  Bahram Jadidian

IPC: C04B41/00 ,  B05D3/10 ,  B32B18/00 ,  C04B41/87

Abstract: This disclosure provides a method of pressure sintering an environmental barrier coating on a surface of a ceramic substrate to form an article. The method includes the steps of etching the surface of the ceramic substrate to texture the surface, disposing an environmental barrier coating on the etched surface of the ceramic substrate wherein the environmental barrier coating includes a rare earth silicate, and pressure sintering the environmental barrier coating on the etched surface of the ceramic substrate in an inert or nitrogen atmosphere at a pressure of greater than atmospheric pressure such that at least a portion of the environmental barrier coating is disposed in the texture of the surface of the ceramic substrate thereby forming the article.