公开(公告)号：US20240279129A1

公开(公告)日：2024-08-22

申请号：US18172810

申请日：2023-02-22

Applicant: Honeywell International Inc.

Inventor： Mehrad Mehr ,  Bahram Jadidian

IPC: C04B41/45 ,  C04B35/83 ,  C04B41/50 ,  C04B41/52 ,  C04B41/87 ,  C04B41/89 ,  C23C16/26 ,  C23C16/56

CPC classification number: C04B41/4558 ,  C04B35/83 ,  C04B41/4531 ,  C04B41/4539 ,  C04B41/4552 ,  C04B41/5059 ,  C04B41/5061 ,  C04B41/522 ,  C04B41/87 ,  C04B41/89 ,  C23C16/26 ,  C23C16/56 ,  C04B2235/422 ,  C04B2235/5248

Abstract: An example method for forming a high temperature coating includes depositing a carbon layer on to a surface of a composite article using chemical vapor deposition. The composite substrate includes a composite substrate including a carbon matrix. The surface of the composite article includes one or more surface voids. The method further includes applying a metal slurry to the surface of the composite article following the deposition of the carbon layer and reacting a metal of the metal slurry with carbon of the carbon layer to form an antioxidant layer of a metal carbide on the composite article.

公开(公告)号：US20240140595A1

公开(公告)日：2024-05-02

申请号：US18050831

申请日：2022-10-28

Applicant: Honeywell International Inc.

Inventor： Mehrad Mehr ,  Bahram Jadidian ,  Neil Murdie

IPC: B64C25/42 ,  B23K1/00 ,  B23K35/32

CPC classification number: B64C25/42 ,  B23K1/0008 ,  B23K35/322 ,  B23K2101/006

Abstract: An apparatus includes a first component comprising a carbon composite substrate. A high temperature coating is disposed on the surface of the carbon composite substrate. The high temperature coating includes a bond layer of a metal carbide on the surface of the substrate. The apparatus includes a second component, and braze material joining the surface of the first component to the second component. In some examples, a brake assembly may include a rotor having a surface configured to interface with another component of the brake assembly. The brake assembly includes an insert joined to the surface of the rotor without a mechanical fastener, and the insert defines a tough mechanical contact surface configured to protect the rotor.

公开(公告)号：US20240093821A1

公开(公告)日：2024-03-21

申请号：US17933392

申请日：2022-09-19

Applicant: Honeywell International Inc.

Inventor： Mehrad Mehr ,  Robert Mantz ,  Bahram Jadidian

IPC: F16L51/00 ,  F16L25/00

CPC classification number: F16L51/00 ,  F16L25/0072

Abstract: An assembly includes a first tube. The first tube includes a first end configured to receive a second tube. The second tube includes a first end configured to slidably translate into the first end of the first tube and to receive an insert. The insert is configured to be disposed within a first portion of the second tube that is near the first end of the second tube. The first tube, the second tube, and the insert form a seal. The coefficient of thermal expansion (CTE) of the first tube is similar to the CTE of the insert and different from the CTE of the second tube.

公开(公告)号：US11859287B2

公开(公告)日：2024-01-02

申请号：US17443683

申请日：2021-07-27

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： John Downs ,  Mehrad Mehr ,  Bahram Jadidian

IPC: C23C28/00 ,  C04B41/00 ,  C04B41/50 ,  C04B41/88 ,  F01D25/00

CPC classification number: C23C28/34 ,  C04B41/009 ,  C04B41/0072 ,  C04B41/5024 ,  C04B41/88 ,  F01D25/005 ,  F05D2220/32 ,  F05D2230/31 ,  F05D2300/611

Abstract: A 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 formed directly on the substrate, and a thermal barrier coating layer including a porous rare earth monosilicate material having a metal silicate material infiltrated within at least a portion of the pores formed directly on the environmental barrier coating layer.

公开(公告)号：US20230271150A1

公开(公告)日：2023-08-31

申请号：US17931441

申请日：2022-09-12

Applicant: Honeywell International Inc.

Inventor： Stephen Yates ,  Amanda Childers ,  Mehrad Mehr ,  Jeffrey Spencer ,  Jason Smoke ,  Abigail Parsons

IPC: B01J6/00 ,  C01B3/24

CPC classification number: B01J6/008 ,  C01B3/24 ,  C01B2203/0272 ,  C01B2203/1241

Abstract: A thermal process system includes a retort assembly, a heating assembly, and a vessel housing. The retort assembly includes a retort chamber and is configured to substantially form a containment boundary to contain one or more gases in the retort chamber during a thermal process. The heating assembly includes one or more heating elements and is configured to heat the retort chamber. The vessel housing is positioned around the retort chamber and the one or more heating elements and configured to form a pressure boundary to maintain a pressure within the retort chamber and reduce a pressure across the retort chamber.

公开(公告)号：US20220250996A1

公开(公告)日：2022-08-11

申请号：US17248760

申请日：2021-02-05

Applicant: Honeywell International Inc.

Inventor： Mehrad Mehr ,  Bahram Jadidian

IPC: C04B41/52 ,  C04B35/83 ,  C04B41/00 ,  C04B41/45 ,  C04B41/50 ,  C04B41/89 ,  C04B41/87

Abstract: A method includes forming a crystallized metal carbide undercoat on a surface of a carbon-carbon composite substrate. The method further includes forming an overcoat on a surface of the undercoat. The overcoat includes a plurality of crystallized ultra-high melting point overcoat layers. Each overcoat layer is sequentially formed by applying a mixture to a surface of an underlying layer and heating the mixture. The mixture includes a plurality of ultra-high melting point refractory ceramic particles and a pre-ceramic polymer. The mixture is heated to a heat treatment temperature to pyrolyze the pre-ceramic polymer and form the overcoat layer in an inert atmosphere or under vacuum. As a result, the overcoat layer includes a crystallized ultra-high melting point polymer-derived ceramic matrix that includes the plurality of ultra-high melting point refractory ceramic particles.

公开(公告)号：US20250075303A1

公开(公告)日：2025-03-06

申请号：US18461099

申请日：2023-09-05

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Mehrad Mehr ,  Bahram Jadidian

IPC: C23C4/18 ,  C23C24/04 ,  C23C24/10 ,  C23C28/00 ,  F01D5/28

Abstract: Components for a gas turbine engine and method for producing the components are provided. The components may include a substrate and a thermal barrier coating (TBC) having at least a first layer secured to a surface of the substrate. The first layer is formed of a ceramic material with a first microstructure that includes a plurality of interconnected unit cells having struts that have a relative density of greater than 98 percent and a closed cell porosity of 10 percent or greater. The TBC is secured to the substrate subsequent to formation of the TBC.

公开(公告)号：US20240351958A1

公开(公告)日：2024-10-24

申请号：US18302653

申请日：2023-04-18

Applicant: Honeywell International Inc.

Inventor： Mehrad Mehr ,  Bahram Jadidian

IPC: C04B41/45 ,  C04B35/83 ,  C04B38/00 ,  C04B41/50 ,  C04B41/87

CPC classification number: C04B41/4556 ,  C04B35/83 ,  C04B38/0058 ,  C04B38/0067 ,  C04B41/5059 ,  C04B41/5061 ,  C04B41/87 ,  C04B2235/422 ,  C04B2235/5248

Abstract: An article includes a substrate. The substrate includes at least two phases. The first phase includes a carbon-carbon (C/C) composite. The second phase includes a metal carbide. The second phase is disposed within a plurality of interconnected pores of the first phase, wherein the second phase extends from a surface of the substrate to a depth of at least 300 micrometers below the surface of the substrate.

公开(公告)号：US12024476B2

公开(公告)日：2024-07-02

申请号：US16797610

申请日：2020-02-21

Applicant: Honeywell International Inc.

Inventor： Bahram Jadidian ,  Richard George Rateick, Jr. ,  Mehrad Mehr ,  Donald Olson

IPC: B32B9/00 ,  C04B35/83 ,  C04B41/00 ,  C04B41/45 ,  C04B41/50 ,  C04B41/52 ,  C04B41/89 ,  F16D65/12 ,  F16D69/02 ,  B82Y30/00

CPC classification number: C04B41/5024 ,  C04B35/83 ,  C04B41/009 ,  C04B41/4515 ,  C04B41/4539 ,  C04B41/5059 ,  C04B41/5061 ,  C04B41/52 ,  C04B41/89 ,  F16D65/125 ,  F16D69/023 ,  B82Y30/00 ,  C04B2235/66 ,  C04B2235/9607 ,  C04B2235/9684 ,  Y10T428/30

Abstract: An article including carbon-carbon composite substrate may be treated with an antioxidant coating prior to use in an oxidizing environment. The antioxidant coating may be configured to reduce oxidation at an external surface of the C—C composition and reduce ingress of oxidants into pores or other open passages defined by the C—C composite substrate to avoid internal oxidation. An example article includes a C—C composite substrate, a bond coat, and an antioxidant coating. The C—C composite substrate defines a friction surface and a non-friction surface. The bond coat is disposed on the non-friction surface. The antioxidant coating may be disposed on at least a portion of the bond coat. The antioxidant coating may include ytterbium disilicate and a sintering aid.

公开(公告)号：US20240208876A1

公开(公告)日：2024-06-27

申请号：US18146545

申请日：2022-12-27

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： John Downs ,  Kevin S. Blinn ,  Bahram Jadidian ,  Mehrad Mehr

IPC: C04B41/50 ,  C04B41/00 ,  C04B41/45 ,  C04B41/52 ,  C04B41/89

CPC classification number: C04B41/5024 ,  C04B41/0072 ,  C04B41/009 ,  C04B41/4539 ,  C04B41/52 ,  C04B41/89

Abstract: Components and methods for producing such components are provided. The component comprises a substrate having a ceramic material, and a coating system on a surface of the substrate. The coating system includes one or more layers defining a composition gradient. A first portion of the coating system closest to the surface of the substrate has a composition comprising at least 95 wt. % of a rare earth disilicate, a second portion of the coating system furthest from the surface of the substrate has a composition comprising at least 50 wt. % of a rare earth monosilicate, and a third portion between the first portion and the second portion has a composition comprising both the rare earth disilicate and the rare earth monosilicate.