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：US11370717B2

公开(公告)日：2022-06-28

申请号：US16811726

申请日：2020-03-06

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Reza Oboodi ,  Eric Passman ,  Bahram Jadidian

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

Abstract: A protective coating system includes a substrate that has an exterior surface exhibiting a degree of valley/hill surface irregularity including a plurality of hills and a plurality of valleys and a first coating layer formed directly on to the exterior surface of the substrate and that conforms to the exterior surface of the substrate such that the first coating layer has a non-uniform coating thickness over the substrate. The protective coating system further includes a second coating layer formed directly on to the exterior surface of the first coating layer. The second coating layer includes a plurality of pores within the second coating layer. Still further, the protective coating system includes a third coating layer formed within at least some of the plurality of pores within the second coating layer.

公开(公告)号：US11084761B2

公开(公告)日：2021-08-10

申请号：US16131279

申请日：2018-09-14

Applicant: HONEYWELL INTERNATIONAL INC.

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

IPC: C04B41/91 ,  B05D3/04 ,  B05D3/10 ,  C04B41/00 ,  C04B41/50 ,  C04B41/53 ,  C04B41/87 ,  F01D25/00

Abstract: A method of pressure sintering an environmental barrier coating on a surface of a ceramic substrate to form an article 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.

公开(公告)号：US20190292678A1

公开(公告)日：2019-09-26

申请号：US15928569

申请日：2018-03-22

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： James Piascik ,  Gangmin Cao ,  Amer Aizaz ,  Jingkang Lv ,  Bahram Jadidian

IPC: C25D15/00 ,  C10M103/04 ,  C10M103/06 ,  C25D3/56

Abstract: Methods for depositing wear resistant NiW plating systems on metallic components are provided. In various embodiments, the method includes the step or process of preparing a NiW plating bath containing a particle suspension. The NiW plating bath is prepared by introducing wear resistant particles into the NiW plating path and adding at least one charged surfactant. The first type of wear resistant particles and the first charged surfactant may be contacted when introduced into the NiW plating bath or prior to introduction into the NiW plating bath. The at least one charged surfactant binds with the wear resistant particles to form a particle-surfactant complex. The wear resistant NiW plating system is then electrodeposited onto a surface of a component at least partially submerged in the NiW plating bath. The resulting wear resistant NiW plating system comprised of a NiW matrix in which the wear resistant particles are embedded.

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.

公开(公告)号：US20240181413A1

公开(公告)日：2024-06-06

申请号：US18060887

申请日：2022-12-01

Applicant: Honeywell International Inc.

Inventor： Mehrad Mehr ,  Bahram Jadidian

IPC: B01J6/00 ,  B01J19/00 ,  H05B3/14

CPC classification number: B01J6/008 ,  B01J19/0013 ,  H05B3/141 ,  B01J2219/00076 ,  H05B2203/016 ,  H05B2203/022 ,  H05B2214/03

Abstract: In some examples, a heating assembly includes one or more heating rods, a first bus bar, and a second bus bar. Each heating rod of the one or more heating rods defines a first end and a second end, and includes a composite that includes a silicon carbide (SiC) matrix. The first bus bar is coupled to the first end of at least one heating rod and the second bus bar is coupled to the second end of the at least one heating rod.

公开(公告)号：US20240141179A1

公开(公告)日：2024-05-02

申请号：US18182145

申请日：2023-03-10

Applicant: Honeywell International Inc.

Inventor： Mehrad Mehr ,  Bahram Jadidian

IPC: C09D5/32 ,  C09D1/00 ,  C09D5/00 ,  C09D5/26

CPC classification number: C09D5/32 ,  C09D1/00 ,  C09D5/00 ,  C09D5/26

Abstract: A space vehicle including a structural component defining a carbon-carbon composite substrate. A high temperature coating on a surface of the carbon-carbon composite substrate. The high temperature coating includes a crystallized metal carbide undercoat on and an overcoat on a surface of the undercoat. The overcoat includes a high emissivity layer. The high emissivity layer has a higher emissivity than the crystallized metal carbide undercoat, and the high emissivity layer includes a complex oxide.