公开(公告)号：CA2883310A1

公开(公告)日：2014-03-06

申请号：CA2883310

申请日：2013-08-01

Applicant: GEN ELECTRIC

Inventor： ROSENZWEIG LARRY STEVEN ,  RUUD JAMES ANTHONY ,  SIVARAMAKRISHNAN SHANKAR

IPC: C23C4/00 ,  C23C4/02 ,  C23C4/12 ,  C23C4/18

Abstract: A coating comprising a first surface and a second surface is provided. The coating includes a plurality of growth domains. An orientation of at least one growth domain of the plurality of growth domains is non-vertical with respect to the first surface of the coating. One or more growth domains of the plurality of growth domains comprise a plurality of at least partially melted and solidified particles.

公开(公告)号：DE102009044487A1

公开(公告)日：2010-05-20

申请号：DE102009044487

申请日：2009-11-10

Applicant: GEN ELECTRIC

Inventor： ROSENZWEIG LARRY STEVEN ,  GHASRIPOOR FARSHAD ,  SHENG NUO ,  LEBLANC LUC STEPHANE

IPC: B05D3/00 ,  B05D3/08 ,  B05D7/24

公开(公告)号：CA3001202A1

公开(公告)日：2018-10-21

申请号：CA3001202

申请日：2018-04-12

Applicant: GEN ELECTRIC

Inventor： WAN JULIN ,  ROSENZWEIG LARRY STEVEN

IPC: C04B41/87 ,  C04B35/83

Abstract: Methods for preparing an environmental barrier coating and the resulting coating are provided. The methods and products include the incorporation of a continuous ceramic inner layer and a segmented ceramic outer layer on a CMC component. The segmented ceramic outer layer may be formed by thermal spray techniques. The coating is more stable at higher temperatures and provides for a longer lifetime of the coated component.

公开(公告)号：CA2883818C

公开(公告)日：2018-08-14

申请号：CA2883818

申请日：2015-03-05

Applicant: GEN ELECTRIC

Inventor： ROSENZWEIG LARRY STEVEN ,  SARRAFI-NOUR REZA

IPC: C23C30/00 ,  C04B35/50

Abstract: Articles (200) suitable for use as high-temperature machine components include a substrate (202) and an environmental barrier coating (210) disposed over the substrate (202), where the environmental barrier coating (210) includes at least one hermetic self-sealing layer (212) formed from a mixture including an alkaline earth metal aluminosilicate and a rare-earth silicate, and where the at least one hermetic self-sealing layer (212) exhibits substantially no net remnant or residual expansion when subjected to high temperature heat treatment. The environmental barrier coating (210) can further include a bondcoat (204) disposed between the substrate (202) and the hermetic self-sealing layer (212), a topcoat (214) disposed over the hermetic self-sealing layer (212), and/or an intermediate layer (216) disposed between the hermetic self-sealing layer (212) and the bondcoat (204). The intermediate layer (216) can include a barrier material that is substantially inert with respect to silica.

公开(公告)号：CA2913905A1

公开(公告)日：2016-06-12

申请号：CA2913905

申请日：2015-12-03

Applicant: GEN ELECTRIC

Inventor： BROSNAN KRISTEN HALL ,  CHATTERJEE SHAHANA ,  HASZ WAYNE CHARLES ,  NAYAK MOHANDAS ,  POROB DIGAMBER GURUDAS ,  RAMACHANDRAN GOPI CHANDRAN ,  ROSENZWEIG LARRY STEVEN ,  SIVARAMAKRISHNAN SHANKAR ,  SRIVASTAVA ALOK MANI ,  VENKATARAMANI VENKAT SUBRAMANIAM

IPC: C23F15/00

Abstract: Articles having coatings that are resistant to high temperature degradation are described, along with methods for making such articles. The article comprises a coating disposed on a substrate. The coating comprises a plurality of elongated surface-connected voids. The article further includes a protective agent disposed within at least some of the voids of the coating; the protective agent comprises a substance capable of chemically reacting with liquid nominal CMAS to form a solid crystalline product outside the crystallization field of said nominal CMAS. This solid crystalline product has a melting temperature greater than about 1200 degrees Celsius. The method generally includes disposing the protective agent noted above within the surface connected voids of the coating at an effective concentration to substantially prevent incursion of CMAS materials into the voids in which the protective agent is disposed.

公开(公告)号：CA2883818A1

公开(公告)日：2015-09-14

申请号：CA2883818

申请日：2015-03-05

Applicant: GEN ELECTRIC

Inventor： ROSENZWEIG LARRY STEVEN ,  SARRAFI-NOUR REZA

IPC: C23C30/00 ,  C04B35/50

Abstract: Articles (200) suitable for use as high-temperature machine components include a substrate (202) and an environmental barrier coating (210) disposed over the substrate (202), where the environmental barrier coating (210) includes at least one hermetic self-sealing layer (212) formed from a mixture including an alkaline earth metal aluminosilicate and a rare-earth silicate, and where the at least one hermetic self-sealing layer (212) exhibits substantially no net remnant or residual expansion when subjected to high temperature heat treatment. The environmental barrier coating (210) can further include a bondcoat (204) disposed between the substrate (202) and the hermetic self-sealing layer (212), a topcoat (214) disposed over the hermetic self-sealing layer (212), and/or an intermediate layer (216) disposed between the hermetic self-sealing layer (212) and the bondcoat (204). The intermediate layer (216) can include a barrier material that is substantially inert with respect to silica.

公开(公告)号：CA2885301A1

公开(公告)日：2015-03-19

申请号：CA2885301

申请日：2013-07-29

Applicant: GEN ELECTRIC

Inventor： SIVARAMAKRISHNAN SHANKAR ,  RUUD JAMES ANTHONY ,  JOHNSON CURTIS ALAN ,  ROSENZWEIG LARRY STEVEN

IPC: C23C28/00 ,  C23C4/10

Abstract: An article and method of forming the article are disclosed. The article includes a substrate, an overlay bond coat deposited over the substrate and a topcoat deposited over the bond coat. The bond coat of the article includes a plasma affected region proximate to an interface between the bond coat and the topcoat, and the plasma affected region includes an elongated intergranular phase. The method of depositing includes adjusting the plasma spray conditions so as to form the plasma affected region proximate to an interface between the bond coat and the topcoat, and elongated intergranular phases in the plasma affected regions.