公开(公告)号：US11530167B2

公开(公告)日：2022-12-20

申请号：US16551036

申请日：2019-08-26

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Xia Tang ,  Paul Sheedy ,  Tania Bhatia Kashyap ,  Wayde R. Schmidt ,  Daniel G. Goberman

IPC: C04B41/87 ,  B32B9/00 ,  C04B35/565 ,  C04B35/14 ,  C04B35/195 ,  C04B35/56

Abstract: An article includes a ceramic-based substrate and a barrier layer on the ceramic-based substrate. The barrier layer includes a matrix of barium-magnesium alumino-silicate or SiO2, a dispersion of silicon oxycarbide particles in the matrix, and a dispersion of particles, of the other of barium-magnesium alumino-silicate or SiO2, in the matrix.

公开(公告)号：US11466589B2

公开(公告)日：2022-10-11

申请号：US16722050

申请日：2019-12-20

Applicant: United Technologies Corporation

Inventor： Michael R. Kracum ,  Xia Tang ,  Richard Wesley Jackson ,  Zhongfen Ding ,  James T. Beals

IPC: F01D25/08 ,  B05D3/00 ,  C04B41/52 ,  C04B41/89 ,  C04B41/50

Abstract: A gas turbine engine article includes a substrate and an environmental barrier coating (EBC) system disposed on the substrate. The EBC system includes, from the substrate, a dense bond coat layer, a porous bond coat layer, and a topcoat layer in contact with the porous bond coat layer at an interface. The porous bond coat layer includes a matrix, oxygen-scavenging gas-evolution particles dispersed through the matrix, and engineered buffer pores. The oxygen-scavenging gas-evolution particles react with oxygen and generate a gaseous byproduct that diffuses through the interface to escape the EBC system. The engineered buffer pores buffer diffusion of gaseous byproduct to the interface by retaining at least a portion of the gaseous byproduct.

公开(公告)号：US20210246082A1

公开(公告)日：2021-08-12

申请号：US16785085

申请日：2020-02-07

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Richard Wesley Jackson ,  Michael R. Kracum ,  Xia Tang ,  James T. Beals

IPC: C04B41/50 ,  C04B41/45 ,  C04B41/52 ,  C04B41/86 ,  C04B41/89

Abstract: An article includes a ceramic-based substrate and a barrier layer on the ceramic-based substrate. The barrier layer includes a matrix phase and gettering particles in the matrix phase. The gettering particles with an aspect ratio greater than one are aligned such that a maximum dimension of the gettering particles extends along an axis that is generally parallel to the substrate. The barrier layer includes a dispersion of diffusive particles in the matrix phase. A composite material and a method of applying a barrier layer to a substrate are also disclosed.

公开(公告)号：US20210189904A1

公开(公告)日：2021-06-24

申请号：US16722050

申请日：2019-12-20

Applicant: United Technologies Corporation

Inventor： Michael R. Kracum ,  Xia Tang ,  Richard Wesley Jackson ,  Zhongfen Ding ,  James T. Beals

IPC: F01D25/08 ,  B05D3/00

Abstract: A gas turbine engine article includes a substrate and an environmental barrier coating (EBC) system disposed on the substrate. The EBC system includes, from the substrate, a dense bond coat layer, a porous bond coat layer, and a topcoat layer in contact with the porous bond coat layer at an interface. The porous bond coat layer includes a matrix, oxygen-scavenging gas-evolution particles dispersed through the matrix, and engineered buffer pores. The oxygen-scavenging gas-evolution particles react with oxygen and generate a gaseous byproduct that diffuses through the interface to escape the EBC system. The engineered buffer pores buffer diffusion of gaseous byproduct to the interface by retaining at least a portion of the gaseous byproduct.

公开(公告)号：US20190119803A1

公开(公告)日：2019-04-25

申请号：US15789393

申请日：2017-10-20

Applicant: United Technologies Corporation

Inventor： Xia Tang ,  David C. Jarmon ,  James T. Beals ,  R. Wesley Jackson ,  Paul Sheedy

IPC: C23C4/10 ,  C23C4/12 ,  C23C4/134 ,  C23C4/129

Abstract: A coated article including an article having a surface; an oxidation resistant bond coat layer deposited on the surface, the oxidation resistant bond coat layer comprising a healing silica matrix and at least one oxygen scavenger forming a metal silicide network dispersed within the healing silica matrix; and a top coat layer disposed upon the oxidation resistant bond coat layer, whereby the oxidation resistant bond coat layer is operable to seal a crack in the top coat layer.

公开(公告)号：US20170335118A1

公开(公告)日：2017-11-23

申请号：US15158640

申请日：2016-05-19

Applicant: United Technologies Corporation

Inventor： Xia Tang ,  David C. Jarmon ,  Paul Sheedy ,  Virginia H. Faustino

IPC: C09D5/08 ,  B01J20/02 ,  B01J20/10 ,  C03C17/02

CPC classification number: C09D5/084 ,  B01J20/02 ,  B01J20/0218 ,  B01J20/10 ,  C03C17/02 ,  C23C24/08 ,  C23C30/00

Abstract: An article comprising a substrate and at least one coating layer disposed on the substrate. The coating layer includes a silicate glass matrix, an oxygen scavenger phase dispersed through the silicate glass matrix, and at least one metal in metallic form.