公开(公告)号：US20210246080A1

公开(公告)日：2021-08-12

申请号：US16785012

申请日：2020-02-07

Applicant: UNITED TECHNOLOGIES CORPORATION

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

IPC: C04B41/00 ,  C04B41/50 ,  C04B41/45 ,  C04B35/78 ,  F01D5/28

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 a network of gettering particles in the matrix phase. The gettering particles have an average maximum dimension between about 30 and 70 microns. The gettering particles have maximum dimensions that range from about 1 to 100 microns, and a dispersion of barium-magnesium alumino-silicate 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：US20210188720A1

公开(公告)日：2021-06-24

申请号：US16722556

申请日：2019-12-20

Applicant: UNITED TECHNOLOGIES CORPORATION

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

IPC: C04B41/00 ,  C04B35/80 ,  C04B35/56 ,  C04B35/565 ,  C04B41/52 ,  C04B41/50 ,  C04B41/87 ,  F01D5/28

Abstract: An article includes a ceramic-based substrate and a barrier layer on the ceramic-based substrate. The barrier layer includes a matrix of SiO2 and a dispersion of silicon oxycarbide particles in the matrix. The silicon oxycarbide particles have Si, O, and C in a covalently bonded network, and a dispersion of barium-magnesium alumino-silicate particles in the matrix. The barium-magnesium alumino-silicate particles have an average maximum dimension that is between about 10-40% of an average maximum dimension of the silicon oxycarbide particles. A composite material and a method of applying a barrier layer to a substrate are also disclosed.

公开(公告)号：US10822281B2

公开(公告)日：2020-11-03

申请号：US16185203

申请日：2018-11-09

Applicant: United Technologies Corporation

Inventor： Ying She ,  James T. Beals ,  Xia Tang ,  Richard Wesley Jackson

IPC: C04B35/628 ,  C23C16/32 ,  C04B35/80 ,  C04B35/626 ,  C04B35/638

Abstract: A process for densification of a ceramic matrix composite comprises forming a reinforcing ceramic continuous fiber stack having a central zone bounded by an outer zone adjacent; locating first particles within the central zone; coating the first particles and the ceramic fibers with silicon carbide through chemical vapor infiltration; locating second particles within the outer zone; coating the second particles and the ceramic fibers with silicon carbide through chemical vapor infiltration; forming the stack into a predetermined three dimensional shape; and densifying the stack.

公开(公告)号：US20200157963A1

公开(公告)日：2020-05-21

申请号：US16542835

申请日：2019-08-16

Applicant: United Technologies Corporation

Inventor： Imelda P. Smyth ,  Xia Tang

IPC: F01D11/08

Abstract: A blade outer air seal has at least one internal surface and a layer atop the at least one internal surface. The layer has: a matrix comprising at least one of hafnium silicate (HfSiO4) and zirconium silicate (ZrSiO4), ytterbium disilicate (Yb2Si2O7); and barium magnesium alumino silicate (BMAS) or other alkaline earth aluminosilicate.

公开(公告)号：US20200056488A1

公开(公告)日：2020-02-20

申请号：US15998730

申请日：2018-08-16

Applicant: United Technologies Corporation

Inventor： Richard Wesley Jackson ,  James T. Beals ,  Tania Bhatia Kashyap ,  Wayde R. Schmidt ,  Paul Sheedy ,  Xia Tang

IPC: F01D5/28 ,  C04B35/14 ,  C04B35/622 ,  C04B35/63

Abstract: An environmental barrier coating, comprising a substrate containing silicon; an environmental barrier layer applied to the substrate; the environmental barrier layer comprising an oxide matrix; an oxidant getter phase interspersed throughout the oxide matrix; and a self-healing phase interspersed throughout the oxide matrix.

公开(公告)号：US20200040746A1

公开(公告)日：2020-02-06

申请号：US16054015

申请日：2018-08-03

Applicant: United Technologies Corporation

Inventor： Richard Wesley Jackson ,  John E. Holowczak ,  Xia Tang ,  James T. Beals

IPC: F01D5/28 ,  C04B35/80 ,  C04B35/622 ,  C04B35/628

Abstract: An environmental barrier coating, comprising an environmental barrier coating applied to a substrate containing silicon; the environmental barrier coating comprising an oxide matrix surrounding a fiber-reinforcement structure and a self-healing phase interspersed throughout the oxide matrix.

公开(公告)号：US20200010375A1

公开(公告)日：2020-01-09

申请号：US16550839

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 ,  C04B35/14 ,  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：US20180215670A1

公开(公告)日：2018-08-02

申请号：US15939352

申请日：2018-03-29

Applicant: United Technologies Corporation

Inventor： Shahram Amini ,  Xia Tang ,  Wayde R. Schmidt, SR. ,  Tania Bhatia Kashyap

IPC: C04B35/80 ,  C04B35/571 ,  C04B35/64 ,  C04B41/52

CPC classification number: C04B35/806 ,  C04B35/571 ,  C04B35/64 ,  C04B41/52 ,  C04B2235/32 ,  C04B2235/3804 ,  C04B2235/3817 ,  C04B2235/3826 ,  C04B2235/3852 ,  C04B2235/3891 ,  C04B2235/422 ,  C04B2235/483 ,  C04B2235/5208 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/616

Abstract: A method of fabricating a ceramic article includes providing a porous body that includes a plurality of fiber bundles that has an intra-bundle porosity and an inter-bundle porosity, infiltrating the intra-bundle porosity and the inter-bundle porosity with a mixture of particles in a liquid carrier, the particles having an average size selected with respect to at least the intra-bundle porosity, removing the liquid carrier from the porous body to deposit the particles in the intra-bundle porosity and in the inter-bundle porosity, infiltrating a preceramic polymer into a remaining intra-bundle porosity and a remaining inter-bundle porosity, and thermally converting the preceramic polymer to a ceramic material.

公开(公告)号：US11692274B2

公开(公告)日：2023-07-04

申请号：US16704186

申请日：2019-12-05

Applicant: United Technologies Corporation

Inventor： Kenneth David Smith ,  Xia Tang ,  Paul Sheedy

IPC: F01D5/28 ,  C23C4/10 ,  C23C28/04 ,  C23C24/04 ,  C23C24/08 ,  C23C4/11 ,  C23C24/00 ,  C23C24/02 ,  C23C4/067 ,  F01D25/00 ,  C23C30/00 ,  C23C4/123 ,  C23C4/134 ,  C23C28/02 ,  C23C28/00 ,  C23C4/04 ,  C23C4/129 ,  C23C26/00 ,  C23C4/137 ,  B05D5/00 ,  B05D3/02 ,  B05D1/02 ,  B05D1/18

CPC classification number: C23C28/042 ,  B05D1/02 ,  B05D1/18 ,  B05D3/0254 ,  B05D5/00 ,  C23C4/04 ,  C23C4/067 ,  C23C4/10 ,  C23C4/11 ,  C23C4/123 ,  C23C4/129 ,  C23C4/134 ,  C23C4/137 ,  C23C24/00 ,  C23C24/02 ,  C23C24/04 ,  C23C24/08 ,  C23C24/085 ,  C23C26/00 ,  C23C28/02 ,  C23C28/027 ,  C23C28/04 ,  C23C28/34 ,  C23C28/3455 ,  C23C30/00 ,  C23C30/005 ,  F01D5/28 ,  F01D5/288 ,  F01D25/005 ,  B05D2202/00 ,  B05D2202/10 ,  B05D2202/30 ,  B05D2202/40 ,  B05D2203/30 ,  F05D2220/32 ,  Y10T428/12014 ,  Y10T428/12028 ,  Y10T428/12063 ,  Y10T428/12097 ,  Y10T428/12104 ,  Y10T428/12111 ,  Y10T428/12146 ,  Y10T428/12181 ,  Y10T428/12576 ,  Y10T428/12583 ,  Y10T428/12597 ,  Y10T428/12604 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/12674 ,  Y10T428/12944 ,  Y10T428/2495 ,  Y10T428/25 ,  Y10T428/256 ,  Y10T428/259

Abstract: A gas turbine engine article includes a substrate and an environmental barrier coating disposed on the substrate. The environmental barrier coating includes oxygen-scavenging particles. Each oxygen-scavenging particle includes a silicon-containing core particle encased in an oxygen barrier shell.

公开(公告)号：US11542209B2

公开(公告)日：2023-01-03

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: B32B9/04 ,  C04B41/50 ,  C04B41/45 ,  C04B41/52 ,  C04B41/86 ,  C04B41/89 ,  F01D5/28

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.