公开(公告)号：US11623897B2

公开(公告)日：2023-04-11

申请号：US17517984

申请日：2021-11-03

Applicant: Raytheon Technologies Corporation

Inventor： Imelda P. Smyth ,  Xia Tang

IPC: C04B41/85 ,  F01D11/08 ,  F01D25/24 ,  C04B41/00 ,  C04B41/50

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：US20220411912A1

公开(公告)日：2022-12-29

申请号：US17899074

申请日：2022-08-30

Applicant: Raytheon Technologies Corporation

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

IPC: C23C4/10 ,  C04B41/52 ,  C04B41/89 ,  C23C24/08 ,  F01D5/28 ,  C23C28/04 ,  C23C4/11 ,  C04B41/00 ,  C23C4/129 ,  C23C4/134 ,  C23C4/12

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.