US 12,030,822 B2
Environmental barrier coating
Olivier H. Sudre, Glastonbury, CT (US); Richard Wesley Jackson, Mystic, CT (US); and Xuan Liu, Glastonbury, CT (US)
Assigned to RTX Corporation, Farmington, CT (US)
Filed by Raytheon Technologies Corporation, Farmington, CT (US)
Filed on Apr. 27, 2020, as Appl. No. 16/859,827.
Prior Publication US 2021/0331984 A1, Oct. 28, 2021
Int. Cl. C04B 41/50 (2006.01); C04B 41/00 (2006.01); C04B 41/45 (2006.01); C04B 41/52 (2006.01); C04B 41/87 (2006.01); C04B 41/89 (2006.01); F01D 5/28 (2006.01); F01D 25/00 (2006.01)
CPC C04B 41/5057 (2013.01) [C04B 41/009 (2013.01); C04B 41/4539 (2013.01); C04B 41/4582 (2013.01); C04B 41/5024 (2013.01); C04B 41/522 (2013.01); C04B 41/87 (2013.01); C04B 41/89 (2013.01); F01D 5/284 (2013.01); F01D 5/288 (2013.01); F01D 25/005 (2013.01); F05D 2240/11 (2013.01); F05D 2240/35 (2013.01); F05D 2240/55 (2013.01); F05D 2300/222 (2013.01); F05D 2300/2261 (2013.01); Y10T 428/31504 (2015.04)] 20 Claims
OG exemplary drawing
 
1. An article comprising:
a ceramic-based substrate; and
a barrier layer on the ceramic-based substrate, the barrier layer including a matrix, diffusive particles, and gettering particles, wherein the gettering particles include non-gas-evolving particles, wherein the non-gas-evolving particles have a protective coating, and wherein the protective coating is operable to limit reactivity of the non-gas-evolving particles.