US 11,655,192 B2
Barrier coatings
Li Li, Carmel, IN (US); Jun Shi, Carmel, IN (US); Scott Nelson, Carmel, IN (US); and Taylor K. Blair, Indianapolis, IN (US)
Assigned to Rolls-Royce Corporation, Indianapolis, IN (US)
Filed by Rolls-Royce Corporation, Indianapolis, IN (US)
Filed on Jul. 25, 2019, as Appl. No. 16/522,524.
Prior Publication US 2021/0024424 A1, Jan. 28, 2021
Int. Cl. C04B 35/622 (2006.01); B05D 1/38 (2006.01); B05D 3/12 (2006.01); C04B 35/16 (2006.01)
CPC C04B 35/62222 (2013.01) [B05D 1/38 (2013.01); B05D 3/12 (2013.01); C04B 35/16 (2013.01); C04B 2235/3427 (2013.01); C04B 2235/5276 (2013.01); C04B 2235/5296 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An article comprising:
a substrate; and
a barrier coating on the substrate extending from an inner interface facing the substrate to an outer surface opposite the inner interface, wherein the barrier coating comprises:
a bulk matrix; and
a plurality of discrete plugs inset only within the bulk matrix, wherein each of the plurality of discrete plugs includes an outer surface located at the outer surface of the barrier coating, wherein each plug of the plurality of discrete plugs has a greatest length, measured substantially normal to the outer surface of the barrier coating, that is less than a thickness of the barrier coating, and wherein at least a portion of the plurality of discrete plugs is distributed in a pattern having a substantially uniform spacing and depth.