US 11,913,120 B2
Thermal barrier coatings with CMAS resistance
Eric Jordan, Storrs, CT (US); Maurice Gell, Somerset, NJ (US); Rishi Kumar, Ashford, CT (US); and Chen Jiang, Willimantic, CT (US)
Filed by The University of Connecticut, Farmington, CT (US)
Filed on Aug. 1, 2022, as Appl. No. 17/878,868.
Application 17/878,868 is a continuation of application No. 15/808,817, filed on Nov. 9, 2017, granted, now 11,401,611.
Prior Publication US 2022/0372630 A1, Nov. 24, 2022
Int. Cl. C23C 28/00 (2006.01); C23C 28/04 (2006.01); F01D 5/28 (2006.01)
CPC C23C 28/3455 (2013.01) [C23C 28/042 (2013.01); C23C 28/044 (2013.01); F01D 5/288 (2013.01); F05D 2230/90 (2013.01); F05D 2260/95 (2013.01); F05D 2300/21 (2013.01); F05D 2300/6111 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A coating on a substrate, comprising:
yttrium aluminum garnet (YAG); and
yttrium aluminum monoclinic (YAM); and
a layer of a mixed phase of YAM and yttrium aluminum perovskite (YAP), wherein the layer of the mixed phase of YAM and YAP transitions from YAM at a top of the layer of the mixed phase of YAM and YAP to a ratio of YAM and YAP at a bottom of the layer of the mixed phase of YAM and YAP.
 
13. A coating on a substrate, comprising:
yttrium aluminum garnet (YAG);
yttrium aluminum monoclinic (YAM);
a layer of a mixed phase of YAG and YAM, and wherein the coating is a thermal barrier coating; and
a layer of a mixed phase of YAM and yttria stabilized zirconia (YSZ), wherein the layer of the mixed phase of YAM and YSZ is between the layer of the mixed phase of YAG and YAM and the substrate.
 
14. A coating on a substrate, comprising:
yttrium aluminum garnet (YAG);
yttrium aluminum monoclinic (YAM);
a layer of a mixed phase of YAG and YAM, and wherein the coating is a thermal barrier coating; and
a layer of YAP, wherein the layer of YAP is between the layer of the mixed phase of YAG and YAM and the substrate.