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ENVIRONMENTAL BARRIER COATING
A coating (116) according to an exemplary embodiment of this disclosure, among other possible things includes a bond coat (102) including gettering particles (108) and diffusive particles (110) dispersed in a matrix (106); a top coat (114) disposed over the bond coat (102), the top coat (114) includes metal silicate particles (120); and an intermediate layer (118) between the bond coat (102) and the top coat (114). The intermediate layer (118) includes hafnium silicate particles and matrix (106). A concentration of metal silicate in the intermediate layer (118) is less than a concentration of metal silicate in the top coat (114). An article (100) is also disclosed.
ENVIRONMENTAL BARRIER COATING
A coating (116) according to an exemplary embodiment of this disclosure, among other possible things includes a bond coat (102) including gettering particles (108) and diffusive particles (110) dispersed in a matrix (106); a top coat (114) disposed over the bond coat (102), the top coat (114) includes metal silicate particles (120); and an intermediate layer (118) between the bond coat (102) and the top coat (114). The intermediate layer (118) includes hafnium silicate particles and matrix (106). A concentration of metal silicate in the intermediate layer (118) is less than a concentration of metal silicate in the top coat (114). An article (100) is also disclosed.
ENVIRONMENTAL BARRIER COATING
UMWELTSPERRBESCHICHTUNG
REVÊTEMENT DE BARRIÈRE ENVIRONNEMENTALE
JACKSON III RICHARD WESLEY (author) / TANG XIA (author) / BEALS JAMES T (author)
2023-10-04
Patent
Electronic Resource
English
IPC:
C23C
Beschichten metallischer Werkstoffe
,
COATING METALLIC MATERIAL
/
C04B
Kalk
,
LIME
/
F01D
Strömungsmaschinen [Kraft- und Arbeitsmaschinen oder Kraftmaschinen], z.B. Dampfturbinen
,
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
/
F23R
Erzeugen von Verbrennungsprodukten hohen Druckes oder hoher Geschwindigkeit, z.B. Gasturbinenbrennkammern
,
GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS