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A platform for research: civil engineering, architecture and urbanism
Crack-resistant environmental barrier coatings
Methods suitable for reducing corner cracking of environmental barrier coating systems (20). The methods include forming at least one layer of a first portion (22) of the environmental barrier coating system (20) on at least a first region of the component, performing a first heat treatment, forming at least one layer of a second portion (28) of the environmental barrier coating system (20) on a second region of the component, and performing a second heat treatment to the component. Edges of the first portion (36) and edges of the second portion (38) form an angle of at most 60° with respect to a surface of the first region of the component. During the second heat treatment, the second portion (28) of the EBC system expands and the expansion of the second portion (28) of the EBC system (20) is at least partially constrained by the first portion (22) of the EBC system (20) to reduce tensile interfacial stresses in the EBC system.
Crack-resistant environmental barrier coatings
Methods suitable for reducing corner cracking of environmental barrier coating systems (20). The methods include forming at least one layer of a first portion (22) of the environmental barrier coating system (20) on at least a first region of the component, performing a first heat treatment, forming at least one layer of a second portion (28) of the environmental barrier coating system (20) on a second region of the component, and performing a second heat treatment to the component. Edges of the first portion (36) and edges of the second portion (38) form an angle of at most 60° with respect to a surface of the first region of the component. During the second heat treatment, the second portion (28) of the EBC system expands and the expansion of the second portion (28) of the EBC system (20) is at least partially constrained by the first portion (22) of the EBC system (20) to reduce tensile interfacial stresses in the EBC system.
Crack-resistant environmental barrier coatings
Bruchfeste Umgebungssperrschichten
Revêtements de barrière environnementale résistant aux fissures
ZHANG JAMES (author) / ROBERTS HERBERT CHIDSEY (author) / DAS RUPAK (author)
2017-03-29
Patent
Electronic Resource
English
CMAS-RESISTANT ENVIRONMENTAL BARRIER AND THERMAL BARRIER COATINGS
| European Patent Office | 2018
CMAS-RESISTANT ENVIRONMENTAL BARRIER AND THERMAL BARRIER COATINGS
| European Patent Office | 2023