A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SEAL SYSTEM WITH METALLIC COMPONENT AND CERAMIC COMPONENT HAVING SILICON LAYER AND BARRIER LAYER
A seal system 60 comprising a ceramic component 62 having a surface region 70 defining a first surface roughness, a metallic component 64 situated adjacent the surface region, and a coating system 71 disposed on the surface region 70. The coating system 71 includes a silicon-containing layer 66 on the surface region and a barrier layer 68 on the silicon-containing layer. The silicon-containing layer 66 has a surface in contact with the barrier layer 68. The barrier layer 68 has a surface in contact with the metallic component 64. The surface of the barrier layer 68 has a second surface roughness that is less than the first surface roughness. The barrier layer 68 limits interaction between silicon of the silicon-containing layer 66 and elements of the metallic component 64. The barrier layer 68 has a coefficient of thermal expansion that is within about 60% of a coefficient of thermal expansion of the ceramic component 62. A gas turbine engine and a method are also disclosed.
SEAL SYSTEM WITH METALLIC COMPONENT AND CERAMIC COMPONENT HAVING SILICON LAYER AND BARRIER LAYER
A seal system 60 comprising a ceramic component 62 having a surface region 70 defining a first surface roughness, a metallic component 64 situated adjacent the surface region, and a coating system 71 disposed on the surface region 70. The coating system 71 includes a silicon-containing layer 66 on the surface region and a barrier layer 68 on the silicon-containing layer. The silicon-containing layer 66 has a surface in contact with the barrier layer 68. The barrier layer 68 has a surface in contact with the metallic component 64. The surface of the barrier layer 68 has a second surface roughness that is less than the first surface roughness. The barrier layer 68 limits interaction between silicon of the silicon-containing layer 66 and elements of the metallic component 64. The barrier layer 68 has a coefficient of thermal expansion that is within about 60% of a coefficient of thermal expansion of the ceramic component 62. A gas turbine engine and a method are also disclosed.
SEAL SYSTEM WITH METALLIC COMPONENT AND CERAMIC COMPONENT HAVING SILICON LAYER AND BARRIER LAYER
DICHTSYSTEM MIT METALLISCHEM BAUELEMENT UND KERAMISCHEM BAUELEMENT MIT SILIZIUMSCHICHT UND BARRIERESCHICHT
SYSTÈME D'ÉTANCHÉITÉ AVEC COMPOSANT MÉTALLIQUE ET COMPOSANT CÉRAMIQUE AYANT UNE COUCHE DE SILICIUM ET UNE COUCHE BARRIÈRE
WHITE III ROBERT A (author) / HAZEL BRIAN T (author) / DING ZHONGFEN (author)
2024-07-24
Patent
Electronic Resource
English
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