Stock material or miscellaneous articles – All metal or with adjacent metals – Microscopic interfacial wave or roughness
Patent
1993-03-03
1995-05-30
Lewis, Michael
Stock material or miscellaneous articles
All metal or with adjacent metals
Microscopic interfacial wave or roughness
428632, 428633, 428687, 428161, 428164, 428172, B32B 330
Patent
active
054199719
ABSTRACT:
An article having a substrate is protected by a thermal barrier coating system. An interfacial layer contacts the upper surface of the substrate. The interfacial layer may comprise a bond coat only, or a bond coat and an overlay coat. The interfacial layer has on its upper surface a preselected, controllable pattern of three-dimensional features, such as grooves in a parallel array or in two angularly offset arrays. The features are formed by an ablation process using an ultraviolet laser such as an excimer laser. A ceramic thermal barrier coating is deposited over the pattern of features on the upper surface of the interfacial layer.
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Bruce Robert W.
Gupta Bhupendra K.
Johnson Curtis A.
Mannava Seetha R.
Nagaraj Bangalore A.
General Electric Company
Lewis Michael
Narciso David L.
Nguyen N. M.
Squillaro Jerome C.
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