Thermal barrier coating system with intermetallic overlay bond coat

Patent · Tue Aug 24 00:00:00 EDT 1993

OSTI ID:6303577

Duderstadt, E C; Nagaraj, B A

A superalloy article is described having a thermal barrier coating system thereon, comprising: a substrate made of a material selected from the group consisting of a nickel-based superalloy and a cobalt-based superalloy; and a thermal barrier coating system on the substrate, the thermal barrier coating system including an intermetallic bond coat overlying the substrate, the bond coat being selected from the group consisting of a nickel aluminide and a platinum aluminide intermetallic compound, a thermally grown aluminum oxide layer overlying the intermetallic bond coat, and a ceramic topcoat overlying the aluminum oxide layer.

• Assignee: General Electric Co., Cincinnati, OH (United States)
• Patent Number(s): US 5238752; A
• Application Number: PPN: US 7-520017
• OSTI ID: 6303577
• Resource Relation: Patent File Date: 7 May 1990
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
THERMAL CONDUCTIVITY
ALUMINIUM OXIDES
COMPOSITE MATERIALS
HEAT RESISTING ALLOYS
PROTECTIVE COATINGS
NICKEL ALLOYS
CERAMICS
COBALT BASE ALLOYS
INTERMETALLIC COMPOUNDS
LAYERS
NICKEL BASE ALLOYS
SUBSTRATES
THERMAL INSULATION
ALLOYS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
COATINGS
COBALT ALLOYS
HEAT RESISTANT MATERIALS
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
THERMODYNAMIC PROPERTIES
360101* - Metals & Alloys- Preparation & Fabrication
360606 - Other Materials- Physical Properties- (1992-)