Thermal barrier coating system. [NiCrAlY and ZrO/sub 2/--Y/sub 2/O/sub 3/ or ZrO/sub 2/--MgO]

Patent · Tue Oct 25 04:00:00 EDT 1977

OSTI ID:6602465

Stecura, S; Leibert, C H

A coating system which contains a bond coating and a thermal barrier coating is applied to metal surfaces such as turbine blades and provides both low thermal conductivity and improved adherence when exposed to high-temperature gases or liquids. The bond coating contains NiCrAlY and the thermal barrier coating contains a reflective oxide. The reflective oxides ZrO/sub 2/--Y/sub 2/O/sub 3/ and ZrO/sub 2/--MgO have demonstrated significant utility in high-temperature turbine applications.

• Assignee: EDB-79-012896; ERA-04-011097
• Patent Number(s): US 4055705
• OSTI ID: 6602465
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ALKALINE EARTH METAL COMPOUNDS
ALLOY SYSTEMS
ALLOYS
ALUMINIUM ALLOYS
CHALCOGENIDES
CHROMIUM ALLOYS
COATINGS
DEPOSITION
HIGH TEMPERATURE
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
NICKEL ALLOYS
OXIDES
OXYGEN COMPOUNDS
QUATERNARY ALLOY SYSTEMS
THERMAL INSULATION
TRANSITION ELEMENT COMPOUNDS
TURBINE BLADES
YTTRIUM ALLOYS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES