Honeywell International Inc.

Wil Baker

Vladimir K Tolpygo

David Jorgensen

Thermal barrier coatings consist of a tantala-zirconia mixture that is stabilized with two or more stabilizers. An exemplary thermal barrier coating consists of, by mole percent: about 8% to about 30% YO; about 8% to about 30% YbOor GdOor combination thereof; about 8% to about 30% TaO; about 0% to about 10% HfO; and a balance of ZrO.

Thermal barrier coatings for turbine engine components

Thermal barrier coatings, which may be used in gas turbine engines, comprise or consist of a tantala-niobia-zirconia mixture that is stabilized with two or more stabilizers. An exemplary thermal barrier coating comprises or consists of, by mole percent: about 2% to about 30% YO; about 8% to about 30% YbOor GdOor combination thereof; about 6% to about 30% TaO; about 0.1% to about 10% NbO; about 0% to about 10% HfO; and a balance of ZrO.

Quinary, low-conductivity thermal barrier coatings for turbine engine components

A turbine engine, an engine structure, and a method of forming an engine structure are provided herein. In an embodiment, an engine structure includes a metal substrate, a thermal barrier coating layer, and a metal silicate protective layer. The thermal barrier coating layer overlies the metal substrate, and the thermal barrier coating layer has columnar grains with gaps defined between the columnar grains. The metal silicate protective layer is formed over the thermal barrier coating layer, and the metal silicate protective layer covers the columnar grains and the gaps between the columnar grains.

Turbine engine, engine structure, and method of forming an engine structure with thermal barrier coating protection

A ceramic composition of matter includes a solvent material and a solute material. The solvent material comprises zirconia or hafnia, or a mixture thereof, which is stabilized with a stabilizing oxide. The solute material comprises a metal oxide of the formula, XO, where X is a metallic element, O is oxygen, and 'a' and 'b' are stoichiometric coefficients. The difference in density between the solvent material and the solute material is less than about 30%.

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Phoenix, AZ, United States of America

Wil Baker