Multilayered Yttria-Stabilized Zirconia Coating for Improved Thermal Abrasion Resistance
Currently, there is a need for a thermal barrier coating (TBC) that will improve gas turbine efficiency by allowing for maximum inlet temperature and/or reducing the amount of cooling air required for airfoils. New ceramic top-coat and metallic bond coat chemistries for TBCs that are stronger and more temperature-resistant than current 8YSZ TBC systems will improve turbine efficiency. This will ultimately increase energy savings and reduce costs. As a solution to the current problem, yttria-stabilized-zirconia (YSZ) containing thermally insulating microballoons for controlled porosity, temperature resistance, and abrasion resistance will be used as a TBC. The goal is to develop a film that transitions from a top layer of strong, thermally insulating YSZ to a bottom layer of bond metal that will be adhered to the turbine blade as a protective, insulating layer. Commercial Applications and Other Benefits: Almost all electrical power on Earth is produced by a turbine of some type. Because this product improves turbine efficiency, it will be useful in aerospace applications, automotive applications, and power plants, all of which require the use of turbines.
Small Business Information at Submission:
24112 Rockwell Drive Euclid, OH 44117
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