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This company has produced highly pure 4YSZ (4 mol% yttria-stabilized zirconia), a thermal barrier coating material that offers exceptional properties for withstanding extreme temperature variations found in demanding operating environments. The product reportedly has a major application within turbine engines, especially in the aerospace industry. Due to its low thermal conductivity, only a very thin coating is necessary for impact, reportedly ensuring that the component weight of the rotating turbines is kept to a minimum.
With a melting point of ~ 2700°C and hardness of 14 GPa, the material can be used as a topcoat thermal barrier. It has been shown by CPT, an independent center for thermal spray technology, to demonstrate the same thermal diffusivity and corrosion resistance as conventional coatings, but at a much lower thickness and weight.
For additional information, visit www.innovnano-materials.com