METHODS FOR MANUFACTURING CAST COMPONENTS WITH INTEGRAL THERMAL BARRIER COATINGS
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United States of America Patent
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May 28, 2020
app pub date -
Nov 28, 2018
filing date -
Nov 28, 2018
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Abstract
A method for applying a thermal barrier coating (TBC) to a surface of a cast component includes providing a core, applying the TBC to the core to form a coated core, disposing the coated core within a casting mold, casting metal around at least a portion of the coated core to form a casting intermediary, and removing the core from the casting intermediary to form a cast component. The TBC includes hollow microspheres comprising metal, glass, and/or ceramic materials. The hollow microspheres can have an average diameter of about 10 μm to about 100 μm. The component can be an automotive component, such as an engine intake assembly, an engine exhaust manifold, an engine block, and/or an engine cylinder head. The surface of the cast component can be one or more surfaces which define an engine intake passage, an engine exhaust passage, and an engine combustion chamber.
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