THERMAL BARRIER COATING AND ARTICLE COMPRISING SAME
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United States of America Patent
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Nov 18, 2021
app pub date -
Oct 17, 2018
filing date -
Apr 23, 2012
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Abstract
A method for manufacturing a coating includes dissolving at least one salt in a mixture of water and ethanol to form a precursor solution, adding an additive to the precursor solution to form a fuel solution, and injecting the fuel solution into a plasma flame. The additive includes at least one of urea or ammonium acetate. The additive functions as a fuel to increase a temperature of the plasma flame. The method further includes manufacturing the coating on a substrate. The coating includes a garnet structure including a predetermined amount of yttrium-aluminum, one or more first cracks extending completely through a thickness of the coating, and a porosity greater than ten volume percent.
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