ALEXANDRIA, Va., May 12 -- United States Patent no. 12,623,968, issued on May 12.
"Functionally graded firing setters and process for manufacturing these setters" was invented by Lucian Garrett Ferguson (Mill Creek, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A functionally graded firing setter that includes a substrate layer of cubic oxide; a top layer of unstabilized zirconium dioxide/hafnium dioxide; and a continuous transitional gradient layer disposed between the substrate layer and the top layer. The continuous transitional gradient layer includes cubic oxide stabilized zirconium dioxide/hafnium dioxide. The cubic oxide can be calcium oxide (CaO) or magnesium oxide (MgO)."
The patent was file...