ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,979, issued on July 14, was assigned to Honeywell International Inc. (Charlotte, N.C.).
"Barrier coating" was invented by Hillary Mitchell Warden (South Bend, Ind.), Elizabeth Arndt (South Bend, Ind.) and Laurie A. Booker (South Bend, Ind.).
According to the abstract* released by the U.S. Patent & Trademark Office: "In examples, a method for forming a high temperature coating includes applying a barrier coat formulation on a substrate. The barrier coat formulation includes mono-aluminum phosphate; boron carbide; and molybdenum or a molybdenum compound. The method further includes heat treating the barrier coat formulation to form an oxidation-resistant coating layer, wherein a me...