ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,623, issued on Feb. 10, was assigned to MATERION Corp. (Mayfield Heights, Ohio).

"Crucibles and compositions and processes for making same" was invented by Zan Aslett (Mayfield Heights, Ohio), Fritz Grensing (Mayfield Heights, Ohio) and Evan K. Morey (Mayfield Heights, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A crucible having a heat treated body. The heat treated body comprises a composition including an oxide material, from 5 wt % to 50 wt % a nitride material, and optionally a sintering aid. A weight ratio of the nitride material to the oxide material ranges from 0.02:1 to 2.0:1. The heat treated body has an oxide material lattice stru...