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Methods of forming boron nitride

United States Patent

March 3, 2015
View the Complete Patent at the US Patent & Trademark Office
Improved Reliability of Ballistic Weapons and Combustion Engines
A method of forming a boron nitride. The method comprises contacting a metal article with a monomeric boron-nitrogen compound and converting the monomeric boron-nitrogen compound to a boron nitride. The boron nitride is formed on the same or a different metal article. The monomeric boron-nitrogen compound is borazine, cycloborazane, trimethylcycloborazane, polyborazylene, B-vinylborazine, poly(B-vinylborazine), or combinations thereof. The monomeric boron-nitrogen compound is polymerized to form the boron nitride by exposure to a temperature greater than approximately C. The boron nitride is amorphous boron nitride, hexagonal boron nitride, rhombohedral boron nitride, turbostratic boron nitride, wurzite boron nitride, combinations thereof, or boron nitride and carbon. A method of conditioning a ballistic weapon and a metal article coated with the monomeric boron-nitrogen compound are also disclosed.
Trowbridge; Tammy L. (Idaho Falls, ID), Wertsching; Alan K. (Idaho Falls, ID), Pinhero; Patrick J. (Columbia, MO), Crandall; David L. (Idaho Falls, ID)
U.S. Department of Energy (Washington, DC)
12/ 060,711
April 1, 2008
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with government support under Contract No. DE-AC07-05ID14517 awarded by the United States Department of Energy. The government has certain rights in the invention.