Riley O Schaeffer

US Patent:

52042952, Apr 20, 1993

Filed:

Jun 27, 1991

Appl. No.:

7/725933

Inventors:

Robert T. Paine - Albuquerque NM
Chaitanya K. Narula - Ann Arbor MI
Riley O. Schaeffer - Boulder CO
David A. Lindquist - Albuquerque NM
Theodore T. Borek - Albuquerque NM

Assignee:

University of New Mexico - Albuquerque NM

International Classification:

C04B 3556

US Classification:

501 96

Abstract:

The disclosure is directed to compositions and methods for forming boron nitride coatings, using polymers derived from tri-substituted borazine and chloroborazine compounds. The polymeric compounds are mixed with ammonia, pyrolized at high temperatures to obtain a high temperature melt, and further converted to boron nitride coatings on various substrates. The polymeric compounds can be stored prior to pyrolysis.