Accession Number : ADA194958

Title :   Boron-Nitride and Its Precursors.

Descriptive Note : Technical rept.,

Corporate Author : ULTRASYSTEMS DEFENSE AND SPACE SYSTEMS INC IRVINE CA

Personal Author(s) : Paciorek, K J ; Krone-Schmidt, W ; Harris, D H ; Kratzer, R H

PDF Url : ADA194958

Report Date : 24 Aug 1987

Pagination or Media Count : 17

Abstract : Formation of preceramic polymers by stepwise pyrolysis of borazines was found to be strongly dependent upon the ring substituents. Boron nitride fibers were obtained via preceramic polymers produced from B-triaminio-N-tris(trimethylsilyl)borazine. Studies were carried out to determine the suitability of linear boron-nitrogen composition as preceramic polymer precursors. The mechanisms responsible for the observed results are delineated.

Descriptors :   *BORON NITRIDES, FIBERS, POLYMERS, PRECURSORS, CERAMIC MATERIALS, SYNTHESIS(CHEMISTRY), PYROLYSIS, REFRACTORY MATERIALS

Subject Categories : Inorganic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE