Processible Boron Nitride Preceramic Polymers.
Abstract
Synthesis of B-triamino-N-tris(trimethylsily)borazine from the precursor B-trichloro-N-tris(trimethylsilyl)borazine is reported. Thermal condensations of the two borazines are discussed and mechanisms responsible for the results observed are postulated. A structural arrangement for the preceramic polymer obtained from B-triamino-N-tris(trimethylsilyl)-borazine is proposed. Utilization of the above polymer for fiber manufacture, application as fiber coatings and coatings in general are described together with the trnasformations into boron nitride in ammonia atmosphere. Keywords: preceramic polymers; boron nitrides; boron nitride fibers; B-triamino-N-tris(trimethylsilyl)boraine, ceramic fibers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 23, 1987
- Accession Number
- ADA178907
Entities
People
- D. H. Harris
- K. J. Paciorek
- R. H. Kratzer
- W. Krone-schmidt