Boron Nitride and Silicon Nitride Systems

Abstract

Information on phase equilibria and compound formation in the Li-B-N system all agree on the existence of a ternary compound Li3Bn2 with several pressure modifications. Heating powder compacts of Li3N + BN in a Mo-boat in a stream of nitrogen between 650 to 700 C was claimed as optimal conditions to obtain Li3BN2 the reaction being strongly exothermic. Melting of Li3BN2 was reported at 870. Based on earlier preliminary data by the p-T diagram of Li3BN2 was investigated over the pressure and temperature range from 1.0 to 6.5 GPa and 300 to 1900 C employing optical and x-ray powder diffraction analysis.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1991
Accession Number
ADA238080

Entities

People

  • Julius C. Schuster
  • Peter Rogl

Organizations

  • University of Vienna

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Ceramic Materials
  • Chemical Synthesis
  • Chemistry
  • Crystal Structure
  • Heat Energy
  • Heat Of Formation
  • Isotherms
  • Material Degradation Processes
  • Materials
  • Materials Processing
  • Materials Science
  • Phase Diagrams
  • Phase Transformations
  • Sheet Metal
  • Solid Solutions
  • Spectra
  • Thermodynamics

Readers

  • International Journalism and Media Studies.
  • Powder metallurgy of Titanium alloys.
  • Theoretical Analysis.