STRUCTURE OF VITREOUS AND LIQUID BORON TRIOXIDE AND SOME SIMPLE BORATES

Abstract

Research was conducted to obtain structural information on the vitreous and liquid B2O3 and binary borates. By the use of high-pressure techniques, simple crystals of two forms of B2O3 were prepared for x-ray diffraction studies. The tentative phase diagram for liquid and crystalline B2O3 was constructed up to 1100 C and 90,000 atmospheres. The effects of water on the viscosity, electric conductance, and density of liquid B2O3 were examined indicating that some of the current hypotheses concerning the structure of liquid B2O3 can be rejected. Preliminary results on the IR absorption of solid and liquid B2O3 were obtained. Other work in progress includes nuclear magnetic resonance absorption, viscosity measurements of binary borates at temperatures below the liquidus, and single-crystal diffraction on alpha-and betaB2O3.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1961
Accession Number
AD0269226

Entities

People

  • J. D. Mackenzie

Organizations

  • General Electric

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Air Force
  • Barometric Pressure
  • Chemical Synthesis
  • Chemistry
  • Crystals
  • High Pressure
  • High Temperature
  • Magnetic Resonance
  • Measurement
  • Melting Point
  • Nuclear Magnetic Resonance
  • Phase Diagrams
  • Physical Properties
  • Resonance Absorption
  • Spectra
  • Viscous Flow
  • X-Ray Diffraction

Readers

  • Combustion science or combustion engineering.
  • Materials Science and Engineering.