Congruent Vaporization in the V-Si System as Studied by High Temperature Knudsen Cell Mass Spectrometry.

Abstract

The vaporization behavior of vanadium silicides has been investigated by Knudsen cell mass spectrometry in the temperature range 1800-2000K. It was demonstrated that at about 1900-2000K the congruently vaporizing composition is within the V3Si single phase region. Thermodynamic activities relative to the solid elements were obtained by direct comparison. Free energies and enthalpies of phase formation for V3Si(s) and V5Si3(s) were calculated from the experimental data and were found to be in good agreement with data obtained elsewhere.

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Document Details

Document Type
Technical Report
Publication Date
Nov 26, 1985
Accession Number
ADA162285

Entities

People

  • Clifford E. Myers
  • Robert J. Kematick

Organizations

  • Binghamton University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Chemistry
  • Elements
  • Energy
  • Experimental Data
  • Free Energy
  • High Temperature
  • Mass Spectrometers
  • Mass Spectrometry
  • Metals
  • New York
  • Partial Pressure
  • Phase
  • Spectrometry
  • Thermodynamics
  • Transition Temperature
  • Vaporization

Fields of Study

  • Chemistry

Readers

  • Combustion science or combustion engineering.
  • Materials Science and Engineering.
  • Nanoscale Plasmonic Nanotechnology