A QUASICHEMICAL APPROACH TO ADSORPTION AND THE RECOMBINATION OF SURFACE BONDS

Abstract

A quasi-chemical model is presented and applied to the adsorption of tungsten on specific crystallographic planes of tungsten. The use of this method requires the assumption of a certain degree of recombination of electron orbitals from surface and subsurface atoms. A set of rules for recombination of bonding is presented and the results calculated using this method are in good agreement both with experimentally determined values of desorption enthalpies and with the tabulated enthalpy of sublimation for tungsten.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1968
Accession Number
AD0678758

Entities

People

  • Marc H. Richman
  • Robert D. French

Organizations

  • Brown University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Adsorption
  • Agreements
  • Bulk Materials
  • Crystal Structure
  • Desorption
  • Electron Diffraction
  • Electrons
  • Energy
  • Enthalpy
  • Equations
  • Field Emission
  • Field Ion Microscopy
  • Heat Of Sublimation
  • Materials
  • Metals
  • Sublimation
  • Tungsten

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Materials Science and Engineering.
  • Quantum Chemistry

Technology Areas

  • Microelectronics
  • Space
  • Space - Hall-Effect Thruster