The Kinetics and Mechanism of Oxygen Uptake on a Polycrystalline Iron Surface

Abstract

The initial uptake of oxygen has been studied on a clean, polycrystalline iron surface over the temperature range between 360 and 575 K, using a combination of Auger electron spectroscopy and mass spectrometry. An initial chemisorption period is followed in turn by a temperature dependent linear oxidation regime and a final period of decreasing oxidation rate. Chemisorption kinetics can be explained by an intrinsic molecular precursor mechanism. The linear oxidation period involves uptake into the near-surface bulk by a non-activated place exchange mechanism.

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Document Details

Document Type
Technical Report
Publication Date
Feb 28, 1988
Accession Number
ADA196489

Entities

People

  • John B. Hudson
  • Mehran Arbab

Organizations

  • Rensselaer Polytechnic Institute

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Auger Electron Spectroscopy
  • Auger Electrons
  • Chemistry
  • Desorption
  • Dissociation
  • Electron Spectroscopy
  • Electrons
  • Energy
  • Engineering
  • Heat Of Activation
  • Mass Spectrometry
  • Materials
  • Materials Engineering
  • Scattering
  • Spectra
  • Spectrometry
  • Spectroscopy

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies

Technology Areas

  • Microelectronics