ELECTROCHEMICAL STUDIES IN THE SYNTHESIS OF N-F COMPOUNDS

Abstract

The work reported was primarily devoted to seeking more reproducible passivation of aluminum electrodes. On the basis of previous work, aluminum was selected as a metal which came close to exhibiting the desired passive behavior in AHF similar to ferrous materials in aqueous systems. Data are reported concerning the reliability of the Pt base electrode, and describing the complex behavior of the A1/A1F3/AHF/supporting electrolyte system. These data lead to the conclusion that the Al behavior is more like that of the valve metals (e.g., Ta) than that of passivating materials in aqueous systems. It is further concluded that it will be necessary to find either a combination of operating procedure and acidic supporting electrolyte, or a better metal or alloy which will develop a more nearly self-limiting film growth, so that complex, time variable impedance effects are minimized.

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Document Details

Document Type
Technical Report
Publication Date
Nov 20, 1963
Accession Number
AD0426223

Entities

People

  • Robert R. Annand

Organizations

  • Tracor

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aluminum
  • Anodic Polarization
  • Aqueous Solutions
  • Cells
  • Contracts
  • Diffusion
  • Electrodes
  • Electrolytes
  • Electrolytic Cells
  • Films
  • Government Procurement
  • Materials
  • Measurement
  • Metals
  • Polarization
  • Resistance
  • Standards

Readers

  • Electrochemical Surface Science
  • Systems Analysis and Design
  • Thin Film Deposition Science.