Initial stages of cathodic breakdown of thin anodic aluminium oxide films

Achim Walter Hassel, M. M. Lohrengel

Research output: Contribution to journalArticlepeer-review

Abstract

The cathodic breakdown of thin anodic oxide films on aluminium (3-15 nm) was monitored by current transients of potentiostatic pulse experiments, electrochemical impedance spectroscopy and simultaneously recorded optical reflectivity. The time to breakdown tB taken from current transients as the point of inflection, varies in a very wide range from 10^-3 to 10^6 s and depends clearly on the film thickness and on the polarization potential. A mechanism of the cathodic breakdown according to the experimental results is discussed.
Original languageEnglish
Pages (from-to)433-437
Number of pages5
JournalElectrochimica Acta
Volume40
DOIs
Publication statusPublished - 1995

Fields of science

  • 104005 Electrochemistry
  • 104006 Solid state chemistry
  • 104014 Surface chemistry
  • 104017 Physical chemistry
  • 105113 Crystallography
  • 105116 Mineralogy
  • 503013 Subject didactics of natural sciences
  • 204 Chemical Process Engineering
  • 204001 Inorganic chemical technology
  • 205016 Materials testing
  • 210006 Nanotechnology
  • 211104 Metallurgy

JKU Focus areas

  • Engineering and Natural Sciences (in general)

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