Accession Number:

ADA190703

Title:

The Corrosion Resistance of an Aluminum Alloy Coated with Polysilazane Derived Ceramics.

Descriptive Note:

Technical rept. no. 11, May 86-May 87,

Corporate Author:

SRI INTERNATIONAL MENLO PARK CA

Report Date:

1987-12-20

Pagination or Media Count:

15.0

Abstract:

Aluminum plates were dip coated in a poly N methylsilazane, solution. Heating process at 400 C transformed the inorganic polymer into coatings that exhibited good corrosion resistance characteristics in a marine environment relative to the bare metal as measured and interpreted by electrochemical methods. The corrosion rate was inhibited by almost one order of magnitude. No microscopic degradation of the coatings was observed after 21 days of measurement, which confirms the stability of the coatings as determined by the electrochemical technique. Keywords Polysilazanes Aluminum alloys Ceramic precursors Inorganic polymers Coating Corrosion resistance Marine environment.

Subject Categories:

  • Properties of Metals and Alloys
  • Coatings, Colorants and Finishes

Distribution Statement:

APPROVED FOR PUBLIC RELEASE