Low Temperature Curing of Hydrogen Silsesquioxane Surface Coatings for Corrosion Protection of Aluminum

Felix Lampert, Annemette Hindhede Jensen, Per Møller

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Hydrogen Silsesquioxane (HSQ) has shown to be a promising precursor for corrosion protective glass coatings for metallic substrates due to the excellent barrier properties of the films, especially in the application of protective coatings for aluminum in the automotive industry where high chemical stability in alkaline environments is required. The coatings have been successfully applied to stainless steel substrates. However the traditional thermal curing of HSQ involves heating to elevated temperatures, which are beyond those applicable for most industrial applications of aluminum. In this study low temperature processes are tested and evaluated as possible alternatives to the traditional high temperature cure. Thin HSQ films are deposited onsilicon wafers to model the degree of curing induced by the low temperature methods in comparison to thermal curing.Furthermore, the coatings are applied on aluminum substrates to evaluate the adhesion and corrosion resistance of the films.
Original languageEnglish
JournalNASF Surface Technology White Papers
Volume80
Issue number4
Number of pages8
Publication statusPublished - 2016

Keywords

  • Aluminum
  • Corrosion
  • Electron beam curing
  • Hydrogen silsesquioxane
  • HSQ
  • Vitreous enameling

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