Microstructural characterization of a corrosion-resistant hydrotalcite coating on aluminum

C. A. Drewien, C. R. Hills, R. G. Buchheit

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


Microstructural characterization of the coating is performed using both scanning electron microscopy (SEM) and transmission electron microscopy (TEM) to model the electrochemical corrosion behavior and to assess the impact of changing processing variables on the overall corrosion performance. Hydrotalcite coatings were formed by immersion of an 1100 aluminum alloy into a room temperature, alkaline bath of lithium carbonate and lithium hydroxide for 15 minutes. Microstructural analysis shows that the coating consists of two layers. The outer layer appears porous and is similar in appearance to the SEM images. The inner layer adjacent to the aluminum substrate appears to be less porous and is 0.5 to 1 μm in width.

Original languageEnglish
Pages (from-to)850-851
Number of pages2
JournalProceedings - Annual Meeting, Microscopy Society of America
StatePublished - 1993
EventProceedings of the 51st Annual Meeting Microscopy Society of America - Cincinnati, OH, USA
Duration: Aug 1 1993Aug 6 1993

ASJC Scopus subject areas

  • General Engineering


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