Processing and properties of GPTMS-TEOS hybrid coatings on 5083 aluminium alloy

Hamed Rahimi, Reza Mozafarinia, Reza Shoja Razavi, Ebrahim Paimozd, Akbar Hojjati Najafabadi

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

27 Citations (Scopus)

Abstract

The hybrid nanocomposite coatings were processed in solution using acid-catalyzed hydrolysis and condensation of precursors 3-Glycidoxypropyl trimethoxysilane (GPTMS) and Tetraethoxysilane (TEOS) forming self assembled nanoscale composite. Coating were applied by dipping 5083 aluminium alloy in sol-gel solutions at several stages and different aging times. Effect of GPTMS-TEOS sol's aging time on thickness, adhesion, and corrosion behaviour of hybrid organic-inorganic GPTMS-TEOS sol-gel coatings have been investigated. The results indicated that thickness of hybrid coatings increased but adhesion decreased with increasing aging time. Adhesion test and electrochemical polarization behaviour reveal that if the coating process was chosen correctly, the coating had a good adhesion strength and corrosion resistance.

Original languageEnglish
Title of host publicationAdvanced Materials
Pages736-742
Number of pages7
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011 - Changsha, China
Duration: 28 May 201130 May 2011

Publication series

NameAdvanced Materials Research
Volume239-242
ISSN (Print)1022-6680

Conference

Conference2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011
Country/TerritoryChina
CityChangsha
Period28/05/1130/05/11

Keywords

  • Aging
  • Corrosion
  • Hybrid coating
  • Sol-gel

ASJC Scopus subject areas

  • General Engineering

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