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ABSTRACT
As the use of hexavalent chromium is now tightly regulated, researchers and industry have turned to new ways of obtaining anticorrosion coatings on metallic substrates. Based on molecular precursors in solution, film formation using sol-gel can achieve oxide networks at a moderate temperature through a series of hydrolysis-condensation reactions.
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François-Xavier PERRIN: Engineer from the École nationale supérieure de synthèses de procédés et d'ingénierie chimiques d'Aix-Marseille (ENSSPICAM) - Senior lecturer at the Materials for Specific Purposes Laboratory (MFS), Université du Sud Toulon-Var
INTRODUCTION
With the use of hexavalent chromium now heavily regulated, researchers and manufacturers have turned their attention to new ways of obtaining anticorrosion coatings on metal substrates.
Sol-gel film formation enables oxide networks to be formed at moderate temperature from molecular precursors in solution, by a succession of hydrolysis-condensation reactions.
This is the process presented in this dossier.
Readers interested in the development of new non-chromating surface treatment technologies can also consult the dossier by the same author: , Anticorrosion coating obtained by electrochemical polymerization appeared in this database.
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Inorganic films and protective hybrids obtained by the sol-gel process
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