Galvanic deposition of Hydroxyapatite/Chitosan/Collagen coatings on 304 stainless steel

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3 Citazioni (Scopus)


The galvanic deposition method was used to deposit Hydroxyapatite/Chitosan/Collagen coatings on 304 stainless steel. Galvanic deposition is an alternative and valid way to fabricate bio-coatings with high biocompatibility and good anticorrosion properties. Physical-chemical characterizations were carried out to investigate chemical composition and morphology of the samples. Coatings consist of a mixture of calcium phosphate (Brushite and Hydroxyapatite) with chitosan and collagen. Corrosion tests were performed in the simulated body fluid (SBF) after different aging times. Results show that, in comparison with bare 304 stainless steel, coating shifts corrosion potential to anodic values and reduces corrosion current density. Nevertheless, the aging in SBF led to a completely conversion of brushite into hydroxyapatite. The release of metal ions, measured after 21 days of aging in SBF solution, is very low due to the presence of coating that slow-down the corrosion rate of steel.
Lingua originaleEnglish
pagine (da-a)1399-1404
Numero di pagine6
RivistaChemical Engineering Transactions
Stato di pubblicazionePublished - 2021

All Science Journal Classification (ASJC) codes

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