Effect of Plasma Surface Pretreatment on Ce3+-Doped GPTMS-ZrO2 Self-Healing Coatings on Aluminum Alloy
Joint Authors
Jyothirmayi, A.
Subasri, R.
Kumar, N.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-10
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
A hybrid sol synthesized from an acid-catalyzed hydrolysis and condensation reaction of 3-glycidoxypropyltrimethoxysilane (GPTMS) and zirconium n-propoxide was used as a matrix nanocomposite sol.
To this sol, 0.01 M Ce3+ was added as an inhibitor to provide a self-healing coating system.
The effect of an atmospheric air plasma surface pretreatment of aluminum alloy substrates prior to coating deposition of Ce3+-doped/undoped GPTMS-ZrO2 sol was studied with respect to corrosion protection.
Coatings were generated by a dip coating technique employing a withdrawal speed of 5 mm/s and thermally cured at 130° C for 1 h.
The coated Al surfaces were characterized using potentiodynamic polarization studies and electrochemical impedance spectroscopy.
They were also subjected to accelerated corrosion testing using neutral salt spray test with 5% NaCl solution after creating an artificial scratch for more than 200 hours to assess the self-healing ability of coatings.
It was observed that cerium (III) doping was effective for corrosion protection during long-term exposure to the electrolyte solution, and a plasma surface pretreatment of substrates prior to coating deposition of Ce3+-doped coatings improved the adhesion of coatings that provides enhanced corrosion protection along with self-healing ability exhibited in case of damages/scratches caused in the coating.
American Psychological Association (APA)
Kumar, N.& Jyothirmayi, A.& Subasri, R.. 2012. Effect of Plasma Surface Pretreatment on Ce3+-Doped GPTMS-ZrO2 Self-Healing Coatings on Aluminum Alloy. ISRN Corrosion،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-477069
Modern Language Association (MLA)
Kumar, N.…[et al.]. Effect of Plasma Surface Pretreatment on Ce3+-Doped GPTMS-ZrO2 Self-Healing Coatings on Aluminum Alloy. ISRN Corrosion No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-477069
American Medical Association (AMA)
Kumar, N.& Jyothirmayi, A.& Subasri, R.. Effect of Plasma Surface Pretreatment on Ce3+-Doped GPTMS-ZrO2 Self-Healing Coatings on Aluminum Alloy. ISRN Corrosion. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-477069
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-477069