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Multilayer Al2O3/TiO2 Atomic Layer Deposition coatings for the corrosion protection of stainless steel

Marin, E. and Guzman, L. and Lanzutti, A. and Ensinger, Wolfgang and Fedrizzi, L. :
Multilayer Al2O3/TiO2 Atomic Layer Deposition coatings for the corrosion protection of stainless steel.
[Online-Edition: http://www.sciencedirect.com/science/article/pii/S0040609012...]
In: Thin Solid Films, 522 pp. 283-288.
[Article] , (2012)

Official URL: http://www.sciencedirect.com/science/article/pii/S0040609012...

Abstract

Atomic Layer Deposition (ALD) is used to deposit conformal nanometric layers onto different substrates. In this paper, characterization of different ALD layers has been carried out in order to evaluate the suitability of this deposition technolnique for the corrosion protection of stainless steel substrates. Al2O3, TiO2 and multilayer configurations, have been deposited on AISI 316 austenitic stainless steel and have then been investigated using atomic force microscopy (AFM), glow discharge optical emission spectrometry (GDOES), scanning electron microscopy (SEM), Vickers indentation and potentiodynamic polarizations (PP). AFM has been used to obtain a morphological characterization and to evaluate the thickness of the depositions. SEM has been used to investigate the presence of deposition defects. GDOES has been used to obtain a compositional profile. Vickers indentations were used in order to evaluate the resistance to delamination. PPs have been used in order to evaluate the corrosion protection. The results have showed that corrosion resistance can be effectively enhanced. Multilayer configuration proved to be more effective than single layers configurations.

Item Type: Article
Erschienen: 2012
Creators: Marin, E. and Guzman, L. and Lanzutti, A. and Ensinger, Wolfgang and Fedrizzi, L.
Title: Multilayer Al2O3/TiO2 Atomic Layer Deposition coatings for the corrosion protection of stainless steel
Language: English
Abstract:

Atomic Layer Deposition (ALD) is used to deposit conformal nanometric layers onto different substrates. In this paper, characterization of different ALD layers has been carried out in order to evaluate the suitability of this deposition technolnique for the corrosion protection of stainless steel substrates. Al2O3, TiO2 and multilayer configurations, have been deposited on AISI 316 austenitic stainless steel and have then been investigated using atomic force microscopy (AFM), glow discharge optical emission spectrometry (GDOES), scanning electron microscopy (SEM), Vickers indentation and potentiodynamic polarizations (PP). AFM has been used to obtain a morphological characterization and to evaluate the thickness of the depositions. SEM has been used to investigate the presence of deposition defects. GDOES has been used to obtain a compositional profile. Vickers indentations were used in order to evaluate the resistance to delamination. PPs have been used in order to evaluate the corrosion protection. The results have showed that corrosion resistance can be effectively enhanced. Multilayer configuration proved to be more effective than single layers configurations.

Journal or Publication Title: Thin Solid Films
Volume: 522
Publisher: Elsevier Science Publishing Company
Uncontrolled Keywords: AFM, AISI 316 stainless steel, Al2O3, ALD, Corrosion protection, GDOES, Polarization curves, TiO2
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Material Analytics
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 19 Nov 2012 12:25
Official URL: http://www.sciencedirect.com/science/article/pii/S0040609012...
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