ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The ZrO2 coatings were deposited by sol-gel techniques on copper and steel. The filmmorphology has been investigated by AFM technique. The performance of ZrO2 films as protectivelayers was investigated by electrochemical techniques and optical microscopy. Firstly, theelectrochemical behaviour of the uncoated copper and steel substrates was investigated by cyclicvoltammetry in HCl (1 M) and NaOH (0.4 M) solutions having various pH values. Secondly, theanticorrosion protective effect of sol-gel ZrO2 coatings was evaluated by potentiodynamicmeasurements in degrading media in which substrates were immersed for 1-90 days. Thecomparisons of electrochemical parameters allow an explanation of the role of the ZrO2 coatings inthe increased resistance of steel and copper against corrosion in moderately aggressiveenvironments
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.537-538.247.pdf
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