Cold Atmospheric Plasma Treatment of Steel Buoys for Wave Energy Converters
2011 (English)In: Plasma Processes and Polymers, ISSN 1612-8850, E-ISSN 1612-8869, Vol. 8, no 7, 658-663 p.Article in journal (Refereed) Published
Steel sheets used for ocean buoys in the linear wave energy converters have been treated by cold atmospheric plasmas in Ar, Ne, and the wet air. The contact angle has decreased from about 48 degrees at an untreated surface to a minimum of about 248, depending on the plasma and the treatment time. This corresponds to an increase of the surface energy from about 57 to 69 mN/m. Comparison of the XPS spectra before and after plasma treatment confirmed important role of the plasma activated oxygen. The hydrophilicity of treated surfaces deteriorates within about 120 min. Immediate painting of treated surfaces has lead to considerable better paint adhesion than on untreated surfaces. The plasma treatment of buoys before painting is, therefore, expected to improve their corrosion resistance and lifetime.
Place, publisher, year, edition, pages
2011. Vol. 8, no 7, 658-663 p.
atmospheric plasma treatments, fused hollow cathodes, paint adhesion, steel surfaces, wave energy converters
Engineering and Technology
Research subject Engineering Science with specialization in Science of Electricity
IdentifiersURN: urn:nbn:se:uu:diva-157039DOI: 10.1002/ppap.201100015ISI: 000293273400009OAI: oai:DiVA.org:uu-157039DiVA: diva2:434452