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The application of ENA and physico-mechanical tests for evaluation of the protective performance of ZRP modified by combinati on of Zn dust with carbon type fillers

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25794787%3A_____%2F17%3AN0000025" target="_blank" >RIV/25794787:_____/17:N0000025 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    The application of ENA and physico-mechanical tests for evaluation of the protective performance of ZRP modified by combinati on of Zn dust with carbon type fillers

  • Original language description

    The possible effects on the protection performance of ZRP modified by combination of Zn dust with carbon nanotubes or other type of carbon fillers were investigated using electrochemical noise analysis (ENA) and physico-mechanical tests. Role of Zn content on the protection performance of this type of ZRP was tested for 40 vol. % Zn and 65 vol. % Zn (on dry film). Results of EN measurements during 168 hrs immersion tests in 0,05 M NaCl as well as of physico-mechanical tests performed after conditioning of coated test panels at air conditioning room (23 ± 2)°C and relative humidity of (50 ± 5)% were compared. The motivation for doing this was to generate supporting evidences and to deepen the understanding of key factors in mechanism of degradation of this type of coatings. Both EN measurements and physico-mechanical tests indicate that coatings containing 40 vol. % Zn in combination with carbon nanotubes provide very good barrier protection resulting in rather good mechanical properties of coatings confirmed by physico-mechanical tests as well as low sensitivity to blistering process and possible delamination in immersion tests. This paper is contained in Proceedings of EUROCORR 2017 (Prague, Czech Republic).

  • Czech name

  • Czech description

Classification

  • Type

    O - Miscellaneous

  • CEP classification

  • OECD FORD branch

    10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2017

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů