Effect of Hydrogen Plasma on Model Corrosion Layers of Bronze

5th International Workshop & Summer School on Plasma Physics 2012

Fojtiková, P.^1 ; Sázavská, V.^1 ; Mika, F.^2 ; Krma, F.^1

Faculty of Chemistry, Brno University of Technology, Purkyova 118, Brno

612 00, Czech Republic^1

Institute of Scientific Instruments, Academy of Sciences Czech Republic, V.v.i., Královopolská 147, Brno

612 00, Czech Republic^2

关键词: Copper electrodes;    Corrosion layers;    Corrosive environment;    Cylindrical reactors;    Effect of hydrogen;    Hydrogen plasmas;    Plasma discharge;    Reduction process;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/715/1/012006/pdf
DOI  :  10.1088/1742-6596/715/1/012006

来源: IOP

【 摘 要 】

Our work is about plasmachemical reduction of model corrosion layers. The model corrosion layers were produced on bronze samples with size of 10 x 10 x 5 mm3, containing Cu and Sn. Concentrated hydrochloric acid was used as a corrosive environment. The application of reduction process in low-pressure low-temperature hydrogen plasma followed. A quartz cylindrical reactor with two outer copper electrodes was used. Plasma discharge was generated in pure hydrogen by a RF generator. Each corroded sample was treated in different conditions (supplied power and a continual or pulsed regime with a variable duty cycle mode). Process monitoring was ensured by optical emission spectroscopy. After treatment, samples were analyzed by SEM and EDX.