Open AccessAnodic behavior of manganese silicide-germanide of the composition Mn5Si3-2.4Ge2.4 in a solution of Na2SO4
Author(s) -
Данил Александрович Мясников,
Ирина Леонидовна Ракитянская
Publication year - 2020
Publication title -
vestnik permskogo universiteta. seriâ himiâ
Language(s) - English
Resource type - Journals
ISSN - 2223-1838
DOI - 10.17072/2223-1838-2020-1-74-83
Subject(s) - passivation , anode , corrosion , materials science , manganese , germanide , cyclic voltammetry , diffusion , inorganic chemistry , metal , metallurgy , chemical engineering , chemistry , layer (electronics) , electrode , electrochemistry , silicon , nanotechnology , thermodynamics , germanium , physics , engineering
The anodic behavior of the three-component metal-like system Mn5Si3-2,4Ge2,4 and its individual components Mn, Si and Ge in a solution of sodium sulfate was studied by cyclic voltammetry. It was found that the corrosion resistance of manganese silicido-germanide is lower than individual components, however at big anodic potential shifting material passivates and in concentrated Na2SO4 solution passivation occurs easier and faster than in diluted one. The increasing of potential sweep leads to the inhibition of passivation process and this effect is dealing with the specifying role of diffusion in the protection layer formation process.