@phdthesis{Nikolajtschuk2019,
  author    = {Pawel Anatoljewitsch Nikolajtschuk},
  title     = {Thermodynamische Einsch{\"a}tzung der chemischen und elektrochemischen Stabilit{\"a}t von Siliziden der {\"U}bergangsmetalle der vierten Periode},
  journal    = {Thermodynamic Assessment of Chemical and Electrochemical Stability of Fourth Period Transition Metals Silicides},
  url       = {https://nbn-resolving.org/urn:nbn:de:gbv:9-opus-24859},
  pages     = {641},
  year      = {2019},
  abstract  = {The present work is a cumulative dissertation that covers the research work of the author at the Department of Analytical and Physical Chemistry of Chelyabinsk State University. It contains a short description of the study and a set of attached publications in peer-reviewed journals and conference proceedings. The phase and chemical equilibria in binary systems Me – Si (where Me is the 4th-period transition metal) as well as Mo – Si, Mn – Ge and Fe – Ge at low temperatures were considered. The solid solubility of silicon in vanadium, chromium, manganese, iron, nickel, cobalt and copper and that of germanium in manganese and iron was estimated. The phase equilibria in Me – Si – O, Mo – Si – O, Mn – Ge – O and Fe – Ge – O ternary systems at standard conditions were considered from a thermodynamic viewpoint. The atmospheric corrosion of transition metals silicides and manganese and iron germanides was discussed. The chemical and electrochemical equilibria in Me – Si – H2O, Mo – Si – H2O, Mn – Ge – H2O and Fe – Ge – H2O systems were considered from a thermodynamic viewpoint. Pourbaix diagrams for some 4th-period transition metals and molybdenum, as well as for silicon, were revised. The potential – pH diagrams for Me – Si – H2O, Mo – Si – H2O, Mn – Ge – H2O and Fe – Ge – H2O systems were plotted in the first time. The corrosion-electrochemical behaviour of transition metals silicides and manganese and iron germanides in aqueous media was discussed. The potential – pH diagrams for some siliceous brasses and bronzes (which are multicomponent alloys containing both transition metals and silicon) were plotted, and the corrosion of these alloys in aqueous media was discussed. Method of estimation of corrosion-electrochemical behaviour of multicomponent alloys, which takes into account both thermodynamic and kinetic data and is based on mutual construction of equilibrium and polarisation potential – pH diagrams, was described. Its usage was illustrated in the example of the structural steel 20KT.},
  language  = {en}
}