Thermodynamic assessment of chemical and electrochemical stability of nickel–silicon system alloys

Abstract

Phase and chemical equilibria in Ni–Si system at 298K are considered. The possible maximum solid solubility of Si in fcc-Ni at 298K is estimated.The Ni–Si–O state diagram at 298K is plotted. The Ni–Si–O system invariant conditions are calculated. The potential–pH diagram of the Ni–Si–H2O system at 298K, air pressure of 1bar and activities of ions in solution, equal to 1mol/l is plotted. Basic chemical and electrochemical equilibria in Ni–Si–H2O system are considered.