Conferences

Anode Oxidation of Zr–Ni Intermetallics in an Alkali Electrolyte after Surface Treatment with Hydrogen Atoms under Cathode Polarization

  
V.Lavrenko,
 
V.Lavrenko,
  

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2013, #05/06
http://www.materials.kiev.ua/article/941

Abstract

The influence of surface treatment of hydrogen sorbents (Zr–Ni intermetallics) with hydrogen atoms under cathode polarization on their oxidation in a 30% KOH solution is studied. It is shown that there is no passivation film on the surface near the stationary potential under anode polarization for ZrNi5, which is not the case for Zr2Ni and ZrNi. It is established that surface treatment with hydrogen atoms under cathode polarization leads to an increase in the rate of anodic oxidation in the Zr2Ni → ZrNi → ZrNi5 row.


CATHODE POLARIZATION IN 30% KOH SOLUTION, RATE OF ANODIC OXIDATION, ZR–NI HYDROGEN SORBENTS