Polarization phenomena in the electrodeposition of a finely divided iron-cobalt-nickel alloy
| Autor: | T. M. Shvets, V. S. Sperkach, É. M. Natanson, Z. M. Mel'nichenko |
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| Rok vydání: | 1971 |
| Předmět: |
Materials science
Hydrogen Inorganic chemistry Metals and Alloys chemistry.chemical_element Electrolyte Condensed Matter Physics Cathode Ion law.invention Metal Nickel chemistry Mechanics of Materials law visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Polarization (electrochemistry) Cobalt |
| Zdroj: | Soviet Powder Metallurgy and Metal Ceramics. 10:347-350 |
| ISSN: | 1573-9066 0038-5735 |
| DOI: | 10.1007/bf00793847 |
| Popis: | 1. Polarization studies of the electrodeposition of finely divided iron-cobalt-nickel alloys have shown that changing the electrolyte concentration from 50 to 500 g/liter of iron, cobalt, and nickel chlorides substantially decreases cathode polarization (1.5 V). 2. Raising the concentration of hydrogen ions in the electrolyte increases cathode polarization. At the same time, the inclination of the polarization curve relative to the axis of abscissas becomes less steep. 3. Raising the bath temperature from 10 to 45°C shifts the polarization curve to the left by 4 V. 4. Cathode polarization depends on the nature of the cathode metal. For the cathode materials investigated, the order of the extents of polarization is: W < Ni < Mo < Cu. 5. The strongest influence on the magnitude of cathode polarization can be exerted by adding certain substances to the electrolyte. Some additions are capable of shifting the polarization curve to the right by 6–7 V compared with theϑ-i curve recorded for the pure electrolyte. |
| Databáze: | OpenAIRE |
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