Effect of SiO[sub 2] colloid on the electrodeposition of zinc-iron group metal alloy composites
- Nippon Steel Corp., Chiba (Japan). Steel Research Lab.
The mechanism of codeposition in Zn-based composite platings has yet to be clarified in detail. In this study, electro-deposition of Zn-Fe group metal-SiO[sub 2] composite was performed from the electrolytes containing Zn, Fe group metal cations, and SiO[sub 2] colloid. An induced codeposition was found between Fe group metal and SiO[sub 2] colloid. This result is explained from the adsorption of Fe group metal ions on SiO[sub 2] colloid and the agglomeration of SiO[sub 2] colloid on the cathode. Extending this knowledge to the Zn-Cr-SiO[sub 2] system composites contain Cr and SiO[sub 2] contents of up to 18 and 10 weight percent, respectively, have been obtained for the first time. In this system, SiO[sub 2] catalyzed the Cr codeposition. These composites showed excellent corrosion resistance.
- OSTI ID:
- 7108952
- Journal Information:
- Journal of the Electrochemical Society; (United States), Vol. 141:4; ISSN 0013-4651
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CHROMIUM ALLOYS
ELECTRODEPOSITION
COMPOSITE MATERIALS
CORROSION RESISTANCE
FABRICATION
SILICON OXIDES
ZINC ALLOYS
CATALYTIC EFFECTS
CHROMIUM SULFATES
COBALT
COBALT SULFATES
IRON SULFATES
NICKEL
NICKEL SULFATES
ZINC SULFATES
ALLOYS
CHALCOGENIDES
CHROMIUM COMPOUNDS
COBALT COMPOUNDS
DEPOSITION
ELECTROLYSIS
ELEMENTS
IRON COMPOUNDS
LYSIS
MATERIALS
METALS
NICKEL COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SILICON COMPOUNDS
SULFATES
SULFUR COMPOUNDS
SURFACE COATING
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
ZINC COMPOUNDS
360101* - Metals & Alloys- Preparation & Fabrication
360601 - Other Materials- Preparation & Manufacture
360604 - Materials- Corrosion
Erosion
& Degradation