Electrodeposition of Chromium and Copper in Magnetic Fields
Abstract
Our previous research had demonstrated several significant effects caused by the application of magnetic fields during electrolytic thinning and electrodeposition of metals. The purpose of the research supported by this contract was to continue studies of these effects. We sought to determine what applied magnetic field strength and other parameters of electrolysis would maximize the following effects: a) Improvement in the uniformity of both anode and cathode processes. Because the Hall effect is greatest where the electric field is greatest, a magnetic field improves uniformity of electrodes process. b) Increase in the speed of electrodeposition. Depletion of metal ions in the layer of electrolyte adjacent to the cathode normally limits the rate of electrodeposition of metals. The Lorentz force causes intense stirring in this layer, thus permitting replenishment of the metal ions and increase in the speed of deposition. c) Inhibition of hydrogen gas formation during electrodeposition. An additional goal of this research was to determine effects of magnetic fields on the properties of metallic deposits.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1985
- Accession Number
- ADA154648
Entities
People
- J. Dash
Organizations
- Portland State University