화학공학소재연구정보센터
Electrochimica Acta, Vol.53, No.1, 161-166, 2007
Copper electrodeposition in a magnetic field
The copper electrodeposition from a sulfuric acid solution was investigated in a magnetic field (0-5 T). Linear sweep voltammetry showed that both the limiting current density and the hydrogen evolution were remarkably modified in a magnetic field. Depending on the cathode overpotential, the surface morphology was divided into two groups: faceted structure and columnar dendrite. The faceted structure appeared in the electrochemical activation region and it changed into the finer grain size in a magnetic field. Furthermore, the pole figure measurement suggested that the texture evolution pattern slightly shifted from two-dimensional to three-dimensional crystal growth in a magnetic field (>= 3 T). No essential microstructural variation due to the magnetic effect was observed in spite of considerable morphological variations in the region purely controlled by the mass transfer. (C) 2007 Elsevier Ltd. All rights reserved.