Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403


공학

한국표면공학회지 (37권6호 319-325)

Co-deposition of Si Particles During Electrodeposition of Fe in Sulfate Solution

황산철 도금액 중 Si 입자의 공석 특성

문성모;이상열;이규환;장도연;
Moon Sung-Mo;Lee Sang-Yeal;Lee Kyu-Hwan;Chang Do-Yon;

한국기계연구원 재료기술연구소 표면연구부;

Abstract

Fe thin films containing Si particles were prepared on metallic substrates by electrodeposition method in sulfate solutions and the content of codeposited Si particles in the films was investigated as a function of applied current density, the content of Si particels in the solution, solution pH, solution temperature and concentration of $FeSO_4$$7H_2$O in the solution. The amount of Si codeposited in the film was not dependent on the applied current density, solution pH and solution temperature, while it was dependent on the content of Si particles in the solution and the concentration of $FeSO_4$$7H_2$O in the solution. The amount of Si codeposited in the film increased with increasing content of Si particles in the solution but reached a maximum value of about 6 wt% when the content of Si particles in the solution exceeds 100 g/l. On the other hand, the content of Si codeposited in the film increased up to about 17 wt% with decreasing concentration of $FeSO_4$$7H_2$O in the solution. These results would be applied to the fabrication of very thin Fe-6.5 wt% Si sheets for electrical applications.

Keywords

Fe thin film;Fe-6.5 wt%Si sheet;Co-deposition Electroforming;Electrophoretic deposition;