전기도금계에서 유발되는 자연대류에 의한 물질전달 특성 = Mass-Transfer Characteristics Included by Natural Convection in an Electrochemical Deposition System

다국어 초록 (Multilingual Abstract)

In the present study, onset conditions and transfer characteristics have been investigated experimentally through electrochemical technique. Cupric sulfate-sulfuric acid solution confined between two horizontal copper electrodes was used. The magnitude of current estimating transfer rate was measured at an adopted constant electrical potential. Due to the change of the polarity of electrodes, the diffusion and natural convection have been induced respectively. The dimensionless onset time and correlation equations were as follows.
r=70.57Ra-?
Sh=0.04731Fa?
Above results have differences comparing with existing data which ignore the electrical migration effects. It is considered that the difference between ours and others comes from the effects of migration which we have applyed quantatively. Also, it is ween that the electrical migration not only retards the onset of natural convection, but reduces the transfer rates.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 전기도금과 물질전달
• 2.1 전기도금계
• 2.2 한계전류
• 2.3 지배방정식과 주요무차원수
• 3. 실험
• 3.1 시료의 물성치
• 3.2 실험장치와 실험절차
• 4. 결과 및 검토
• 4.1 한계전류의 측정과 물질전달
• 4.2 자연대류 발생시점의 측정
• 4.3 Rayleigh 소와 Sherwood 수간의 상관관계
• 5. 결론
• 사용기호 및 부호
• 참고문헌