کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4908243 | 1426593 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical simulation of electro-deposition process influenced by force convection and migration of ions
ترجمه فارسی عنوان
شبیه سازی عددی از فرآیند الکترولیز کردن تحت تأثیر جابجایی نیرو و مهاجرت یون ها
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کلمات کلیدی
نفوذ، لایه انتشار موثر، مهاجرت، نیروی جابجایی، تراکم جریان گذرا،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Electro-deposition process is one of the main steps in the LIGA procedure to fabricate microstructures. In this paper, one-dimensional modeling of Nickel electro-deposition process is implemented on Rayan and developed for simulation of time-dependence diffusion and migration of charge species with reduction reactions on the cathode surface. This model is proposed by considering governing equations on electro-kinetic phenomena consist of Nernst-Plank equation and Poisson's equation of electric potential. Transport of ions toward the cathode is considered based on the effect of convection, reaction rate, diffusion and migration. The numerical results cover two series of data consisting of effective diffusion layer thickness δeff and the transient current density. The effect of force convection and diffusion terms on effective diffusion layer δeff is validated by Ribeiro analytical model. The transient current densities for different applied voltages are in well agreement with Hyde and Compton's experimental model. Effect of every term on effective diffusion layer δeff is shown and we found that for velocity lower than vc = â 0.0005 cm sâ 1, convection term does not have any influences on effective diffusion layer δeff . Moreover, the relationship between the applied voltages, current density, effective diffusion layer δeff and hydrodynamic velocity is proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 782, 1 December 2016, Pages 117-124
Journal: Journal of Electroanalytical Chemistry - Volume 782, 1 December 2016, Pages 117-124
نویسندگان
M. Zahraei, M.S. Saidi, M. Sani,