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| Author(s): |
Gelson Gomes Falcão Filho
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Escola Politécnica (EP/BC) |
| Defense date: | 2005-04-26 |
| Examining board members: |
Edison Gonçalves;
Ivan Napoleão Bastos;
Neusa Alonso Falleiros;
Marcelo Camargo Severo de Macedo;
Izabel Fernanda Machado
|
| Advisor: | Edison Gonçalves |
| Field of knowledge: | Engineering - Mechanical Engineering |
| Indexed in: | Banco de Dados Bibliográficos da USP-DEDALUS |
| Location: | Universidade de São Paulo. Biblioteca Central da Escola Politécnica; EPBC/FT-2111; Universidade de São Paulo. Escola Politécnica. Biblioteca de Engenharia Civil; EPMN/FT-2111 |
| Abstract | |
In order to investigate the copper corrosion phenomenon, an electrochemical and mathematical model is proposed, which is capable to simulate the anodic dissolution process of copper. Through the numeric treatment of the reactions system equations linked to the anodic dissolution process, data are generated by the computational simulation for investigating mechanisms and kinetics of the processes involved in the phenomenon. To simulate the steady-state condition, Gaussian Elimination method is used with partial Pivoting and, for non-stationary condition, an adaptive Runge Kutta integration scheme is employed, conjugated with Richardson extrapolation. Electrochemical experiments are performed for planar and rotational electrodes to validate the proposed model. The computational codes developed are able to investigate the influence of parameters, such as partial reactions constant (k), concentration of soluble species, transport phenomena and metal surface properties on the anodic polarization of copper. The results of the simulations agree with the experimental ones. (AU) | |