The zinc coating is put on at the mill to. Surface morphology of the Cu deposits is examined using scanning electron microscopy (SEM). lacquer, which is suitable for testing bright brass, bright copper and bright nickel. The current distribution (primary, secondary, and tertiary) results obtained from the numerical simulation are compared with the experimental results and a satisfactory match is found. The Hull cell is a specially designed trapezoidal test cell used for carrying out. Experimentally, single Cu metal electrodeposition is carried out at different applied average current densities (2, 4.1, and 8.2 mA ) in a modified Hull. Kocour Hull Cell Cathodes are heavy gauge, highly polished to a mirror finish with the face surface fully protected by plastic. The above figure is similar to the Hull Cell Testing concept, whereby the cathode is set at an angle from the anode to simulate varying current densities. The numerical simulation result of the primary current distribution is then compared with the analytical solution and a good match is found. The current distributions (primary, secondary, and tertiary) in the cell have also been calculated at different applied average current densities (2, 4.1, and 8.2 mA ) through numerical simulation by using finite element based software. The primary current distribution along the cathode surface is noticed varying in controlled manner as a function of position on the substrate. An approximate analytical expression for the primary current distribution of a modified Hull cell is presented. Abstract : The primary current distribution and the resistance of a modified Hull cell are calculated by using conformal mapping technique coupled with numerical evaluation of the resulting integral equations. The electrodeposition of copper from an acid sulphate solution has been studied in a Hull cell fitted with four types of cathode a carbon plate or a reticulated vitreous carbon (RVC) sheet.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |