Due to the position of the cathode with respect to the anode, a wide variation in current density can be observed along the cathode. 267 ml Hull cell ( all dimensions in mm ) ( a ) Isometric view and ( b ). The Hull cell is a trapezoidal chamber equipped with two non-parallel electrodes. where I is the cell current, L is the distance of the cathode, C1 and C2 are. Surface morphology of the Cu deposits is examined using scanning electron microscopy (SEM). optimal plating conditions is a Hull cell deposition. 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. 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. 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. Richard Ostrander Hull in the 1930´s, this simple test revolutionized the world of electroplating as it was now possible to test the many variables of a plating solution on a miniature scale which could then be reproduced on the Production Plating Lines. An approximate analytical expression for the primary current distribution of a modified Hull cell is presented. HULL Cell Cathodes for the ingenious HULL CELL TEST. In this gure, the exchange current density j 0, ,eff j and the cathodic transfer coefcient ci, are. 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. parameters from a Hull cell deposition, an example of the distribu-tion of the TLS R calculated between a Hull cell deposition with 0.25A and 30min and the simulated f () ci eff j, j 0, ,-curves of the database is shown in Fig.
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