Experimental Investigation on the Bi-directional Growing Mechanism of the Foils Laminate Approach in AAO Fabrication

J.-Y. Fan (1) , F.-C. Yang (2) , M.-C. Chien (3) , G.-J. Wang

1 Dep. of Mechanical Eng.
2 Institute of Industrial Engineering
3 Department of Electronic Engineering

The foils laminate approach can be implemented to grow bi-directional porous pattern from both the top and bottom surfaces of an aluminum foil. It was intuitively inferred that leakage of the etchant between the foils may a feasible cause to have the upward pores grow in the notches of the unpolished surface. The leakage blocking and triple layers laminate experiments were conducted to verify this hypothesis. Experimental results disprove this leakage hypothesis. It is further inferred that the applied electric field pulls the oxygen ions of the electrolyte in penetrating the constant thickness barrier layer to oxidize the aluminum metal and fabricate the bottom porous array. Experiments with the process time being reduced by two hours validate this inference

Mots clés: anodic aluminum oxide; foils laminate approach; leakage blocking; triplex foils laminate

Domaines: Science des matériaux [cond-mat.mtrl-sci]

J.-Y. Fan, F.-C. Yang, M.-C. Chien, G.-J. Wang. Experimental Investigation on the Bi-directional Growing Mechanism of the Foils Laminate Approach in AAO Fabrication. ENS 2006, Dec 2006, Paris, France. pp.62-65. ⟨hal-00166766⟩