Formation and effect of the branched layer during the tunnel etching of aluminum foil
Source abstract
Abstract
In this study, branched layers formed under various conditions of the electrochemical etching of aluminum foils were observed. Tunnel clustering arose from the random distribution of high-density tunnels, greatly increasing the thickness of the branched layer; this occurred because the tunnel clustering increased the tunnel width, thereby facilitating electrolyte transport in vertical tunnels. In contrast, tunnel tapering blocked the branched tunnels generated at a certain depth. The thickened branched layer greatly reduced the foil thickness during tunnel widening, considerably reducing the surface area and the specific capacitance obtained for the etched aluminum foil.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Anodic Oxide Films and Nanostructures · Photonic Crystals and Applications · Nanofabrication and Lithography Techniques
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