An ever growing number of studies involves the production of thin metal oxide films for various purposes, from surface hardening to sensing, to the production of self-cleaning surfaces. Among metallic oxides, titanium dioxide is by far the most investigated: it can be produced by anodic oxidation of titanium in a large variety of electrolytes, either acid, alkaline, or neutral, and within certain limits oxide thickness is linearly proportional to the cell voltage applied. Common industrial plants for titanium anodising use acid electrolytes, which may pose safety issues as well as plant corrosion issues. This article proposes a screening of most common, plus some uncommon, electrolytic solutions used in the anodising of titanium, in order to identify suitable alternatives to acids in the range of neutral electrolytes. Oxides produced in optimal conditions are fully characterised, and treatment robustness is investigated, in order to understand the feasibility of technological transfer. A selection of anodising electrolytes and conditions is finally proposed for applications in architectural and jewellery applications, together with a method for colour restoration in case of wear or mechanical damaging.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.