Electrochemical characterisation of the parallel disk device

A novel Parallel Disc Device (PDD) has been designed and built at the Process Engineering and Light Metals (PELM) Centre of Central Queensland University. The device, built primarily to study aspects of flow accelerated corrosion, consists of two discs separated by a precision controlled gap. The bottom disc (which accommodates the working electrode) is immobile while the top disc rotates. The PDD is capable of generating very high wall shear rates and the shear of liquid at the working electrode is purely tangential as long as flow between the discs remains laminar.