Atmospheric Corrosion of Nuclear Waste Containers

Atmospheric Corrosion of Nuclear Waste Containers
4-year PhD studentship – start date on or before 1st October 2018

Intermediate-level nuclear waste is currently stored in stainless steel containers, and coated cast iron containers may be used in the future. It is important to understand the key atmospheric corrosion mechanisms that might take place if they are stored above ground before emplacement in an underground disposal facility. The aim of the work is to develop the understanding of corrosion processes to consider variations in the humidity of the storage environment and the role of the salts that may deposit on container surfaces.

The experimental work will involve evaluating the development of corrosion pits and rust deposits on metal surfaces using arrays of droplets with different salt chemistries, and examining pits with optical and electron microscopy, and characterising rust deposits with optical and Raman spectroscopy. The findings will be used to provide inputs to a corrosion prediction model, and will be underpinned by electrochemical measurements.
The position would suit a candidate with a good undergraduate degree (equivalent to a UK 2.1 or above) in Materials, Chemistry, or Chemical Engineering, with a good background in chemistry. It will provide a particularly valuable training for candidates interested in a career related to the nuclear waste industry.