Low activation steels are promising candidates for future fission and fusion reactors but lack the high temperature stability required for long-term use. One way of reinforcing these materials is to introduce nano-scale oxide inclusions which block dislocation glide. Andrew is investigating the chemical influence of alloy composition on the irradiation stability of model alloys produced in collaboration with the Indira Gandhi Centre for Atomic Research in India. Andrew is using atom probe tomography to study the spatial distribution, character and irradiation response of the yttrium-titanium rich oxides in these steels to further the fundamental understanding of these types of alloys.
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