Dr Kathy Christofidou
PhD, MEng, MBA
Department of Materials Science and Engineering
Lecturer in Metallurgy
Full contact details
Department of Materials Science and Engineering
Sir Robert Hadfield Building
Mappin Street
Sheffield
S1 3JD
- Profile
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Kathy (Katerina) Christofidou joined the department in 2019 as a Lecturer in Metallurgy.
Prior to this, she held roles at the University of Cambridge, as part of the Rolls-Royce University Technology Centre, and the University of Manchester, where she also worked in close collaboration with the Henry Royce Institute.
She holds a PhD in Metallurgy from the University of Cambridge and an MEng in Aerospace Materials Engineering from Imperial College London.
- Research interests
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Kathy's research focuses on multiple facets of high-temperature physical metallurgy, alloy design and manufacturing.
As part of her collaboration with Rolls-Royce PLC, she has developed new polycrystalline Ni-based superalloys for turbine disc applications, as well as exploring strategies for the design of high-temperature materials amenable to laser-based additive layer manufacturing.
In addition, a major area of her research interests is that of high entropy alloys and the possibilities that these materials offer for expanding our understanding of physical metallurgy beyond a single base element and the associated thermodynamic principles governing this behaviour.
- Publications
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Journal articles
- Bending bad—testing caramel wafer bars (#TestATunnocks). Physics Education, 56(5), 055002-055002.
- The influence of Fe variations on the phase stability of CrMnFe
x CoNi alloys following long-duration exposures at intermediate temperatures. Intermetallics, 131.
- On the continuous and discontinuous precipitation of the L12 phase in Cu-Ni-Al alloys. Materialia.
- The effect of heat treatment on the oxidation resistance of cobalt-based superalloys. Metals, 10(2). View this article in WRRO
- Elucidating the microstructural development of refractory metal high entropy superalloys via the Ti–Ta–Zr constituent system. Journal of Alloys and Compounds. View this article in WRRO
- Effect of Co on the phase stability of CrMnFeCoxNi high entropy alloys following long-duration exposures at intermediate temperatures. Intermetallics, 114. View this article in WRRO
- On the design and feasibility of tantalum-base superalloys. Journal of Alloys and Compounds, 804, 314-321. View this article in WRRO
- The effect of temperature and mo content on the lattice misfit of model ni-based superalloys. Metals, 9(6). View this article in WRRO
- On the prediction and the formation of the sigma phase in CrMnCoFeNix high entropy alloys. Journal of Alloys and Compounds, 770, 285-293. View this article in WRRO
Conference proceedings papers
- Developing alloy compositions for future high temperature disk rotors. Superalloys 2020 : Proceedings of the 14th International Symposium on Superalloys (pp 19-30). Seven Springs, Pennsylvania, USA, 12 September 2021 - 16 September 2021.
- Microstructural control and optimization of Haynes 282 manufactured through laser powder bed fusion. Superalloys 2020 : Proceedings of the 14th International Symposium on Superalloys (pp 1014-1023) View this article in WRRO
- Bending bad—testing caramel wafer bars (#TestATunnocks). Physics Education, 56(5), 055002-055002.
- Professional activities
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- Member of the IoM3 Materials Chemistry Committee
- Member of the TMS High Temperature Alloys Committee
- Recipient of funding allocation from the Women in Engineering Visitor Funding Scheme at the University of New South Wales, Sydney, Australia
- 2019 Materials travel award