Professor Neil C Hyatt
Professor of Nuclear Materials Chemistry
Royal Academy of Engineering and Nuclear Decommissioning Authority Research Chair
Director, Immobilisation Science Laboratory
Co-Director, Nuclear FiRST Doctoral Training Centre
Department of Materials Science and Engineering
Sir Robert Hadfield Building
Mappin Street, Sheffield, S1 3JD
Telephone: +44 (0) 114 222 5470
Fax: +44 (0) 114 222 5943
Neil Hyatt was appointed as Lecturer in Materials Chemistry in October 2003 and promoted to Senior Lecturer in 2009, and Reader in 2011. He was appointed to the Royal Academy of Engineering and Nuclear Decommissioning Authority Research Chair in Radioactive Waste Management.
Previously, Neil held appointments as Senior Research Fellow in the BNFL Immobilisation Science laboratory in the Department of Materials Science and Engineering at The University of Sheffield (2002 - 2003), Senior Development Analyst at the London & Scandinavian Metallurgical Co. Ltd (2000 - 2002), and Postdoctoral Research Associate in the School of Chemistry at The University of Birmingham (1999 - 2000).
Neil was awarded his PhD. from The University of Birmingham in 2000, with a thesis entitled "A Study of Structure - Property Relations in Layered Copper Oxides". He graduated from the same University in 1996 with a first class BSc (Hons) in Chemistry.
Immobilisation of nuclear waste materials.
Research is focussed on the design, processing and performance of glass and ceramic materials for the immobilisation of nuclear wastes. Present research themes include the immobilisation of surplus/waste plutonium in tailored ceramic hosts, structure-property relations in nuclear waste glasses, immobilisation of legacy intermediate level wastes, and materials performance in disposal environments. We work closely with industrial organisations, including the National Nuclear :aboratory, NDA, Magnox South Sites and the Atomic Weapons Establishment, to address issues of basic science and practical engineering.
Radiation damage in nuclear materials.
Research is focused on the impact of radiation damage on rate and mechanism of radionuclide release from ceramic wasteforms for actinide disposal. Our approach uses both in-active analogue studies combining ex-situ ion implantation with surface characterisation techniques, and study of Pu-238 and Pu-239 doped materials at the Institute for Trans-Uranium Elements.
Structure-property relations in mixed metal oxides.
Research is focused on the study of structure-property relationships in perovskite related oxides showing a range of useful physical properties such as high temperature superconductivity, colossal magnetoresistance and anisotropic magnetic exchange. Recent work has investigated structure-property relationships in layered perovskite ferroelectrric oxides and oxide-fluorides.
Nuclear FiRST Doctoral Training Centre.
This new national training centre for doctoral scientists and engineers in nuclear fission science and technology was established with a £7.1M investment from EPSRC, awarded to Prof. Francis Livens (Director, The University of Manchester) and Dr Neil Hyatt (Co-Director, The University of Sheffield). Nuclear FiRST aims to underpin UK Energy and Defence strategy by addressing a growing doctoral skills gap in nuclear fission science and engineering. We offer an exciting and interdisciplinary approach to postgraduate research training, combining a Masters level foundation year with a three year Doctoral level thesis project. This is supplemented by training in professional skills and project placements in industry or research institutes in the UK and overseas. Learn more [link: http://www.shef.ac.uk/materials/prospective_pg/nuclearfirst]
- Disposition of waste and surplus UK plutonium.
- Understanding HLW glass dissolution in the repository near-field.
- Vitrification of wet ILW from UK reactor sites.
- Structure-property relationships in functional layered perovskites.
Professional activities and recognition
- Co-Director of Doctoral Training Centre for Nuclear Fission Research, Science & Technology.
- Chair of International Scientific Advisory Committee, for the MRS Symposium on Scientific Basis for Nuclear Waste Management.
- Member of Advisory Group for UK Centre for Materials Education.
- Member of Steering Group and Work Package Leader for EPSRC DIAMOND Consortium.
- Member of Scientific Advisory Panel to ESRC “Waste of the World” project.
- Organiser of 32nd MRS Symposium on Scientific Basis for Nuclear Waste Management, 2008.
- Five recent invited talks, including CIMTEC 2006 and ECA 2007.
- Best paper award in Nuclear and Environmental Technology Division of 106th Annual Conference of the American Ceramic Society (2004).
- A.J. Connelly, R.J. Hand, P.A. Bingham, and N.C. Hyatt, 'Mechanical properties of nuclear waste glasses', Journal of Nuclear Materials, 408, 188-193, (2011).
- A.J. Connelly, N.C. Hyatt, K.P. Travis, R.J. Hand, E.R. Maddrell, R.J. Short, “The structural role of Zr within alkali borosilicate glasses for nuclear waste immobilisation”, Journal of Non-Crystalline Solids, 357, 1647-1656, (2011).
- A.J. Connelly, K.P. Travis, R.J. Hand, N.C. Hyatt, and E.R. Maddrell, ‘Composition–Structure Relationships in Simplified Nuclear Waste Glasses: 2. The Effect of ZrO2 Additions’, Journal of the American Ceramic Society, 94, 78–85, (2011).
- A.J. Connelly, K.P. Travis, R.J. Hand, N.C. Hyatt, and E.R. Maddrell, ‘Composition–Structure Relationships in Simplified Nuclear Waste Glasses: 1. Mixed Alkali Borosilicate Glasses’, Journal of the American Ceramic Society, 94, 92–100, (2011).
- A.T. Giddings, M.C. Stennett, D.P. Reid, E.E. McCabe,C. Greaves, and N.C. Hyatt, 'Synthesis, structure and characterisation of the n =4 Aurivillius phase Bi5Ti3CrO15', Journal of Solid State Chemistry, 184, 252-263, (2011).
- A. Jenni and N.C. Hyatt, ‘Encapsulation of caesium-loaded Ionsiv in cement’, Cement and Concrete Research, 40, 1271-1277, (2010).
- D.P. Reid, M.C. Stennett, B. Ravel, J.C. Woicik, N. Peng, E.R. Maddrell, and N.C. Hyatt, ‘The structure of ion beam amorphised zirconolite studied by grazing angle X-ray absorption spectroscopy’, Nuclear Instruments and Methods in Physics Research B, 268, 1847-1852, (2010).
- P.A. Bingham PA, A.J. Connelly, R.J. Hand, N.C. Hyatt, P.A. Northrup, R.A. Mori, P. Glatzel, M. Kavcic M, M. Zitnik, K. Bucar, and R. Edge, ‘A multi-spectroscopic investigation of sulphur speciation in silicate glasses and slags’, Glass Technology – European Journal of Glass Science and Technology Part A, 51, 63-80, (2010).
- P.A. Bingham, A.J. Connelly, R.J. Hand, N.C. Hyatt, ‘Vitrification of legacy and intermediate level radioactive wastes: Opportunities and challenges’, Nuclear Future, 6, 250-254, (2010).
- P.A. Bingham PA, A.J. Connelly, R.J. Hand, N.C. Hyatt, P.A. Northrup, R.A. Mori, P. Glatzel, M. Kavcic, M. Zitnik, K. Bucar, and R. Edge, ‘Incorporation and speciation of sulphur in glasses for waste immobilisation’, Glass Technology – European Journal of Glass Science and Technology Part A, 50, 135-138, (2009).
Dr Martin Stennett (Ceramic wasteforms)
Dr Paul Bingham (Vitrification of intermediate level wastes)
Dr Claire Utton (Near field interactions of ILW glasses with NRVB backfill)
Visiting research fellow:
Dr Ewan Maddrell (Nexia Solutions Ltd)
Adrian Covill (Performance of Geomelt and phosphate wasteforms)
Daniel Reid (Sructure-property relations in zirconolite and pyrochlore
Andrew Giddings (Structure-property relations in ferroelectric perovskites)
Nate Cassingham (Dissolution mechanisms of HLW glass)
Jonathon Squire (Process development for plutonium wasteforms)
Robert Shaw (Dust scrubber chemistry at the Sellafield Waste Vitrification
Dan Crean (Remediation of depleted uranium contaminated land from munitions
Kris James (Reactor concept modelling for civil nuclear marine applications)
Paul Heath (Immobilisation technologies for advanced nuclear fuels)
Matt Hand (Next generation materials for thermal barrier coatings)