Imperial College London
Alternate

Professor WE (Bill) Lee FREng

Faculty of Engineering, Institute for Security Science & Technology

Distinguished Research Fellow
 
 
 
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Contact

 

w.e.lee Website

 
 
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Assistant

 

Miss Eva Konstantara +44 (0)20 7594 8864

 
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Location

 

Abdus Salam LibrarySouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

494 results found

Ojovan MI, Lee WE, Hand RJ, 2005, Role of ion exchange in performance of nuclear waste immobilising glasses, Proceedings - 10th International Conference on Environmental Remediation and Radioactive Waste Management, ICEM'05, Vol: 2005, Pages: 357-364

The role of diffusion-controlled ion exchange in corrosion of nuclear waste borosilicate glasses has been examined. Ion exchange is the principal radipnuclide release mechanism in conditions when glass network hydrolysis is suppressed, such as in silica-saturated solutions when it persists over geologic time scales. In dilute aqueous solutions ion exchange controls the initial cation release and can dominate for tens and many hundreds of years if temperatures are low. Ion exchange rates are shown to have square root time dependences, Arrhenius-controlled temperature and exponential pH dependences. Numerical estimates of radionuclide release inventory are given for typical nuclear waste radionuclides. Copyright © 2005 by ASME.

Journal article

Juoi JM, Ojovan MI, Lee WE, 2005, Development of glass-composite materials for radioactive waste immobilisation, Proceedings - 10th International Conference on Environmental Remediation and Radioactive Waste Management, ICEM'05, Vol: 2005, Pages: 341-348

This paper presents an overview of glass composite materials (GCM) development in radioactive waste immobilisation. The different types of GCM and different production methods are discussed including the composition of glass used as well as the immobilised radioactive waste. Preliminary results are also presented on development of low pressure, low temperature sintered glass composites for immobilising spent clinoptilolite arising from water treatment facilities and radionuclide partitioning. Copyright © 2005 by ASME.

Journal article

Pankov AS, Ojovan MI, Lee WE, Scales CRet al., 2005, ION-exchange and diffusion parameters of simulant British (Magnox, 75/25 Blended waste) and Russian (K-26) glasses at 40-60°C, Proceedings - 10th International Conference on Environmental Remediation and Radioactive Waste Management, ICEM'05, Vol: 2005, Pages: 637-643

Simulant compositions of two British (Magnox and 75/25 Blended) nuclear waste glasses and of Russian K-26 radioactive glass were synthesized and studied to eventually evaluate the role of intrinsic gamma-irradiation on radionuclide release rates. The diffusion coefficient and activation energies of the main glass constituents' release were obtained from a series of leaching experiments over the temperature interval 40° to 60°C at neutral pH and low concentrations of dissolved species. Under these conditions ion-exchange is the main corrosion mechanism of each glass. Normalized release rates of Na, Li, Ca, B and Si were determined after 3, 15 and 27 days test duration. The cation leaching rates for K-26 glass are about an order of magnitude higher than those for both Magnox (MW) and 75/25 glasses. The normalized release rates of cations from K-26 glass at 40° after 27 days are in the range of (3.2-5.7)·10-1 g·m-2d-1 whilst for MW and 75/25 glasses these values are (1.8-3.4)·10-2 and (5.1-6.2)·10-2 g·m-2d-1, respectively. At 60°C the leaching rates increase up to (4.8-7.6) ·10-1 for K-26 glass and (5.0-8.2)·10-2 for MW glass. In most glasses sodium has a normalized release rate higher than those of the network-forming elements. SEM observation reveals an inhomogeneous microstructure in all glasses examined. MW and 75/25 glasses are characterized by segregation of two glassy phases. K-26 glass contains crystalline inclusions although only in small amounts. Surface changes originating from interaction with water have been studied using SEM techniques. K-26 and MW glasses e.g. show formation of altered (secondary) surface layers. Copyright © 2005 by ASME.

Journal article

Ojovan MI, Lee WE, 2005, An Introduction to Nuclear Waste Immobilisation, Publisher: Elsevier, ISBN: 9780080455716

The book thoroughly covers all issues surrounding nuclear waste: from where to locate nuclear waste in the environment, through nuclear waste generation and sources, treatment schemes and technologies, immobilisation technologies and waste ...

Book

McConville CJ, Lee WE, 2005, Microstructural development on firing illite and smectite clays compared with that in kaolinite, JOURNAL OF THE AMERICAN CERAMIC SOCIETY, Vol: 88, Pages: 2267-2276, ISSN: 0002-7820

Journal article

Bajwa S, Rainforth WM, Lee WE, 2005, Sliding wear behaviour of SiC-Al<sub>2</sub>O<sub>3</sub> nanocomposites, 15th International Conference on Wear of Materials, Publisher: ELSEVIER SCIENCE SA, Pages: 553-561, ISSN: 0043-1648

Conference paper

Ecclestone LJ, Reaney IM, Lee WE, 2005, Correlation of microstructures with electrical performance of Ag-based metal electrode-PZT electroceramic interfaces, JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, Vol: 25, Pages: 1647-1655, ISSN: 0955-2219

Journal article

Coleman NJ, Lee WE, Slipper IJ, 2005, Interactions of aqueous Cu<SUP>2+</SUP>, Zn<SUP>2+</SUP> and Pb<SUP>2+</SUP> ions with crushed concrete fines, JOURNAL OF HAZARDOUS MATERIALS, Vol: 121, Pages: 203-213, ISSN: 0304-3894

Journal article

Tarvornpanich T, Souza GP, Lee WE, 2005, Microstructural evolution on firing soda-lime-silica glass fluxed whitewares, JOURNAL OF THE AMERICAN CERAMIC SOCIETY, Vol: 88, Pages: 1302-1308, ISSN: 0002-7820

Journal article

Ojovan MI, Hand RJ, Ojovan NV, Lee WEet al., 2005, Corrosion of alkali-boro silicate waste glass K-26 in non-saturated conditions, JOURNAL OF NUCLEAR MATERIALS, Vol: 340, Pages: 12-24, ISSN: 0022-3115

Journal article

Hand RJ, Short RJ, Morgan S, Hyatt NC, Möbus G, Lee WEet al., 2005, Molybdenum in glasses containing vitrified nuclear waste, 7th European-Society-of-Glass Conference on Glass Science and Technology, Publisher: SOC GLASS TECHNOLOGY, Pages: 121-124, ISSN: 0017-1050

Conference paper

Zhang SW, Hashimoto S, Lee WE, 2005, Hydration of aluminum powder in magnesia-containing water, JOURNAL OF THE AMERICAN CERAMIC SOCIETY, Vol: 88, Pages: 1057-1059, ISSN: 0002-7820

Journal article

Zhang S, Lee WE, Zhu B, Li Net al., 2005, Improving hydration resistance of Al powder for carbon containing castables using inorganic-organic hybrid coatings, ADVANCES IN APPLIED CERAMICS, Vol: 104, Pages: 79-82, ISSN: 1743-6753

Journal article

Ojovan MI, Lee WE, 2005, Fragility of oxide melts as a thermodynamic parameter, PHYSICS AND CHEMISTRY OF GLASSES, Vol: 46, Pages: 7-11, ISSN: 0031-9090

Journal article

Hyatt NC, Short RJ, Hand RJ, Lee WE, Livens F, Charnock JM, Bilsborrow RLet al., 2005, The structural chemistry of molybdenum in model high level nuclear waste glasses, investigated by mo k-edge x-ray absorption spectroscopy, Environmental issues and waste management technologies in the ceramic and nuclear industries X: proceedings of the 106th annual meeting of the American Ceramic Society, Indianapolis, Indiana, USA, 2004 10th Indianapolis, Ind 2004; Apr, Publisher: Westerville; American Ceramic Society; 2005, Pages: 179-190

Conference paper

Lee WE, Zhang S, 2005, Refractories: high-temperature nanobonded composites, Unified International Technical Conference on Refractories, UNITECR '05, Orlando, Florida, USA, Publisher: American Ceramic Society, Pages: 321-324

Conference paper

Lee WE, Zhang S, Li N, Zhu Bet al., 2005, Microstructural characterisation of in situ matrix phase formation in refractories, Unified International Technical Conference on Refractories, UNITECR '05, Orlando, Florida, USA, Publisher: American Ceramic Society, Pages: 326-329

Conference paper

Orozco M, Nose I, Lee W, Acosta AC, Fragoso M, Fernandez V, Salas N, Parel JMet al., 2005, Endocapsular hyperthermia probe to prevent posterior capsular opacification, 15th Conference on Ophthalmic Technologies, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, Pages: 252-259, ISSN: 0277-786X

Conference paper

Pankov AS, Ojovan M, Lee WE, Scales CRet al., 2005, Ion-exchange and diffusion parameters of simulant British (Magnox, 75/25 Blended Waste) and Russian (K-26) Glasses at 40-60oC (Article no.ICEM05-1130), 10th Intlernational Conference on Radioactive Waste Management and Environmental Remediation, (ICEM), Glasgow, UK 2005, Publisher: ASME, Pages: 7-7

Conference paper

Ojovan M, Lee WE, Milestone NB, Hyatt NC, Stennett MC, Setiadi A, Zhou Qet al., 2005, Novel wasteforms for HLW and ILW immobilisation, European Nuclear Congress (ENC 05), Versailles, France, 2005, Pages: 8-8

Conference paper

Ojovan MI, Lee WE, 2005, An introduction to nuclear waste immobilisation, Oxford, Publisher: Elsevier, ISBN: 9780080444628

Book

Lee WE, Zhang S, Bhattacharya G, Kemp TF, Smith MEet al., 2005, Mineralizing spinel formation with B2O3, Unified International Technical Conference on Refractories, UNITECR '05, Orlando, Florida, USA, Publisher: American Ceramic Society, Pages: 345-349

Conference paper

Zhang S, Jayaseelan DD, Lee WE, 2005, Molten salt synthesis of high melting complex oxide powders, Unified International Technical Conference on Refractories, UNITECR '05, Orlando, Florida, USA, Publisher: American Ceramic Society, Pages: 237-240

Conference paper

Zhang S, Lee WE, 2005, Development of carbon-containing castables, Unified International Technical Conference on Refractories (UNITECR '03), 19 - 22 October 2003, Kyoto, Japan, Publisher: American Ceramic Society, Pages: 543-545

Conference paper

Juoi JM, Ojovan MI, Lee WE, 2005, Development of glass-composite materials for radioactive waste immobilisation (Article no.ICEM05-1046), 10th Intlernational Conference on Radioactive Waste Management and Environmental Remediation, (ICEM), 4 - 8 September 2005, Glasgow, UK, Publisher: ASME, Pages: 1-2

Conference paper

Ojovan M, Lee WE, Hand RJ, 2005, Role of ion exchange in performance of nuclear waste immobilising glasses (Article no.1070), 10th Intlernational Conference on Radioactive Waste Management and Environmental Remediation, (ICEM), Glasgow, UK 2005, Publisher: ASME, Pages: 1-2

Conference paper

Lee WE, Zhang S, Wright G, 2005, Refractories and temperature measurement in the steel industry, Unified International Technical Conference on Refractories, UNITECR '05, Orlando, Florida, USA, Publisher: American Ceramic Society, Pages: 350-354

Conference paper

Ojovan MI, Lee WE, 2004, Alkali ion exchange in γ-irradiated glasses, JOURNAL OF NUCLEAR MATERIALS, Vol: 335, Pages: 425-432, ISSN: 0022-3115

Journal article

Lee WE, Zhang S, Karakus M, 2004, Refractories: Controlled microstructure composites for extreme environments, JOURNAL OF MATERIALS SCIENCE, Vol: 39, Pages: 6675-6685, ISSN: 0022-2461

Journal article

Ojovan MI, Lee WE, Sobolev IA, Dmitriev SA, Karlina K, Klimov VL, Petrov GA, Semenov CNet al., 2004, Thermochemical processing using powder metal fuels of radioactive and hazardous waste, PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING, Vol: 218, Pages: 261-269, ISSN: 0954-4089

Journal article

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