Glass - Back to the Future!



Presenting Author:
Bill Lee
<w.e.lee@imperial.ac.uk>

article posted 22 Feb 2016


Prof. WE (Bill) Lee, FREng
is Director of the Centre for Nuclear Engineering and of the Nuclear Energy Centre for Doctoral Training at Imperial College London. He has supervised 59 students to successful completion of their PhDs and published nearly 400 papers and 4 books on ceramics including An Introduction to Nuclear Waste Immobilisation with Michael Ojovan (Elsevier, 2nd edition 2014). He is a member of the UK?s Nuclear Innovation and Research Advisory Board (NIRAB), the Royal Academy of Engineering International Activities Committee, and was previously Deputy Chair of the Government advisory Committee on Radioactive Waste Management (CoRWM) from 2007-2013. He has acted as special advisor nuclear to the House of Lords Science and Technology Committee (2013) and was from 2006 to 2010 Head of the Department of Materials at Imperial College London. He is currently President-elect of the American Ceramic Society.






Glass Composite Materials

Bill Lee

Dept. of Materials, Imperial College, London, SW7 2AZ.




Many materials contain varying amounts of glass in their microstructures arising from the processing route used. This presentation categorises Glass Composite Materials (GCMs) into 3 types.





Firstly, classical glass ceramics made as a glass but using a separate or included heat treatment step to form crystals.




Secondly, materials where the glass arises from reactions leading to liquid on processing such as Liquid Phase Sintered ceramics, vitrified silicate whitewares including porcelains and bone china, and Cold Crucible Melted radioactive wasteforms.



Thirdly, GCMs made by encapsulating refractory ceramics in liquid which cools to glass are considered. The importance of processing and its impact on microstructures and properties is highlighted.