Mechanical properties of nuclear waste glasses

CONNELLY, A.J., HAND, R.J., BINGHAM, Paul and HYATT, N.C. (2011). Mechanical properties of nuclear waste glasses. Journal of Nuclear Materials, 408 (2), 188-193.

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Link to published version:: 10.1016/j.jnucmat.2010.11.034


The mechanical properties of nuclearwasteglasses are important as they will determine the degree of cracking that may occur either on cooling or following a handling accident. Recent interest in the vitrification of intermediate level radioactive waste (ILW) as well as high level radioactive waste (HLW) has led to the development of new wasteglass compositions that have not previously been characterised. Therefore the mechanical properties, including Young’s modulus, Poisson’s ratio, hardness, indentation fracture toughness and brittleness of a series of glasses designed to safely incorporate wet ILW have been investigated. The results are presented and compared with the equivalent properties of an inactive simulant of the current UK HLW glass and other nuclearwasteglasses from the literature. The higher density glasses tend to have slightly lower hardness and indentation fracture toughness values and slightly higher brittleness values, however, it is shown that the variations in mechanical properties between these different glasses are limited, are well within the range of published values for nuclear waste glasses, and that the surveyed data for all radioactive waste glasses fall within relatively narrow range.

Item Type: Article
Research Institute, Centre or Group: Materials and Engineering Research Institute > Structural Materials and Integrity Research Centre > Centre for Corrosion Technology
Identification Number: 10.1016/j.jnucmat.2010.11.034
Depositing User: Hilary Ridgway
Date Deposited: 22 Aug 2012 09:33
Last Modified: 22 Aug 2012 09:33

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