Mechanical properties of nuclear waste glasses

The effects of γ-radiation on model vitreous wasteforms intended for the disposal of intermediate and high level radioactive wastes in the United Kingdom

“…4 were derived from the standard deviation of the 30-50 results obtained for each sample. control glass samples (0 MGy) are in good agreement with previous research [28] in which values of 0.81-1.06 Nm À3/2 were reported. Within the estimated precision of the measurements, the c-irradiated glass samples presented no significant variation in fracture toughness when compared with the results determined from the control samples.…”

“…4 shows the hardness values as determined from microindentation of the glass surfaces. The hardness values for the control samples were in good agreement with results from previous research which reported values of 5.9-7.1 MPa for similar compositions [28]. The hardness values determined for the c-irradiated glass samples showed no significant variation from the values obtained for the control samples (0 MGy) within the estimated precision of the measurements.…”

“…Micro-indentation experiments were performed based upon the work of Connelly et al [28] using a Mitutoyo HM hardness testing machine. Experiments were performed on sample surface polished and finished with 0.25 lm diamond paste.…”

The Effect of γ-radiation on Mechanical Properties of Model UK Nuclear Waste Glasses

“…Both the measured Young's modulus and shear modulus of the control sample are in agreement with the range of values (78 -81 GPa and 31 -32 GPa, respectively) reported for similar glass compositions in previous research [12,13]. The measured moduli of the -irradiated specimens when compared with the un-irradiated control specimens show no significant change, within the precision of the measurements.…”

Using Vitrification for Sewage Sludge Combustion Ash Disposal

“…The final form of the vitrified waste takes a form of blocks in the shape of a vessel in which cooling takes place. Vitrified radioactive waste is characterized by high resistance to mechanical damage, low chemical reactivity, and minimal release of harmful substances into the environment [67].…”