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Modelling the sulfate capacity of simulated radioactive waste borosilicate glasses

“…For other oxide glass systems, P 2 O 5 -Al 2 O 3 -Na 2 O-Fe 2 O 3 glasses exhibiting high sulfate capacities have been used as vitrification matrices at the Russian Mayak facility [2]. Some phosphate glasses can accommodate sulfate contents of the order of several percent [2,4].…”

“…Glass composition plays a key role in determining sulfate capacity and solubility [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] and the relative concentrations of O 0 , O -and O 2-(bridging oxygen, non-bridging oxygen and free oxygen, respectively) are major factors in this [4,6,10,[18][19][20][21]. A number of research papers and reviews have been published concerning prediction or modelling of the capacity and solubility of sulfate and other anionic species in oxide glasses (see, for example, [4,6,10,19,20] and references therein).…”

Effect of particle size on kinetics crystallization of an iron-rich glass

“…Vitrification as method of waste disposal was firstly applied in the 1970s to the immobilization of liquid high-level radioactive waste (HLW) [6][7]. Since then, there has been a considerable research in this field, which concludes that vitrification process leads to a stable glass that is far superior in terms of durability, strength, and leach resistance compared to other wastes stabilisation technologies [8][9][10][11][12].…”

Graphite immobilisation in iron phosphate glass composite materials produced by microwave and conventional sintering routes

“…For example, borosilicate glasses are used in France and the UK for the immobilisation of HLW [15]. A number of borosilicate glasses for the immobilisation of HLW have been developed and information regarding the processing characteristics, corrosion behaviour, mechanical performance, thermal stability as well as radiation stability is widely available [16,17].…”