radioactive wastes (HLW) throughout the world. Most of the nations that have generated
HLW are immobilizing in either borosilicate glass or phosphate glass. One of the primary
reasons that glass has become the most widely used immobilization medium is the relative
simplicity of the vitrification process, eg melt waste plus glass-forming frit additives and cast.
A second reason that glass has become widely used for HLW is that the short-range order …