Caesium borosilicate glasses with varying amounts of CaO were prepared and their structural aspects investigated using Fourier transform infrared (FTIR) spectroscopy and 11B magic angle spinning-nuclear magnetic resonance (MAS-NMR) before and after leaching. The chemical durability of the glasses improves significantly as CaO is increased at the expense of B2O3 content in the glass. Based on the chemical analysis of leachate and structural information obtained at the various stages of leaching, the relative stability towards hydrolytic attach of the different structural groups int he empirical model structure has been used to explain observed leaching behaviour.
Origin
Bhabha Atomic Research Centre, Mumbai, India
Journal Title
Phys Chem Glasses 54 2 2013 95-100
Sector
Special Glass
Class
S 3994