The interaction between two variable-valence elements (As+Fe & As + Cr) simultaneously present in glasses of the four-component system K2O-B2O3-SiO3-SiO2-Al2O3 is investigated. It is demonstrated that as the bass basicity increases, the element to the left of the redox series passes to a higher valence state. Recommendations are issued for correcting concentrations of variable-valence elements for the purpose of optimising the tint/shade in tinted and clear glasses.
Origin
Russian Academy Science
Journal Title
Glass & Ceramics 61 1-2 2004
Sector
Special Glass
Class
S 3091