In barium-aluminophosphate glasses containing two transition elements vanadium and iron ions are oxidised by manganese, iron ions by vanadium. For low and intermediate concentrations of transition metal ions the redox equilibrium shift is complete during cooling from the melting temperatures but for high concentrations it remains mostly incomplete.
Origin
Technische Universitat Berlin
Journal Title
Glastech Ber 1987 60 10 329-332
Sector
Special Glass
Class
S 35