Structure and properties of Sb2O3-containing zinc borophosphate glasses

摘要: Abstract ZnO–B 2 O 3 –P 5 glasses formulated with Sb were investigated in the series 50ZnO–10B –40P  +  x (  = 0–70 mol%). With increasing content, values of glass transition temperature decrease from 492 °C down to 394 °C. The dissolution rate reveals a maximum for  = 15 mol% . Raman spectra content reflect depolymerisation phosphate chains. Antimony at low forms individual SbO pyramids manifested by broad vibrational band ∼520–690 cm −1 In higher units link into chains and clusters Sb–O–Sb bridges strong 380–520 cm 31 P MAS NMR only small changes PO 4 coordination high content. 11 B reveal steady transformation B(OP) 4− (OSb) units, accompanied BO