The Influence of Sb ₂ O ₃ Addition on the Properties of Low‐melting ZnO–P ₂ O ₅ Glasses

Abstract

The influence of 0–16 mol% Sb 2 O 3 substitution for P 2 O 5 on the properties of ZnO–P 2 O 5 glasses has been investigated. It was shown that Sb 2 O 3 could participate in the glass network and thermal stability of the glasses decreased with increasing Sb 2 O 3 content. Glass transition temperature T g , softening temperature T s , and water durability all decreased firstly (up to 6 mol% Sb 2 O 3 added) and then increased. Substitution of 12 mol% Sb 2 O 3 led to a 16°C decrease in T g and 30°C decrease in T s , and weight loss of the glass was only 0.42 mg/cm 2 , which is ∼11 times lower than that of the glass without Sb 2 O 3 after immersion in deionized water at 90°C for 1 day. The glass containing 12 mol% Sb 2 O 3 might be a substitute for Pb‐based glasses in some applications.