METAL PHOSPHATE LOW-MELTING GLASSES PREPARED BY A NON-AQUEOUS ACID- BASE REACTION

摘要

The binary glass systems M~(II)O-P2O5 (with M = Zn, Sn) were prepared via a non-aqueous acid-base reaction using orthophosphoric acid and the relevant metal chloride as starting materials. We investigated their glass-forming regions, thermal, and structural properties with different compositions and different heat-treatment temperatures. Transparent glasses with high chemical durability and low softening temperatures ranging from 50°C to 250°C were obtained at low temperature process. The X-ray fluorescence measurements results showed that no chlorine remained in the glasses after heat-treatment, making the method suitable for obtaining durable and environmental-friendly low-melting glasses.