| 초록 |
The invention is directed to lead free (Pb-free) frits that can be used for plasma display screen devices and other sealed assemblies requiring the use of lead-free glass or glass-ceramic sealing materials. P2O5-SnO system 0.5SnO-(0.5-x)P2O5 -xB2O3 (x=0, 0.05, 0.1, 0.15, 0.2) glasses have been prepared for Pb-free low temperature glass frit. Structure and properties of the glasses with the composition 0.5SnO-(0.5-x)P2O5-xB2O3 were characterized by infrared spectra (IR), X-ray diffraction (XRD), differential thermal analysis (DTA), Thermo mechanical analysis (TMA) and weight loss after immersion test. Glass transition temperature (Tg) and chemical durability increased, and coefficient of thermal expansion (α) decrease with the substitution of B2O3 for P2O5 in the range of 0–20 mol%. |
