KAGAKU KOGAKU RONBUNSHU, Vol.34, No.2, 287-290, 2008
Application of Lead-Free Vanadium Sealing Glasses to the Flat Fluorescence Lump
Lead-free glasses with a low melting temperature (lower than 600 degrees C) and good chemical durability are desirable for the sealing process in the ceramic and electronic industries. In our previous studies, the quaternary systems (41.8 mol% V(2)O(5)-3.1 mol% ZnO-17.6 mol% BaO-37.5 mol% TeO(2) or 53.0 mol% V(2)O(5)-4.0 mol% ZnO-22.4 mol% BaO-20.6 mol% P(2)O(5)) were confirmed to have excellent sealing and thermal properties. In this study, we carried out a thermal-shock test, a pressure-resistance test, and a continuous lighting test for evaluating the practical application. These lead-free glasses exhibited excellent performance and properties as a substitute for the commercial lead sealing glass.