Effects of TiO₂–SiO₂ fillers on thermal and dielectric properties of bismuth glass microcomposite dielectrics for plasma display panel

摘要

The combined effects of TiO₂ and SiO₂ fillers on thermal and dielectric properties of new lead-free environmental friendly zinc bismuth borate, ZnO–Bi₂O₃–B₂O₃ (ZBIB) glass microcomposite dielectrics have been investigated from the viewpoint of application as rear glass dielectric layer of plasma display panels (PDPs). The interaction of fillers with glass occurred during firing has also been explored by XRD, SEM and FTIR spectroscopic analyses. All the properties are found to be regulated by the covalent character (a fundamental property) of resultant microcomposite dielectrics. In this work, the co-addition of TiO₂–SiO₂ filler to ZBIB glass is found to be more effective to adjust the required properties to employ with PD200 glass substrate in PDP technology.