Effect of SiO{sub}2 Addition to BaO-ZnO-B{sub}2O{sub}3 Glass on Dielectric and Thermal Properties for Application to Barrier Ribs of Plasma Display Panels

摘要

The effect of SiO{sub}2 addition to barium zinc borate (BaO-ZnO-B{sub}2O{sub}3, BZB) glass on dielectric and thermal expansion properties was investigated. When SiO{sub}2 was added to the glass batch to form a SiO{sub}2-BaO-ZnO-B{sub}2O{sub}3 (SBZB) glass, the dielectric constant decreased significantly from 15.5 to 9.9. When SiO{sub}2 (quartz) was further added to the SBZB in the form of filler particles to yield ceramic filler-reinforced SBZB microcomposites, the dielectric constant was further decreased. The coefficient of thermal expansion (CTE) of SBZB was slightly lower than the allowable range, while the filler addition to SBZB correspondingly increased CTE to the allowable range. Thus, the addition of SiO{sub}2 to BZB glass to form SBZB glass and further addition to SBZB in the form of ceramic filler were shown to be amenable ways to tailor the dielectric constant as well as CTE of the barrier rib glass for the PDF application.