Effects of the Addition of Different Types of Fillers on the Properties of BaO–ZnO–B₂O₃–SiO₂ Glass Composites for Application to Barrier Ribs of Plasma Display Panels

Abstract

MgO, and cordierite) were added to BaO-ZnO-B 2 O 3 -SiO 2 (BZBS) glass (5-20 wt%), and the resultant dielectric constant, coefficient of thermal expansion (CTE), and optical reflectance were investigated for the application of the composites to the barrier ribs in plasma display panels. All the investigated fillers were partially dissolved into the glass at the fabrication temperature (5751C), and the residual fillers were aligned along the boundaries of sintered glass frits. By considering all aspects of the properties, the addition of TiO 2 fillers of about 10 wt% to BZBS glass was the most desirable of the types of fillers investigated. The addition of TiO 2 filler (10 wt%) yielded 61% in optical reflectance, 8.3 Â 10 À6 K -1 in coefficient of thermal expansion, and 15.5 in dielectric constant, which were properties comparable with the currently used Pb-based barrier ribs. J ournal

Spectroscopic, Dielectric and Optical Properties of 60ZnO-30B2O3-10SiO2 Glass-Al2O3 Composites

“…Saini et al 16 investigated the structure property relation in lead borate and borosilicate glass doped with aluminum oxide. They observed a systematic decrease in glass density with alumina content in these glasses and concluded that this could be either due to a decrease in 6 Al content alone or due to the decrease of 4 B and 6 Al units with alumina doping. The same explanation is valid for the decrease in density at higher alumina content in the present study.…”

“…5). The role of fillers in the modification of the dielectric constant of the composites is dependent on their form in the glass 6 . As the dielectric constant of Al 2 O 3 in both crystalline (8.8–10.1) and dissolved (9.2) form are nearly the same, the dielectric constant of the composite is not affected by the amount of filler dissolved in the glass.…”

“…It is necessary to study the effect of ceramic fillers on lead‐free glasses when they replace lead‐based glasses. The effect of SiO 2 on the thermal and dielectric properties of BaO–ZnO–B 2 O 3 has been studied by Kim et al 5 Various types of crystalline ceramic fillers were added to BaO–ZnO–B 2 O 3 –SiO 2 glass and the resultant dielectric constant, coefficient of thermal expansion and optical reflectance were investigated 6 . Shin et al 7 investigated the improvement of optical reflectance of the same glass by incorporating various fillers and explained it on the basis of scattering of light by the increased submicron portion of the partially dissolved residual fillers.…”

Low Temperature Cofired Ceramics

“…Addition of 5 wt% B 2 O 3 glass increased " r to 10.5 and lowered the quality factor. Kim et al [43] studied the effect of addition of different types of fillers (TiO 2 , ZrO 2 , Al 2 O 3 , MgO, and cordierite) to BaO-ZnO-B 2 O 3 -SiO 2 [BZBS] (10:40:40:10) glass on CTE, optical reflectance and relative permittivity. All the fillers partially dissolved into the glass at 575°C.…”

Giant Dielectric Constant and Mechanical, Heat Conducting and Structural Properties of Dental Composites by Adding Ca Ions

“…For this reason, oxide materials such as SiO 2 , ZrO 2 , TiO 2 , Al 2 O 3 and B 2 O 3 which can improve the mechanical strength, thermal conductivity or structural stability of the system are doped, added or substituted in the dental composites [22][23][24]. Generally, the doping of the elements or compounds in the composites are chosen to be between 5% to 30% ratio since the excess content in the main matrix causes the formation of defects which the mechanical and thermal properties exhibit worse behavior when compared by the pure materials [25][26][27][28].…”