Abstract
The glass substrate of the PDP devices plays an important role to seal and prevent the major parts in PDP and also to transmit image. The PDP development process which has repeatedly heat-treatment at temperature range 450~600oC requires that the glass substrate has high stability without deformation after heat-treatment and similar coefficient of thermal expansion(CTE) with electrodes. However the commercial glass substrate contains high alkali content, which would cause deformation of the glass substrate or chemical reaction with other parts in PDP processing through the elution of alkali elements. In this study, the low alkali containing glass substrates were prepared based on Alkali-Alumino-Borosilicate glass system; SiO2-B2O3-ZrO2-Al2O3-R2O(Na2O+K2O)-RO(MgO+CaO+SrO+BaO)-ZnO. Then, their thermal and physical properties were characterized by using DTA, TMA, Rotation Cylinder Viscometer, hardness, strength and UV- Visible transmittance.
