CRYSTALLIZATION AND PROPERTIES OF A LOW-K GLASS COMPOSITE

The effect of gallium oxide on crystallization, thermal expansion and dielectric behaviors of a binary glass composite which contains a low-softening Pyrex borosilicate glass and a high-softening high silica glass has been studied. It is found that on sintering, cristobalite precipitates out of the initial amorphous binary glass mixture; however, the addition of gallium oxide prevents this. The above result is further supported by microstructural observation, thermal expansion and dielectric constant measurements.