CRYSTALLINE GLASS COMPOSITION AND ADHESIVE MATERIAL USING SAME

摘要

Provided is a crystalline glass composition which has high thermal expansion coefficient after a heat treatment, while exhibiting excellent fluidity during the heat treatment. The crystalline glass composition is not susceptible to volatilization of the glass component or decrease in airtightness or adhesion of a bonded portion even if exposed to high temperatures for a long period of time after the heat treatment. A crystalline glass composition which precipitates MgO crystals as the main crystals by a heat treatment and which is characterized by containing, as a glass composition, 0.1-30% by mole of La2O3 + Nb2O5 + Y2O3 + Ta2O5 + Yb2O3.