In this paper, TiO2 is added to CaO-SrO-B2O3-SiO2 sealing system to tailor the sealing properties of glass-ceramic seals. The coefficient of thermal expansion (CTE) of quenched glasses and glass-ceramics (held at 750 degrees C for 100 h) does not change significantly with the addition of TiO2; whereas, the glass stability (Delta T-xg = T-x - T-g) decreases systematically with increasing TiO2. The addition of TiO2 accelerates the crystallization of sealing glasses. The formation of Sr-containing phase, e.g., Sr(TiO3), contributes to the improved chemical compatibility as well as the increase in conductivity of sealing glasses (e.g., from 7.9 x 10(-8) S cm(-1) to 6.9 x 10(-5) S cm(-1) at 800 degrees C). In addition, the good bonding is observed at the interface between Cr-containing interconnect (430SS) and glasses containing 4-8 mole % TiO2, held at 750 degrees C for 100 h. (C) 2013 Elsevier B.V. All rights reserved.