The effects of Li2O-ZnO-B2O3 (LZB) glass additions on densification and dielectric properties of Ba4(Nd0.85Bio.14)9.33Ti18O54 (BNBT) have been investigated. At a given ratio of ZnO/B2O3, the glass softening point decreases, but the thermal expansion coefficient and dielectric constant increase with increasing Li2O content in the LZB glass. With 10 vol% LZB glass, the densification temperature reduces greatly from 1300 deg C for pure BNBT to 875-900 deg C for BNBT + LZB dielectric, and the densification enhancement becomes more significant with increasing Li2O content in the LZB glass. The result is attributed to a chemical reaction taking place at the interface of LZB/BNBT during firing, which becomes less extensive with increasing Li2O content in the LZB glass.
