The effects of B2O3 doping on densification, ferroelectric, and piezoelectric properties of Ba(Zr0.07Ti0.93)O-3 (BZT) ceramics were investigated. The addition of B2O3 to the ceramics lowered the sintering temperature by similar to 200 degrees C as well as changed their microstructures. Higher B2O3 concentration caused a decrease in remanent polarization and coercive field, while the piezoelectric coefficient d(33) remained at a high value of 291 pC/N for the ceramic sample with 2 wt.% B2O3. The relationship between piezoelectric properties and ferroelectric constant was examined. (C) 2009 Elsevier B.V. All rights reserved.