Sintering effect on electrical properties of ZnO-V2O5-MnO2-Nb2O5 ceramics

► ZnO-V2O5-based varistor ceramics for low sintering temperature (900 °C). ► ZnO-V2O5-MnO2-Nb2O5 (ZVMN) varistor ceramics exhibited good varistor properties, with high nonlinear coefficient (50) at 900 °C in sintering temperature. ► ZVMN varistor ceramics are a new basic composition for low sintering temperature.