0.75 g of BaTiO3 and 5 vol% PTFE were homogeneously mixed in ethanol using a pestle and mortar until ethanol was evaporated. After drying completely, 0.15 g of Ba(OH)2·8H2O was added the mixture and homogeneously ground and mixed. The mixture was then cold sintered under a uniaxial pressure of 350 MPa at 225 °C for 2 h.