Energy-storage performance of PbO-B2O3-SiO2 added (Pb0.92Ba0.05La0.02)(Zr0.68Sn0.27Ti0.05)O3 antiferroelectric ceramics prepared by microwave sintering method

In this work, (Pb0.92Ba0.05La0.02)(Zr0.68Sn0.27Ti0.05)O-3 (PBLZST) antiferroelectric (AFE) ceramics with the addition of PbO-B2O3-SiO2 raw glass powder as sintering aid were prepared via the microwave sintering method. The effects of glass content on the electrical properties and energy-storage performance of the ceramics were investigated in detail. With the glass content increasing, dielectric constant of the ceramics gradually decreased, while the breakdown strength increased. A maximum recoverable energy-storage density was about 2.3 J/cm(3) and the corresponding efficiency was about 76.8 % to be achieved in the ceramics with 3-wt% glass at room temperature. The energy density of the PBLZST AFE ceramic with 3-wt% glass is 1.3 times as that (1.8 J/cm(3)) of the pure specimens. These results indicated that the energy-storage performance of AFE ceramics could be improved by adding proper glass and selecting novel sintering method.