2024/05/21 by Abderrahim Ihyadn, Soukaina Merselmiz, Ihyadn, A. +15
Engineering · Materials Science · #Applied Physics (physics.app-ph) #FOS: Physical sciences #Ferroelectric and Piezoelectric Materials #Glass properties and applications #Materials Science (cond-mat.mtrl-sci) #Microwave Dielectric Ceramics Synthesis
paper · pdf · doi:10.48550/arxiv.2405.13207
openalex publication_date 2024/05/21 · openalex created_date 2024/05/25 · openalex updated_date 2026/07/28
Lead-free Ba0.85Ca0.15Zr0.10Ti0.90O3 (BCZT) ceramics with different BaO-Na2O-Nb2O5-WO3-P2O5 (BNNWP) glass content, forming (1-x)BCZT-xBNNWP lead-free ceramics (abbreviated as BCZTx; x=0, 2, 4, 6, and 8wt%) were synthesized using the conventional solid-state processing route. The XRD investigation shows the coexistence of tetragonal and orthorhombic phases in BCZT pure. Likewise, only the tetragonal phase was detected in BCZTx (x = 2-8 wt%) ceramics. The SEM findings indicate that the average grain size decreases as the amount of BNNWP glass additives increases. In addition, BCZT ceramics Amodified with glass additions showed narrower hysteresis loops and a large electric field. The BCZT4 showed the highest recovered energy density of 0.52 J/cm3 at 135kV/cm with an energy storage efficiency of 62.4%, which is increased by 6.6 compared to BCZT0 (0.075 J/cm3). The energy density was also calculated using the Landau-Ginzburg-Devonshire (LGD) theory