| Autor: |
Ihyadn, A., Merselmiz, S., Mezzane, D., Bih, L., Lahmar, A., Alimoussa, A., Amjoud, M., Luk’yanchuk, Igor A., El Marssi, M. |
| Zdroj: |
Journal of Materials Science: Materials in Electronics; Apr2023, Vol. 34 Issue 12, p1-13, 13p |
| Abstrakt: |
Lead-free Ba0.85Ca0.15Zr0.10Ti0.90O3 (BCZT) ceramic with different BaO–Na2O–Nb2O5–WO3–P2O5 (BNNWP) glass contents, 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 modified 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 135 kV/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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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