Abstract
A conventional solid-state reaction route was utilized for the fabrication of Ba0.55Sr0.45Ti1−xMnxO3 (x =.004,.006,.008,.01, and.015) ceramics. X-ray diffraction (XRD) diffractograms revealed pseudo-cubic structural symmetry with a single phase. The scanning electron microscope (SEM) images revealed fine grain morphology for x =.006, while an obvious increase in grain size was detected at x >.006. A high-energy storage density (Ws) of 2.47 J cm−3 and a recoverable energy density (Wrec) of 1.36 J cm−3 at an applied electric field of 220 kV cm−1 were achieved for x =.006. An impedance spectroscopic study showed the electrical response relationship with microstructure. The observed two semicircles in Nyquist plots are an indication of the contribution of grains (bulk) and grain boundaries as a resistive medium for conduction of charge carriers, which led to enhanced the capability in capacitor applications.
Original language | English (US) |
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Pages (from-to) | 3413-3421 |
Number of pages | 9 |
Journal | International Journal of Applied Ceramic Technology |
Volume | 21 |
Issue number | 5 |
DOIs | |
State | Published - Sep 1 2024 |
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Condensed Matter Physics
- Marketing
- Materials Chemistry