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- W3085380178 endingPage "114749" @default.
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- W3085380178 abstract "The effects of BiAlO3 content on the crystal structure, microstructure, dielectric, and piezoelectric properties of (1-x)(K0.5Bi0.5)TiO3-xBiAlO3 (abbreviated as KBT-BA) (x = 0–0.05) ceramics were systematically studied. Rietveld refinement of XRD data revealed a decrease in tetragonality and an increase in weight fraction of the cubic phase with the increase in BiAlO3 incorporation. The frequency-dependent temperature of dielectric maximum (Tm) was found to increase from 351 °C for pure KBT to 372 °C (at 1 MHz) for 1% BA doped unpoled sample. An increasingly diffuse dielectric anomaly and strengthening of relaxor behavior were noticed in KBT-BA solid-solution with the increase in BA content. Temperature dependence of DC conductivity followed Arrhenius behavior, and the activation energies were found to be in 0.98 ± 0.03 eV to 1.18 ± 0.02 eV range for all compositions. The piezoelectric charge coefficient (d33) was found to be 109 pC/N for 5% BiAlO3 doped sample, which is ~ 80% higher than that of pure KBT." @default.
- W3085380178 created "2020-09-21" @default.
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- W3085380178 date "2020-12-01" @default.
- W3085380178 modified "2023-10-02" @default.
- W3085380178 title "Significantly improved dielectric and piezoelectric properties of BiAlO3 modified potassium bismuth titanate lead-free ceramics" @default.
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- W3085380178 doi "https://doi.org/10.1016/j.mseb.2020.114749" @default.
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