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Author: search.filters.author.Sukwisute, PisanSubject: search.filters.subject.Barium zirconate titanate

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    Item type:Publication,
    Energy conversion capacity of barium zirconate titanate
    (2020-01-01)
    Binhayeeniyi, Nawal
    ;
    Sukwisute, Pisan
    ;
    Nawae, Safitree
    ;
    Muensit, Nantakan
    In this study, we investigated the effect of zirconium content on lead-free barium zirconate titanate (BZT) (Ba(Zr<inf>x</inf>Ti<inf>1-x</inf>)O<inf>3</inf>, with x = 0.00, 0.01, 0.03, 0.05, and 0.08), which was prepared by the sol-gel method. A single-phase perovskite BZT was obtained under calcination and sintering conditions at 1100 °C and 1300 °C. Ferroelectric measurements revealed that the Curie temperature of BaTiO<inf>3</inf> was 399 K, and the transition temperature decreased with increasing zirconium content. At the Curie temperature, Ba(Zr<inf>0.03</inf>Ti<inf>0.97</inf>)O<inf>3</inf> with a dielectric constant of 19,600 showed the best performance in converting supplied mechanical vibration into electrical power. The experiments focused on piezoelectric activity at a low vibrating frequency, and the output power that dissipated from the BZT system at 15 Hz was 2.47 nW (30 MΩ). The prepared lead-free sol-gel BZT is promising for energy-harvesting applications considering that the normal frequencies of ambient vibration sources are less than 100 Hz.