Power generation characteristics of 0.50(Ba 0.7 Ca 0.3 )TiO 3 –0.50Ba(Zr 0.2 Ti 0.8 )O 3 /PVDF nanocomposites under impact loading

Power generation characteristics of 0–3-type 0.50(Ba 0.7 Ca 0.3 )TiO 3 –0.50Ba(Zr 0.2 Ti 0.8 )O 3 /PVDF nanocomposites, prepared using a melt-mixing process, under impact loading have been presented in this paper. A solid-state reaction process was utilized to prepare lead-free nanoceramic powder of 0.50(Ba 0.7 Ca 0.3 )TiO 3 –0.50Ba(Zr 0.2 Ti 0.8 )O 3 (BCZT50) which was then milled by high-energy ball milling technique. The BCZT50 as filler distribution in the PVDF matrix was checked from scanning electron microscope and the formation of BCZT50 and BCZT50/PVDF nanocomposites were ascertained by X-ray diffraction method. The free dielectric constant ( ε_33^T ), loss tangent (tanδ), piezoelectric coefficient ( d 33 ), piezoelectric voltage constant ( g 33 ), shore hardness ( D ), and figure of merit ( FoM ) were observed to increase while that of applied mechanical force ( F 3 ) decreases with the increase in filler concentration. Studies of voltage responses of all the BCZT50/PVDF nanocomposites due to impact loading using drop weight method have been carried out. A marked increment in the contact voltage due to different heights (applied mechanical energy) of impact was noticed as the concentration of filler particles was increased from 0 to 25