Electronic Properties of Lead-Free (Ba0.95Ca0.05)(Ti0.92Sn0.08)O-3 Piezoceramic Nanofibers by Electrospinning

摘要

Lead-free (Ba0.95Ca0.05)(Ti0.92Sn0.08)O-3, (BCTS) piezoceramic nanofibers were prepared by electrospinning acetate precursor solutions in polyvinyl pyrrolidone, followed by calcining at 1150A(0)C for 2 h. X-ray diffraction of calcined nanofibers confirmed the formation of the BCTS phase and energy dispersive x-ray analysis confirmed the presence of Ca and Sn ions. The scanning electron microscope studies showed cylindrical fibers with a diameter in the range 80-275 nm. The dielectric constant and piezoelectric charge constant (d (33)) were 3485 at 100 Hz, RT and 398 pC/N, respectively.