ANALISIS MIKROSTRUKTUR DAN STRUKTUR KRISTAL BAHAN FERROELEKTRIK Ba0,95Sr0,05TiO3 DIDOPING Bi2O3

Abstract

A series of ferroelectric material Bi₂O₃ doped of Ba_0.95Sr_0.05TiO₃ with doping level (0 - 2 mole%) has been synthesized by mixing raw materials using planetary mill, than pressed to form green pellet and finally sintered at 1300 ^oC for 2 hours. Doping effect to their microstructure and crystal structure were analyzed using SEM/EDX and XRD. SEM image shows ferroelectric domain. When doped material was set in grain growth favored, and for high doping (2%) it shows a secondary phase and identified as Bi₄Ti₃O₁₂. Furthermore doped material cause an increase tetragonality.