Mechanical Activation for Synthesis Reaction of Magnetic, Optical & Dielectric Properties of Gallium Oxide Doped Strontium Titanate Ceramic Material

Abstract

Nano crystalline SrCO₃, TiO₂ and Gallium oxide synthesized by the solid state reaction method and it is mechanically activated. The mixed powder of  SrCO₃-TiO₂ and Gallium Oxide was calculated by stoichiometric ratio  of the sample was activated by planetary ball milling method for 100 hours, pressed and then sintered at 1100 ⁰C. The effect of milling and calcined the phase formation was investigated and destroy the agglomerates. The sintered powder was characterized for Phase evolution during synthesis and changes in particle size, surface morphology and specific surface area were monitored by XRD, FESEM, BET and Laser Raman. The morphology of synthesized sample study was carried by Vibration Sample Magnetometer (VSM) measurement revealed the magnetic nature of Gallium oxide doped SrTiO₃.  The mechanically milled SrCO₃ sample accelerated by the diffusion process and increased the calcinations temperature. It can deduced from the results that the size control is possible and nano-sized SrTiGa₂O₃ particles with about 61 nm (Debye-Scherer’s  formula) can be synthesized by solid state reaction method. Dielectric measurements were studied at different frequency and temperature have been determined