BaBiO3 (perovskite) polycrystalline semiconducting material wa chemical method. Structure of the sample wa (XRD). Grain, Grain boundary topography and chemical composition of the studied by using Scanning Electron Microscope (SEM) and Energy Dispersive X Spectrometry (EDS). Fourier transform-infrared spectroscopy (FT study of band structure. The result of XRD characterization wa BaBiO3 is monoclinic perovskite and crystalline size is 85 BaBiO3 showed the grain size of 85 nm. The FT the BaBiO3 has absorbent peak at 1420 cm

Article Information Nano particle Barium Titanate (BT) is the first ferroelectric ceramics and a good nominee for a variety of applications from large family of Perovskite. In this study BaTiO3 was synthesised by using Sol-gel (green chemistry) method. It is environmental friendly method and has a significant influence on the structure and properties of BT. XRD patterns were indexed on the basis of tetragonal-BaTiO3 phase. The microstructure of the samples was investigated by using Scanning electron microscope (SEM). The grain size range was 90 nm for the dried gel powder for the powder calcined at ≈ 1150°C. Infrared (IR) spectrum was recorded at room temperature. The absorption peak observed at 545 cm-1 found to be BT characterization peak.

(1-x)PbMg1 /3 Nb 2/3 O 3 (PMN)-(x)K 0.5 Bi 0.5 TiO 3 (KBT)) materials(with x = 0.15,0.25 and 0.35) were prepared by double sintering conventional mixed-oxide method. X-ray powder diffraction patterns reveal that the crystal structure of PMN-KBT crystal changes from cubic to tetragonal symmetry with increasing amounts of KBT(x). The dielectric and ferroelectric properties of PMN-KBT crystals with different compositions near the morphotropic phase boundary (MPB) were studied systematically. The dielectric constant and dielectric loss tangent were measured as a function of both temperature and frequency from impedance data. With increasing KBT content, the frequency dependence of the transition temperature and the diffuseness of phase transition is observed in dielectric peak for sintered specimens. Highphase transition temperature (T m) of 319•C was obtained at 1 kHz for the composition x = 0.35. The diffuse phase transition(DPT) of the samples were assessed and the broadest dielectric peak occurs at x = 0.35, with diffusivity value  = 1.86, which leads to a morphotropic phase boundary in this system. In order to study ferroelectric property of (1-x) PMN-(x)KBT ceramics, polarization vs. electric field (P-E) hysteresis loops were traced at room temperature under different applied field. It is observed that the loop area is increased as the applied voltage has increased. The remnant polarization (P r)and coercive field (E C) are also increased as the applied voltage is increased.