Temperature dependence permittivity property study of (1-x) BaTiO3-xLa2O3 electro ceramic material
DOI:
https://doi.org/10.20372/star.V13i3.01Keywords:
Structure, Permittivity properties, BaTiO3, La2O3, (1-x)BaTiO3-xLa2O3Abstract
High dielectric permittivity materials could be used in dielectric capacitors because of the demands placed on the integration and shrinking of electronic devices. This study's primary goal was to look into the permitivity and structure of (1-X) BaTiO3–(X) La2O3. By using a mixture of BaCO3, La2O3, and TiO2 purity of 99.0-99.9 precursors, a twofold sintering solid state reaction was used to create the (1-X)BaTiO3–(X)La2O3 with (x=0.18) elctro-ceramic nano powder. The sample's structure and permittivity characteristics were ascertained during the characterization procedure using XRD and an impedance analyzer respectively. The crystal structure was determined by XRD examination to be tetragonal, with lattice constants of a = 4.52Ao and c = 5.43Ao. The permittivity measurements' results indicate that when temperature rises, the sample's real permittivity constant and imaginary permittivity party first rises peak and then finally fall. Crystal defects form at higher temperatures, which lead to an increase in interfacial polarization. This means that it is predictable for the dielectric constant to rise as temperature does.
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Accepted 2024-10-08
Published 2024-09-30
