Fabrication of La³⁺ doped Ba_1-x La _x TiO₃ ceramics with improved dielectric and ferroelectric properties using a composite-hydroxide-mediated method.

ABSTRACT: Lanthanum (La³⁺) doped Ba_1-x La _x TiO₃ (x = 0.0, 0.0025, 0.005, 0.0075) ceramics were synthesized by the composite-hydroxide-mediated method. Rietveld refinement of the XRD patterns confirmed the formation of a perovskite crystal structure that transforms from tetragonal to pseudo-cubic with La³⁺ doping content (x). Scanning electron microscopy displayed a dense and homogeneous microstructure with reduced grain size on La³⁺ doping. The frequency and temperature-dependent dielectric measurements showed an improvement in the dielectric permittivity, a decrease in the ferroelectric-paraelectric transition temperature, and an increase in the dielectric diffusivity with increasing La³⁺ dopin

SUBMITTER: Younas U 

PROVIDER: S-EPMC9912143 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature