Effect of Sr Deficiency on Electrical Conductivity of Yb-Doped Strontium Zirconate.

ABSTRACT: The effect of Sr-deficiency on microstructure, phase composition and electrical conductivity of Sr_xZr_0.95Yb_0.05O_3-δ (x = 0.94-1.00) was investigated via X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy and impedance spectroscopy. The samples were synthesized by a chemical solution method and sintered at 1600 °C. According to X-ray diffraction data, the samples with x = 0.96-1.00 were single-phase oxides possessing an orthorhombic perovskite-type structure; while zirconia-based minor phases arouse at x = 0.94, which was confirmed by the electron microscopy. Sr stoichiometry was shown to influence the electrical conductivity. The highest total and bulk conductivities, 6-10^-4 Scm^-1 and 3-10<

SUBMITTER: Khaliullina A 

PROVIDER: S-EPMC9229988 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature