Akademik Veri Yönetim Sistemi
SYNTHESIS AND REACTIVITY IN INORGANIC METAL-ORGANIC AND NANO-METAL CHEMISTRY, cilt.42, sa.3, ss.398-401, 2012 (SCI-Expanded)
The total conductivity (sT) in the beta-phase and delta-Bi2O3 doped with Tb4O7 system was measured in the composition range between 1 and 30 mol% Tb4O7 at different temperatures. According to the DTA/TG results, this tetragonal type solid solution was stable up to about similar to 740 degrees C, and the solubility limit was found at similar to 5 mol% Tb4O7 in the beta-phase; this fcc type solid solution was stable up to about similar to 740 degrees C, and the solubility limit was found at similar to 30 mol% Tb4O7 in the delta-phase. All phases showed predominant oxide ionic conduction. It has been proposed that beta- and delta-Bi2O3 phases contain a large number of oxide anion vacancies and incorporated terbium cations at tetrahedral sites that affect the oxygen sublattice of the crystal structure.