BaZr0.85Me0.15O2.925 (Me=Y, In and Ga): crystal growth, high-resolution transmission electron microscopy, high-temperature X-ray diffraction and neutron scattering experiments

Mechanosynthesis of nanopowders of the proton-conducting electrolyte material Ba(Zr, Y)O3−δ

“…Chen et al suggested that the negative impact of solute drag caused this effect. As comparable aliovalent dopant enrichment of crystallite interfaces has also been observed in the current materials for nanoscale powders [28], a similar phenomenon may be acting in the present system. It also should be noted that a high grain growth in composition x ¼ 0, does not relate to a higher density, i.e grain growth occurs without shrinkage.…”

Space–charge theory applied to the grain boundary impedance of proton conducting BaZr0.9Y0.1O3−δ

“…The charge of the core was concluded to be an inherent materials property. Likewise, segregation of acceptor solutes in the grain boundaries has been observed for proton conductors in BaZr 0.85 Y 0.15 O 3 − δ [28], which as for the oxide ion conductors indicates that the grain boundary core is positive and the spacecharge layers negative.…”

Fabrication and electrical characterization of 15% yttrium-doped barium zirconate—nitrate freeze drying method combined with vacuum heating

“…Among various reports for fabrication of finer oxides [37][38][39][40], one unique method, called as the nitrate freeze-drying method, was reported for very fine powder of barium titanate (BaTiO 3 ) (10-15 nm) [40]. In this study, we employed the nitrate freezedrying method, by which there is no report on the synthesis of barium zirconate, to obtain a fine powder of BaZr 0.85 Y 0.15 O 3−ı and investigated the sintering behavior and their grain boundary resistances.…”