Preparation of Y-Doped Barium Cerate and Strontium Cerate Membranes
BaCe0.9Y0.1O3-a and SrCe0.9Y0.1O3-a powders were synthesized by both the solid-state reaction method and the liquid citrate method. The shrinkage, porosity and relative density of membranes prepared from these powders were determined, after sintering at 1550°C (BaCe0.9Y0.1O3-a membrane) or 1450°C (SrCe0.9Y0.1O3-a membranes) for 3 hours. The XRD patterns show that the crystal structures of the prepared powders and the sintered membranes are orthorhombic perovskite structures. The membranes prepared from the powders synthesized by the solid-state reaction method are denser than those from the powders synthesized by the citrate method with the same composition under the identical sintering conditions.
Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li
J. H. Gu and L. He, "Preparation of Y-Doped Barium Cerate and Strontium Cerate Membranes", Key Engineering Materials, Vols. 280-283, pp. 895-898, 2005