Textured BaCe0.5Zr0.3Ln0.2O3−δ (Ln = Yb, Y, Gd, Sm, Nd and La) ceramics obtained by the aid of solid-state reactive sintering method. (December 2015)

• Record Type: Journal Article
• Authors: Lyagaeva, J.; Medvedev, D.; Filonova, E.; Demin, A.; Tsiakaras, P.
• Is Part Of: Scripta materialia. Volume 109(2015)
• Page Start: 34
• Page End: 37
• Publication Date: 2015-12
• Subjects: Ionic conductors -- Perovskite -- Surface modification -- Texture -- Liquid-phase sintering; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.07.012
• Languages: English
• ISSNs: 1359-6462

Abstract

Graphical abstract: Abstract: Dense BaCe0.5 Zr0.3 Ln0.2 O3− δ (Ln = Yb, Y, Gd, Sm, Nd and La) proton-conducting ceramic materials are successfully prepared by solid-state reactive sintering method. The XRD analysis shows that the surface of ceramics is characterized by a pronounced texturing, whereas the volume of the same samples (obtained by grinding of ceramics) reveals the typical patterns. The degree of surface texture for BaCe0.5 Zr0.3 Ln0.2 O3− δ (Ln = Yb, Y, Gd, Sm and Nd) samples is ranged between 24% and 39%, whereas for the BaCe0.5 Zr0.3 La0.2 O3− δ ceramic it reaches 99%. The possible reason of particular texture of ceramics is proposed.