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Type of publication: research article
Type of publication (PDB): Straipsnis Clarivate Analytics Web of Science / Article in Clarivate Analytics Web of Science (S1)
Field of Science: Medžiagų inžinerija / Materials engineering (T008)
Author(s): Šalkus, Tomas;Kežionis, Algimantas;Kazakevičius, Edvardas;Dindune, A;Kanepe, Z;Ronis, J;Bohnke, O;Kazlauskienė, Vida;Miškinis, Juozas;Lelis, Martynas;Orliukas, Antanas
Title: Preparation and characterization of Li2.9Sc1.9-yYyZr0.1(PO4)3 (where y=0, 0.1) solid electrolyte ceramics
Is part of: Phase transitions. London : Taylor & Francis, Vol. 83, iss. 8 (2010)
Extent: p. 581-594
Date: 2010
Keywords: Ceramics;Sintering;Differential thermal analysis;XPS;Phase transition;Electrical conductivity
Abstract: The solid electrolyte Li2.9Sc1.9-yYyZr0.1(PO4)3 (where y = 0, 0.1) compounds belong to monoclinic symmetry (space group P21/n) at room temperature. The Zr 3d, Sc 2p, P 2p, Y 3d, O 1s, and Li 1s core level X-ray photoelectron spectra (XPS) were fitted. The Li ions in ceramics without Y occupy two different positions and in the ceramics with Y they occupy one position in the lattice. The deconvolutions of the Zr 3d, P 2p, Sc 2p, and Y 3d core level XPS are associated with different valence states on the surfaces of the investigated ceramics. Anomalies of enthalpy, change of activation energy of ionic conductivity, anomalies of dielectric permittivity in the temperature range 420-520 K of investigated compounds were found. The phenomena are related to diffuse structure phase transition in the compounds. At temperatures 600 and 900 K, the compounds belong to orthorhombic symmetry (space group Pbcn)
Affiliation(s): Lietuvos energetikos institutas
Vilniaus universitetas
Vilniaus universiteto Medžiagotyros ir taikomųjų mokslų institutas
Vytauto Didžiojo universitetas
Švietimo akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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