Low-temperature synthesis and characterization of apatite-type lanthanum silicates
authors Kharlamova, T; Pavlova, S; Sadykov, V; Lapina, O; Khabibulin, D; Krieger, T; Zaikovskii, V; Ishchenko, A; Salanov, A; Muzykantov, V; Mezentseva, N; Chaikina, M; Uvarov, N; Frade, J; Argirusis, C
nationality International
author keywords lanthanum silicate; apatite; synthesis; conductivity; oxygen mobility
keywords OXYGEN
abstract Al- and Sr-doped apatite-type lanthanum silicates (ATLS) have been prepared using mechanochemical activation (MA) and Pechini (Pe) methods, with some structural and electrical properties of doped samples being studied. MA provides ATLS formation already at room temperature after 20-35 min activation. Synthesis via Pe route occurs through the solid state reaction mechanism. MA of carbonate precursors obtained via Pe method results in the fort-nation of a single-phase ATLS after annealing at 900 degrees C. For Al-doped apatite samples fort-nation of LaAlO3 as a secondary phase is observed at high substitution levels depending on the sample stoichiometry, which affects properties of ceramics obtained. (c) 2008 Elsevier B.V. All rights reserved.
issn 0167-2738
year published 2008
volume 179
issue 21-26
beginning page 1018
ending page 1023
digital object identifier (doi) 10.1016/j.ssi.2008.01.028
web of science category Chemistry, Physical; Physics, Condensed Matter
subject category Chemistry; Physics
unique article identifier WOS:000259269100060
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