Microstructure and elastic modulus of ceramic Li (x) Na1-x NbO3 perovskite solid solutions prepared at 6 GPa
authors Palatnikov, MN; Shcherbina, OB; Efremov, VV; Sidorov, NV; Salak, AN
nationality International
journal INORGANIC MATERIALS
abstract The microstructure of ceramic samples of high-pressure ferroelectric Li (x) Na1 - x NbO3 (x = 0.17, 0.25) perovskite solid solutions has been studied in relation to synthesis temperature and composition. The elastic properties (Young's modulus) of the high-pressure Li (x) Na1 - x NbO3 (x = 0.125, 0.17, 0.25) solid solutions have been studied for the first time by a contact technique. The results demonstrate that, with increasing sintering temperature, the Young's modulus of the high-pressure Li (x) Na1 - x NbO3 solid solutions at singular concentration points (x (i) = 0.125 and 0.25, Li/Na = 1/7 and 1/3) increases considerably, whereas that of Li0.17Na0.83NbO3 decreases markedly, which seems to be related to the recrystallization behavior of ordered and disordered solid solutions at high pressures.
publisher MAIK NAUKA/INTERPERIODICA/SPRINGER
issn 0020-1685
year published 2010
volume 46
issue 12
beginning page 1348
ending page 1352
digital object identifier (doi) 10.1134/S0020168510120149
web of science category Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000284600000014
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