caa a22 4500 378857576 CHVBK 20180305123338.0 cr unu---uuuuu 161128e20030301xx s 000 0 eng 10.1524/zkri.218.3.187.20748 doi (NATIONALLICENCE)gruyter-10.1524/zkri.218.3.187.20748 Thermal expansion of lattice parameters of La3Nb0.5Ga5.5O14, La3Ta0.5Ga5.5O14 and La3SbZn3Ge2O14 [Elektronische Daten] [A. Pavlovska, J. Schneider, S. Werner, B. Maximov, B. Mill, C. Baetz] The thermal expansion of trigonal La3Nb0.5Ga5.5O14 (LNG), La3Ta0.5Ga5.5O14 (LTG) and monoclinic La3SbZn3Ge2O14 (LSZG) was studied with X-ray powder diffraction technique. The trigonal crystal structures of LNG and LTG are stable under elevated temperature and no phase transition was detected up to 1123 K, whereas the monoclinic LSZG undergoes a phase transition at temperature 523(50) K, presumably to trigonal space group P321. The thermal expansion of LNG, LTG and LSZG is anisotropic. This can be explained by the layer structure of title compounds. The mean coefficients in the monoclinic a, b and c directions for LSZG from room temperature to 523(50) K are 8.20, 8.47 and 6.22 [10-6/K], respectively. The mean coefficients in the trigonal a and c directions are 8.141 and 6.162 [10-6/K] for LNG; 7.653 and 5.344 [10-6/K] for LTG from room temperature to 1123 K. © 2003 Oldenbourg Wissenschaftsverlag GmbH Crystallography nationallicence Inorganic chemistry nationallicence Organic chemistry nationallicence Pavlovska A. aut Schneider J. aut Werner S. aut Maximov B. aut Mill B. aut Baetz C. aut Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 218/3(2003-03-01), 187-192 2194-4946 218:3<187 2003 218 zkri https://doi.org/10.1524/zkri.218.3.187.20748 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/zkri.218.3.187.20748 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pavlovska A. aut NATIONALLICENCE 700 1- Schneider J. aut NATIONALLICENCE 700 1- Werner S. aut NATIONALLICENCE 700 1- Maximov B. aut NATIONALLICENCE 700 1- Mill B. aut NATIONALLICENCE 700 1- Baetz C. aut NATIONALLICENCE 773 0- Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 218/3(2003-03-01), 187-192 2194-4946 218:3<187 2003 218 zkri CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter