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HomeSolid State PhenomenaSolid State Phenomena Vol. 230Structural Behaviour of Solid Solution in the...

Structural Behaviour of Solid Solution in the SmAlO₃−TbAlO₃ System

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Abstract:

Phase and structural behaviour in the SmAlO₃–TbAlO₃ system has been studied in a whole concentration range by means of laboratory X-ray diffraction, in situ high temperature synchrotron powder diffraction and differential thermal analysis. Formation of the continuous solid solution Sm₁₋_xTb_xAlO₃ with the orthorhombic perovskite structure (space group Pbnm) has been established. Peculiarity of the investigated system is lattice parameter crossovers resulted in the existence of three regions with different relations of the lattice parameters. Based on the results obtained, as well as an available literature data for the “pure” SmAlO₃ and TbAlO₃, a phase diagram of the pseudo-binary SmAlO₃–TbAlO₃ system has been constructed.

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Periodical:

Solid State Phenomena (Volume 230)

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39-44

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.230.39

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Online since:

June 2015

Authors:

Natalja Ohon, Leonid Vasylechko*, Yurii Prots, Marcus Schmidt, I.I. Syvorotka

Keywords:

Crystal Structure, Lattice Cross-Over, Perovskites, Phase Transition, Rare Earth Aluminates, Solid Solution

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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