Phase and structural behaviour in the SmAlO3-TbAlO3 system

Author

Ohon, N. ; Vasylechko, L. ; Prots, Yu. ; Schmidt, Martin

Author_Institution

Lviv Polytech. Nat. Univ., Lviv, Ukraine

fYear

2014

fDate

26-30 May 2014

Firstpage

45

Lastpage

46

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 synchrotron powder diffraction and differential thermal analysis techniques. Formation of the continuous solid solution Sm_1-xTb_xAlO₃ with orthorhombic perovskite structure has been established. Peculiarity of the solid solution is existence of three regions with different relations of the lattice parameters. Based on the results obtained, as well as available literature data for the “pure” SmAlO₃ and TbAlO₃ compounds, the phase diagram of the pseudo-binary system SmAlO₃-TbAlO₃ has been constructed.

Keywords

X-ray diffraction; crystal structure; differential thermal analysis; lattice constants; samarium compounds; solid solutions; solid-state phase transformations; terbium compounds; SmAlO₃-TbAlO₃; continuous solid solution; differential thermal analysis; in situ synchrotron powder difraction; laboratory X-ray difraction; lattice parameters; orthorhombic perovskite structure; phase behaviour; pseudobinary system; structural behaviour; Artificial intelligence; Thermal analysis; crystal structure; perovskites; phase transition; rare earth aluminates;

fLanguage

English

Publisher

ieee

Conference_Titel

Oxide Materials for Electronic Engineering (OMEE), 2014 IEEE International Conference on

Conference_Location

Lviv

Print_ISBN

978-1-4799-5960-0

Type

conf

DOI

10.1109/OMEE.2014.6912332

Filename

6912332