The impact of Nd3+/La3+ substitution on the cation distribution and phase diagram in the La2SrAl2O7-Nd2SrAl2O7 system

• DOI: 10.15826/chimtech.2018.5.1.05
• Publication Date: 2018-05-28T11:44:18Z
• Authors: I. A. Zvereva; E. A. Tugova; V. F. Popova; O. I. Silyukov; I. A. Minich
• Keywords: Liquidus; Solidus; Lanthanum; Substitution (logic)

The effect of isovalent cation substitution lanthanum atoms in the structure La2SrAl2O7 oxide, and phase equilibria (solidus-liquidus curves) binary system La2SrAl2O7-Nd2SrAl2O7 were studied. It was found that Nd3+ for La3+ has on respect character distribution solid solution La2–xNdxSrAl2O7 from statistically disordered to ordered one where strontium cations predominantly occupied rock-salt layers, as reflected by solidus-liquidus lines.