E. Chtoun et al., Synthesis and X-ray diffractometric studies of (1-x)A(2)Ti(2)O(7)-xFe(2)TiO(5) (A = Eu, Y) solid solutions., ANN CHIM-SC, 25(5), 2000, pp. 381-386
New solid solutions with pyrochlore structure have been evidenced in the tw
o binary systems Y2Ti2O7 - Fe2TiO5 et Eu2Ti2O7 - Fe2TiO5. The domain of com
position of the solid solutions was defined by X-ray diffraction, 0-33 and
0-40% (Fe2TiO5), respectively, for Y2Ti2O7 et Eu2Ti2O7 The space group of t
he solid solutions is Fd3m. A contraction of the cubic cell parameters is o
bserved for the two solid solutions which are non-stoichiometric.