文摘
Crystallization and phase transition processes taking place in the Dy2O3–TiO2 system during the isothermal annealing of the precursors synthesized by co-precipitation were studied. The phase composition of the obtained powders is determined by not only the chemical composition of the precursor (Dy2O3: TiO2 ratio) and annealing temperature but also by the procedure of precursor synthesis determining the uniformity of Dy and Ti distribution in the precursor precipitate. Higher homogeneity of precursor particles provides the formation of almost single-phase nanocrystaline dysprosium titanate (Dy2TiO5, Dy2Ti2O7) powders at annealing temperatures of 800–1000°C.Original Russian Text © V.V. Popov, A.P. Menushenkov, A.A. Yastrebtsev, S.A. Korovin, A.V. Tumarkin, A.A. Pisarev, N.A. Tsarenko, L.A. Arzhatkina, O.A. Arzhatkina, 2016, published in Zhurnal Neorganicheskoi Khimii, 2016, Vol. 61, No. 4, pp. 423–432.
