Abstract
The structure and main physicochemical properties of dysprosium titanate powders prepared by mechanochemical synthesis from the low-temperature modification of titanium oxide and modification of dysprosium oxide are investigated applying X-ray phase analysis (XPA), scanning electron microscopy, Raman spectroscopy (Raman spectra), transmission electron microscopy, and chemical analysis. It is established based on XPA that the initial oxides completely transform into X-ray amorphous dysprosium titanate (Dy2TiO5) during the mechanochemical treatment of a mixture for 30–60 min. A microelectron diffraction pattern of Dy2TiO5 powders prepared by mechanosynthesis has a ring structure characteristic of the X-ray amorphous phase with a certain amount of inclusions of a crystalline phase. The dysprosium titanate powder fabricated by induction melting possesses the regular cubic crystalline lattice with a parameter of 3.4 A.
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