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 Å.
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Original Russian Text © Zh.V. Eremeeva, V.S. Panov, L.V. Myakisheva, A.N. Lizunov, A.A. Nepapushev, D.A. Sidorenko, A.V. Pavlik, E.V. Apostolova, 2017, published in Izvestiya Vysshikh Uchebnykh Zavedenii, Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya, 2017, No. 1, pp. 11–19.
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Eremeeva, Z.V., Panov, V.S., Myakisheva, L.V. et al. Structure and Properties of Dysprosium Titanate Powder Produced by the Mechanochemical Method. Russ. J. Non-ferrous Metals 59, 304–310 (2018). https://doi.org/10.3103/S1067821218030045
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DOI: https://doi.org/10.3103/S1067821218030045