The structure of lead-borate glasses containing nanocrystallites of iron oxides
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The structure of iron-doped glasses and glass-ceramics were studied. Glass samples of composition of xFe2O3–(100 − x)(B2O3–2PbO) (2.5 b x b 37, in mol%) were prepared by the conventional melt quenching technique. The melting was conducted in alumina crucibles at the temperature of 1523 K. The melts were poured on a preheated (573 K) brass plate and pressed by an another plate to obtain flat circular samples of 1–2 mm thickness and 20–30 mm in diameter. The quenched pellets were annealed at the temperature of 673 K for 3h and cooled with the furnace. The presence of crystalline phases was examined by the X-ray diffraction method with the use of a Philips X'Pert Pro MPD system with CuKα radiation. Detailed information can be found in: http://dx.doi.org/10.1016/j.ssi.2014.01.042
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Natalia Anna Wójcik
