The structure of lead-silicate glasses and nanocomposites doped with iron oxide

The structure of iron-doped glasses and glass-ceramics were studied. Samples has the composition of 50SiO2–(50−x)PbO–xFe2O3, where x=15, 20 and 25 (in mol%). All samples were prepared by the conventional melt quenching technique; the melting was conducted in air at 1623 K in alumina crucibles. The melts were poured on a brass plate preheated to 573 K and formed into button-shaped samples. Afterwards pellets wereannealed at 673K, 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.2013.10.008