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

The topography 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 sampleswere 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, cooledwith the furnace and polished to the thickness of about 1mm. The microstructure of all samples was determined by means of atomic forcemicroscopy at their fresh fractureswith the use of NT-MDT Ntegra AFM. Detailed information can be found in: http://dx.doi.org/10.1016/j.ssi.2013.10.008