Characterization of niobium(v) oxide received from different sources
作者： Bożena Pilarek , Aleksandra J. Pelczarska , Irena Szczygieł
DOI: 10.1007/S10973-017-6300-X
关键词: Analytical chemistry 、 Melting point 、 Sintering 、 Niobium 、 Materials science 、 Oxide 、 Mineralogy 、 Microstructure 、 Powder diffraction 、 Infrared spectroscopy 、 Thermal treatment
摘要: The characterization of three commercial powders niobium(V) oxide received from two producers was made. thermal behavior Nb2O5 up to melting point and its microstructure were studied using X-ray powder diffraction, thermoanalytical methods (DSC/TG), infrared spectroscopy (IR) scanning microscopy. Analysis the obtained results revealed that starting structure depend on origin niobia. Depending treatment, polymorphs can be observed. Sintering above 1200 °C in formation single phase, H-Nb2O5.
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