作者: Surender Duhan , Sunita Devi , M. Singh
DOI: 10.1016/S1002-0721(08)60196-9
关键词: Neodymium 、 Annealing (metallurgy) 、 Analytical chemistry 、 Mineralogy 、 Nanocrystalline material 、 Infrared spectroscopy 、 Scanning electron microscope 、 Fourier transform infrared spectroscopy 、 Sintering 、 Amorphous solid 、 Materials science
摘要: Abstract Silica host matrix containing neodymium which is potentially important for the formation of nanocrystalline metal oxides was prepared by solgel method, using tetra-ethoxysilane and Nd(NO 3 ) as precursor materials. The samples were changed from amorphous to nanocrystallites phase at sintered temperature 550 °C (4 h), 750 (8 h) 950 (12 h). thermally treated sample microstructures investigated X-ray diffraction (XRD), Fourier transformation infrared spectroscopy (FTIR), scanning electron microscopy (SEM). While a further increase annealing time resulted in cubic hexagonal Nd 2 O nanocrystallites. At constant sintering 12 h, showed sharper intense peaks. sizes characterized XRD with average size ∼46 nm.