caa a22 4500 463187768 CHVBK 20180406164859.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s10973-006-8004-5 doi (NATIONALLICENCE)springer-10.1007/s10973-006-8004-5 Obtainingof Ni0.65Zn0.35Fe2O4/SiO2nanocomposites by thermal decomposition of complex compounds embedded in silicamatrix [Elektronische Daten] [Marcela Stoia, C. Caizer, M. Stefanescu, P. Barvinschi, I. Julean] This article presents the results of our investigation on the obtaining of Ni0.65Zn0.35Fe2O4 ferrite nanoparticles embedded in a SiO2 matrix using a modified sol-gel synthesis method, starting from tetraethylorthosilicate (TEOS), metal (FeIII,NiII,ZnII) nitrates and ethylene glycol (EG). This method consists in the formation of carboxylate type complexes, inside the silica matrix, used as forerunners for the ferrite/silica nanocomposites. We prepared gels with different compositions, in order to obtain, through a suitable thermal treatment, the nanocomposites (Ni0.65Zn0.35Fe2O4)x-(SiO2)100-x (where x=10, 20, 30, 40, 50, 60 mass%). The synthesized gels were studied by differential thermal analysis (DTA), thermogravimetry (TG) and FTIR spectroscopy. The formation of Ni-Zn ferrite in the silica matrix and the behavior in an external magnetic field were studied by X-ray diffraction (XRD) and quasi-static magnetic measurements (50 Hz). Springer-Verlag, 2007 ethylene glycol nationallicence magnetic nationallicence Ni,Zn ferrite nationallicence sol-gel nationallicence Stoia Marcela Faculty of Industrial Chemistry and Environmental Engineering, University ‘Politehnica' of Timişoara, P-ta Victoriei nr. 2., 300006, Timişoara, Romania aut Caizer C. Faculty of Physics, West University of Timişoara, Bv. V. Parvan no. 4, 300223, Timişoara, Romania aut Stefanescu M. Faculty of Industrial Chemistry and Environmental Engineering, University ‘Politehnica' of Timişoara, P-ta Victoriei nr. 2., 300006, Timişoara, Romania aut Barvinschi P. Faculty of Physics, West University of Timişoara, Bv. V. Parvan no. 4, 300223, Timişoara, Romania aut Julean I. Faculty of Industrial Chemistry and Environmental Engineering, University ‘Politehnica' of Timişoara, P-ta Victoriei nr. 2., 300006, Timişoara, Romania aut Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 88/1(2007-04-01), 193-200 1388-6150 88:1<193 2007 88 10973 https://doi.org/10.1007/s10973-006-8004-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-8004-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Stoia Marcela Faculty of Industrial Chemistry and Environmental Engineering, University ‘Politehnica' of Timişoara, P-ta Victoriei nr. 2., 300006, Timişoara, Romania aut NATIONALLICENCE 700 1- Caizer C. Faculty of Physics, West University of Timişoara, Bv. V. Parvan no. 4, 300223, Timişoara, Romania aut NATIONALLICENCE 700 1- Stefanescu M. Faculty of Industrial Chemistry and Environmental Engineering, University ‘Politehnica' of Timişoara, P-ta Victoriei nr. 2., 300006, Timişoara, Romania aut NATIONALLICENCE 700 1- Barvinschi P. Faculty of Physics, West University of Timişoara, Bv. V. Parvan no. 4, 300223, Timişoara, Romania aut NATIONALLICENCE 700 1- Julean I. Faculty of Industrial Chemistry and Environmental Engineering, University ‘Politehnica' of Timişoara, P-ta Victoriei nr. 2., 300006, Timişoara, Romania aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 88/1(2007-04-01), 193-200 1388-6150 88:1<193 2007 88 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer