Mosquera, A.Rodriguez-Paez, J. E.Varela, José Arana [UNESP]Bueno, Paulo Roberto [UNESP]2014-05-202014-05-202007-01-01Journal of the European Ceramic Society. Oxford: Elsevier B.V., v. 27, n. 13-15, p. 3893-3896, 2007.0955-2219http://hdl.handle.net/11449/34161Tin oxide, SnO2. is a very used compound in industry and one of its uses is as varistor. For the current requirements of the technology is necessary a strict control of the chemical purity and the particle size of the raw material; for that reason the great interest that exists at the moment to develop synthesis methods that allow to get these requirements. In this work, ceramic powders of the Sn-Co-Nb-Ti-Al system using the controlled precipitation and polymeric precursor (Pechini) methods were synthesized. The raw material obtained was characterized using X-ray diffraction (XRD), thermal analysis (DTA/FG) and scanning electron microscopy (SEM). The sintering samples shown a good varistor behavior with non-linear coefficient (alpha) values similar to 22, and Er 2083 V/cm(2). (c) 2007 Elsevier Ltd. All rights reserved.3893-3896engsynthesispowders-chemical preparationelectrical propertiesvaristorsArtigo10.1016/j.jeurceramsoc.2007.02.056WOS:000248822800067Acesso restrito04770459067332540000-0003-2827-0208