Control of microstructure in TiO2-doped ceramic varistors based in the ZnO-Bi2O3-Sb2O3 system

Título:	Control of microstructure in TiO2-doped ceramic varistors based in the ZnO-Bi2O3-Sb2O3 system
Otros títulos:	Control microestructural en varistores cerámicos basados en el sistema ZnO-Bi2 O3 -Sb2 O3 dopados con TiO2
Autores/as:	Cruz, A. M. Reyes, Y. Gallego, B. Fernandez-Hevia, D. Peiteado, M.
Clasificación UNESCO:	331203 Materiales cerámicos
Palabras clave:	Zno-Based Varistors Electrical-Properties Grain-Growth Oxide Varistor Evolution, et al.
Fecha de publicación:	2012
Proyectos:	MAT 2010-16614 (CICYT) PT-120000-2010-031 (CICYT)
Publicación seriada:	Boletin de la Sociedad Espanola de Ceramica y Vidrio
Resumen:	Typically Titanium oxide is added to the formulation of Bi2O3-doped ZnO based varistors to enhance the growth of ZnO grains, thus allowing their application in low voltage devices. However its incorporation to formulation based on the ZnO-Bi2O3-Sb2O3 (ZBS system), characteristic of high voltage applications has not been analyzed jet. In this contribution it has been verified that far from promoting the ZnO grain growth, the incorporation of TiO2 to varistor formulations based on this ZBS ternary system leads to a better control of the varistor microstructure, which in turns causes an appreciable improvement of its electrical response.
URI:	http://hdl.handle.net/10553/76113
ISSN:	0366-3175
DOI:	10.3989/cyv.092012
Fuente:	Boletín de la Sociedad Española de Ceramica y Vidrio [ISSN 0366-3175], v. 51 (1), p. 61-66, (Enero-Febrero 2012)
Colección:	Artículos

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