Artículo

Electrical and microstructural properties of (Zn, Nb, Fe)-doped SnO2 varistor systems

Parra, RodrigoIcon ; Varela, J. A.; Aldao, Celso ManuelIcon ; Castro, Miriam SusanaIcon
Fecha de publicación: 09/12/2004
Editorial: Elsevier
Revista: Ceramics International
ISSN: 0272-8842
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:

Resumen

The electrical and microstructural properties of SnO2-based varistors with the addition of 0.025 and 0.050 mol% of Fe2O3 have been characterised. Electric field (E) versus current density (J) curves showed that the effect of Fe2O3 addition is to increase both the non-linear coefficient and the breakdown voltage. Variations in the potential barrier height were inferred from impedance spectroscopy (IS) analysis. Through transmission electron microscopy (TEM), the presence of precipitates of secondary phases was confirmed. Samples with precipitates displayed poor electrical properties.
Palabras clave: Microstructure-Final , Electrical Properties , Impedance , Varistors , Tin Dioxide
 
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/29524
URL: https://www.sciencedirect.com/science/article/pii/S0272884204004389
DOI: http://dx.doi.org/10.1016/j.ceramint.2004.08.009
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Articulos(INTEMA)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Citación
Parra, Rodrigo; Varela, J. A.; Aldao, Celso Manuel; Castro, Miriam Susana; Electrical and microstructural properties of (Zn, Nb, Fe)-doped SnO2 varistor systems; Elsevier; Ceramics International; 31; 5; 9-12-2004; 737-742
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