Please use this identifier to cite or link to this item:
http://acervodigital.unesp.br/handle/11449/32772- Title:
- Electrical and micro structural properties of (Zn, Nb, Fe)-doped SnO2 varistor systems
- UNMdP
- Universidade Estadual Paulista (UNESP)
- 0272-8842
- 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. (c) 2004 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
- 1-Jan-2005
- Ceramics International. Oxford: Elsevier B.V., v. 31, n. 5, p. 737-742, 2005.
- 737-742
- Elsevier B.V.
- microstructure-final
- electrical properties
- impedance
- varistors
- tin dioxide
- http://dx.doi.org/10.1016/j.ceramint.2004.08.009
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/32772
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.