Analysis of secondary phases segregated and precipitated in SnO2-based varistors
| Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
|---|---|
| Data(s) |
20/05/2014
20/05/2014
01/04/2005
|
| Resumo |
Transmission and scanning electron microscopy techniques were used to study the heterogeneities found in the microstructure of (SnO2Co3O4Nb2O5Fe2O3)-Co-.-Nb-.-Fe-. and (SnO2ZnONb2O5FC2O3)-Zn-.-Nb-.-F-. varistors. Second phases encountered both inside the grains and ingrain boundary regions were identified using energy dispersive spectrometry and electron diffraction patterns. Through the electrical characterisation, the presence of iron oxide among the additives was determined to highlight the non-linear properties of the specimens. A discussion on the influence of second phases on the non-linear features of these systems is also addressed. (C) 2004 Elsevier Ltd. All rights reserved. |
| Formato |
401-406 |
| Identificador |
http://dx.doi.org/10.1016/j.jeurceramsoc.2004.02.010 Journal of the European Ceramic Society. Oxford: Elsevier B.V., v. 25, n. 4, p. 401-406, 2005. 0955-2219 http://hdl.handle.net/11449/36534 10.1016/j.jeurceramsoc.2004.02.010 WOS:000226924100011 |
| Idioma(s) |
eng |
| Publicador |
Elsevier B.V. |
| Relação |
Journal of the European Ceramic Society |
| Direitos |
closedAccess |
| Palavras-Chave | #electron microscopy #grain boundaries #microstructure-final #varistors #SnO2 |
| Tipo |
info:eu-repo/semantics/article |
