Sensitivity of SnO2 non-ohmic behavior to the sintering process and to the addition of La2O3
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
01/09/2001
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Resumo |
The work reported here consisted of a study of the sensitivity of the nonlinear electrical properties of dense SnO2. CoO ceramic systems to low concentrations of La2O3, sintering temperature and cooling rates. The nonlinear electrical properties of these systems were found to increase with decreasing cooling rates, a behavior attributed to the CoO solid state reactions at temperatures below 1000 degreesC. Post-annealing treatment in N-2-rich atmospheres strongly decreases the non-ohmic behavior of SnO2. CoO ceramic systems. However, this behavior may be restored through thermal treatment in an O-2-rich atmosphere. (C) 2001 Elsevier B.V. Ltd. All rights reserved. |
Formato |
1179-1185 |
Identificador |
http://dx.doi.org/10.1016/S0955-2219(00)00329-0 Journal of the European Ceramic Society. Oxford: Elsevier B.V., v. 21, n. 9, p. 1179-1185, 2001. 0955-2219 http://hdl.handle.net/11449/36923 10.1016/S0955-2219(00)00329-0 WOS:000169252600007 |
Idioma(s) |
eng |
Publicador |
Elsevier B.V. |
Relação |
Journal of the European Ceramic Society |
Direitos |
closedAccess |
Palavras-Chave | #electrical properties #La2O3 #sintering #SnO2 #varistors |
Tipo |
info:eu-repo/semantics/article |