Investigation of electrical properties of tantalum doped SnO2 varistor system

Ta2O5 doped SnO2 varistor systems containing 0.5 mol% ZnO and 0.5 mol% CoO were prepared by mixed oxide method. Considering that ZnO and CoO oxides are densification additives only the SnO2.ZnO.CoO ceramics cannot exhibit electrical nonlinearity. A small amount of Ta2O5 improves the nonlinear proper...

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Veröffentlicht in:	Ceramics international 2005, Vol.31 (3), p.399-404
Hauptverfasser:	FILHO, F. M, SIMOES, A. Z, RIES, A, SOUZA, E. C, PERAZOLLI, L, CILENSE, M, LONGO, E, VARELA, J. A
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals Conductors, resistors (including thermistors, varistors, and photoresistors) Electronic equipment and fabrication. Passive components, printed wiring boards, connectics Electronics Electrotechnical and electronic ceramics Exact sciences and technology Technical ceramics
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