Electrical properties of Y-and Mn-doped BaTiO3-based PTC ceramics

A series of nano-Ba0.85-xYxSr0.07Ca0.08MnyTi1-yO3 (x = 0.7-1.2%, y = 0-0.06%) solid solutions were synthesised by a solid-state reaction at low temperature. Doping different content Y and Mn showed that the room-temperature resistance decreased by doping Y, and the resistance jump increased dramatic...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Ceramics international 2008-12, Vol.34 (8), p.2007-2010
Hauptverfasser:	DING, S. W, JIA, G, WANG, J, HE, Z. Y
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals Electrotechnical and electronic ceramics Exact sciences and technology Technical ceramics
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A series of nano-Ba0.85-xYxSr0.07Ca0.08MnyTi1-yO3 (x = 0.7-1.2%, y = 0-0.06%) solid solutions were synthesised by a solid-state reaction at low temperature. Doping different content Y and Mn showed that the room-temperature resistance decreased by doping Y, and the resistance jump increased dramatically by doping Mn. The optimum donor level increased significantly with increasing acceptor level. The room-temperature resistance changed as a U-type curve with increasing Mn additive concentration while the resistance jump was reversed. The influence of sintering temperature and soaking time on the properties of PTC materials is discussed. 18 refs.
ISSN:	0272-8842 1873-3956
DOI:	10.1016/j.ceramint.2007.07.023