Effect of Na2Ti6O13 addition on the microstructure and PTCR characteristics of Ba0.94(Bi0.5K0.5)0.06TiO3 ceramics

As a candidate of lead-free positive temperature coefficient of resistivity (PTCR) materials, Ba0.94(Bi0.5K0.5)0.06TiO3–xNa2Ti6O13 (x=0−0.20%) ceramics were prepared by the solid-state reaction technique. X-ray diffraction results indicated that there was no secondary phase detected in the Na2Ti6O13...

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Veröffentlicht in:	Ceramics international 2015-04, Vol.41 (3), p.4735-4741
Hauptverfasser:	Zhao, Jiao-jiao, Pu, Yong-ping, Zhang, Pan-pan, Cheng, Long, Li, Si-jie, Feng, Li
Format:	Artikel
Sprache:	eng
Schlagworte:	Annealing BaTiO3 Ceramics Curie temperature Electrical resistivity Grain size K0.5Bi0.5TiO3 Microstructure Na2Ti6O13-doped Phases PTCR Reducing atmospheres Reoxidation Scanning electron microscopy
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