Sintering behaviour of CuO-doped SnO2

The sintering behaviour of CuO-doped SnO2 ceramics was studied. Additive-free SnO2 materials do not densify after heat treatment to 1400 C, whereas materials doped with 0.5-0.75 wt% CuO densify to 98% of theoretical. Copper oxides (CuO/Cu2O) experience reduction and re-oxidation phenomena. There is...

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Veröffentlicht in:	Journal of the European Ceramic Society 2000-12, Vol.20 (14-15), p.2415-2420
Hauptverfasser:	LALANDE, Jérome, OLLITRAULT-FICHET, Rolande, BOCH, Philippe
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
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Zusammenfassung:	The sintering behaviour of CuO-doped SnO2 ceramics was studied. Additive-free SnO2 materials do not densify after heat treatment to 1400 C, whereas materials doped with 0.5-0.75 wt% CuO densify to 98% of theoretical. Copper oxides (CuO/Cu2O) experience reduction and re-oxidation phenomena. There is no evidence of high vaporisation of SnO2, nor of liquid formation at low temperature ( < 1000 C) in the CuO-SnO2 system. This suggests that CuO acts by grain-boundary mechanisms. 23 refs.
ISSN:	0955-2219 1873-619X
DOI:	10.1016/S0955-2219(00)00153-9