Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
Ergebnis 19 von 739
Journal of the European Ceramic Society, 2008, Vol.28 (1), p.109-115
2008
Volltextzugriff (PDF)

Details

Autor(en) / Beteiligte
Titel
Nano-sized barium titanate powders with tetragonal crystal structure prepared by flame spray pyrolysis
Ist Teil von
  • Journal of the European Ceramic Society, 2008, Vol.28 (1), p.109-115
Ort / Verlag
Oxford: Elsevier Ltd
Erscheinungsjahr
2008
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
  • Nano-sized BaTiO 3 powders with regular morphology and tetragonal crystal structure were prepared by flame spray pyrolysis from a spray solution with citric acid. The precursor powders prepared at the low flow rates of fuel gas at 2 and 2.5 L/min had large, hollow, thin wall structures. On the other hand, the precursor powders prepared at a high flow rate of fuel gas at 4 L/min had a dense submicronic structure. Those precursor powders with a hollow, thin wall structure formed a slightly aggregated BaTiO 3 of nanometer-sized primary powders after post-treatment. The slightly aggregated BaTiO 3 became nano-sized powders via a simple milling process. The mean sizes of the powders changed from several tens to 200 nm when post-treatment temperatures changed from 700 to 1000 °C. The BaTiO 3 powders obtained from the citric acid spray solution had tetragonal crystal structure at post-treatment temperature of 1000 °C. Conversely, those BaTiO 3 powders prepared from a spray solution that did not contain citric acid had cubic crystal structures at this same post-treatment temperature.

Weiterführende Literatur

Empfehlungen zum selben Thema automatisch vorgeschlagen von bX