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Synthesis, characterization and sintering of nanocrystalline titania powders produced by chemical vapour synthesis

Akurati, Kranthi K. ; Bhattacharya, S. S. ; Winterer, M. ; Hahn, H. :
Synthesis, characterization and sintering of nanocrystalline titania powders produced by chemical vapour synthesis.
[Online-Edition: http://dx.doi.org/10.1088/0022-3727/39/10/037]
In: Journal of Physics D: Applied Physics, 39 (10) pp. 2248-2254. ISSN 0022-3727
[Artikel], (2006)

Offizielle URL: http://dx.doi.org/10.1088/0022-3727/39/10/037

Kurzbeschreibung (Abstract)

The chemical vapour synthesis (CVS) route is a versatile process that can be used for the synthesis of nanocrystalline ceramics with very small crystallite sizes having a narrow particle size distribution. In this study, a CVS technique was used to prepare nanocrystalline titania from tetraisopropyl orthotitanate at a processing temperature of 1273 K (1000 °C). High resolution transmission electron microscopy, x-ray diffraction and nitrogen adsorption techniques were used for the characterization of the as-synthesized powders. Green bodies were produced by a combination of uniaxial and cold isostatic pressing, which were then sintered. A simple pressureless sintering route was established that led to the production of a dense titania ceramic with a uniform microstructure and an average grain size well in the nanophase regime.

Typ des Eintrags: Artikel
Erschienen: 2006
Autor(en): Akurati, Kranthi K. ; Bhattacharya, S. S. ; Winterer, M. ; Hahn, H.
Titel: Synthesis, characterization and sintering of nanocrystalline titania powders produced by chemical vapour synthesis
Sprache: Englisch
Kurzbeschreibung (Abstract):

The chemical vapour synthesis (CVS) route is a versatile process that can be used for the synthesis of nanocrystalline ceramics with very small crystallite sizes having a narrow particle size distribution. In this study, a CVS technique was used to prepare nanocrystalline titania from tetraisopropyl orthotitanate at a processing temperature of 1273 K (1000 °C). High resolution transmission electron microscopy, x-ray diffraction and nitrogen adsorption techniques were used for the characterization of the as-synthesized powders. Green bodies were produced by a combination of uniaxial and cold isostatic pressing, which were then sintered. A simple pressureless sintering route was established that led to the production of a dense titania ceramic with a uniform microstructure and an average grain size well in the nanophase regime.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of Physics D: Applied Physics
Band: 39
(Heft-)Nummer: 10
Verlag: IOP Publishing
Fachbereich(e)/-gebiet(e): Fachbereich Material- und Geowissenschaften > Materialwissenschaften > Gemeinschaftslabor Nanomaterialien
Fachbereich Material- und Geowissenschaften > Materialwissenschaften
Fachbereich Material- und Geowissenschaften
Hinterlegungsdatum: 13 Feb 2013 09:50
Offizielle URL: http://dx.doi.org/10.1088/0022-3727/39/10/037
ID-Nummer: 10.1088/0022-3727/39/10/037
Sponsoren: The financial support provided by the DAAD, Germany, to AKK for the stay and research work at TUD Germany is gratefully acknowledged., The authors would like to thank the BMBF-DLR, Germany, for supporting exchange visits under an Indo–German project., One of the authors, SSB, would also like to thank the Alexander von Humboldt Foundation, Germany.
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