Akurati, Kranthi K. ; Bhattacharya, S. S. ; Winterer, M. ; Hahn, H. (2006)
Synthesis, characterization and sintering of nanocrystalline titania powders produced by chemical vapour synthesis.
In: Journal of Physics D: Applied Physics, 39 (10)
doi: 10.1088/0022-3727/39/10/037
Artikel, Bibliographie
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. |
| Art des Eintrags: | Bibliographie |
| Titel: | Synthesis, characterization and sintering of nanocrystalline titania powders produced by chemical vapour synthesis |
| Sprache: | Englisch |
| Publikationsjahr: | 5 Mai 2006 |
| Verlag: | IOP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Physics D: Applied Physics |
| Jahrgang/Volume einer Zeitschrift: | 39 |
| (Heft-)Nummer: | 10 |
| DOI: | 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. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 13 Feb 2013 09:50 |
| Letzte Änderung: | 24 Feb 2016 12:35 |
| PPN: | |
| 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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