Bekheet, Maged F. ; Schwarz, Marcus R. ; Lauterbach, Stefan ; Kleebe, Hans-Joachim ; Kroll, Peter ; Stewart, Andrew ; Kolb, Ute ; Riedel, Ralf ; Gurlo, Aleksander (2013)
In-situ high pressure high temperature experiments in multi-anvil assemblies with bixbyite-type In2O3 and synthesis of corundum-type and orthorhombic In2O3 polymorphs.
In: High Pressure Research, 33 (3)
doi: 10.1080/08957959.2013.834896
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Our in situ high pressure high temperature experiments in multi-anvil assemblies unambiguously evidence the stability of bixbyite-type c-In2O3 at 6 GPa from room temperature to ca. 600°C. At 5.5 GPa and ca. 1100°C, c-In2O3 reacts with free carbon from the amorphous Si‒B‒C‒N capsule being reduced to metallic indium. The material recovered from the ex situ multi-anvil experiment at 6 GPa and 1100°C using the Mo capsule is inhomogeneous, thereby its phase composition depends on the specimen position from the furnace midline that in turn is characterized by the inhomogeneous temperatures. In the midpoint of the furnace, at the highest temperature point, c-In2O3 completely transforms into a corundum-type rh-In2O3 polymorph that is recovered under ambient conditions, as confirmed by X-ray powder and electron diffraction and Raman spectroscopy. Transmission electron microscopic characterization indicates the growth of single crystals of corundum-type rh-In2O3 with an average crystal size of 3 μm in the specimen part away from the furnace midline. The automated electron diffraction tomography analysis and X-ray powder-diffraction point out at the possible formation of orthorhombic In2O3 polymorphs.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2013 |
| Autor(en): | Bekheet, Maged F. ; Schwarz, Marcus R. ; Lauterbach, Stefan ; Kleebe, Hans-Joachim ; Kroll, Peter ; Stewart, Andrew ; Kolb, Ute ; Riedel, Ralf ; Gurlo, Aleksander |
| Art des Eintrags: | Bibliographie |
| Titel: | In-situ high pressure high temperature experiments in multi-anvil assemblies with bixbyite-type In2O3 and synthesis of corundum-type and orthorhombic In2O3 polymorphs |
| Sprache: | Englisch |
| Publikationsjahr: | 23 September 2013 |
| Verlag: | Taylor & Francis |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | High Pressure Research |
| Jahrgang/Volume einer Zeitschrift: | 33 |
| (Heft-)Nummer: | 3 |
| DOI: | 10.1080/08957959.2013.834896 |
| Kurzbeschreibung (Abstract): | Our in situ high pressure high temperature experiments in multi-anvil assemblies unambiguously evidence the stability of bixbyite-type c-In2O3 at 6 GPa from room temperature to ca. 600°C. At 5.5 GPa and ca. 1100°C, c-In2O3 reacts with free carbon from the amorphous Si‒B‒C‒N capsule being reduced to metallic indium. The material recovered from the ex situ multi-anvil experiment at 6 GPa and 1100°C using the Mo capsule is inhomogeneous, thereby its phase composition depends on the specimen position from the furnace midline that in turn is characterized by the inhomogeneous temperatures. In the midpoint of the furnace, at the highest temperature point, c-In2O3 completely transforms into a corundum-type rh-In2O3 polymorph that is recovered under ambient conditions, as confirmed by X-ray powder and electron diffraction and Raman spectroscopy. Transmission electron microscopic characterization indicates the growth of single crystals of corundum-type rh-In2O3 with an average crystal size of 3 μm in the specimen part away from the furnace midline. The automated electron diffraction tomography analysis and X-ray powder-diffraction point out at the possible formation of orthorhombic In2O3 polymorphs. |
| Freie Schlagworte: | indium oxide, multi-anvil apparatus, phase transition, X-ray diffraction, electron diffraction |
| Zusätzliche Informationen: | Special Issue: Single-crystal X-ray diffraction in the megabar pressure range |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften > Fachgebiet Geomaterialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe |
| Hinterlegungsdatum: | 19 Feb 2014 13:27 |
| Letzte Änderung: | 12 Aug 2021 12:29 |
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