Hering, Stefanie A. ; Zvoriste, Carmen E. ; Riedel, Ralf ; Kinski, Isabel ; Huppertz, Hubert (2009)
A Systematic Investigation of the Stability Field of Spinel-type Gallium Oxonitrides.
In: ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, 64 (10)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Over the last years, the synthesis and characterization of new spinel-type gallium oxonitrides were in the focus of several working groups. Our systematic investigation of the formation of the gallium oxonitride spinel phases was done under different experimental conditions and with various educts already used in former studies. The experiments took place under high-pressure/high-temperature conditions in a multianvil apparatus, starting from the end members wurtzite-structured GaN and beta-Ga(2)O(3). Beside the variation of the molar ratio of the educts (w-GaN: beta-Ga(2)O(3) = 9 : 1 - 1 : 9), different pressures (1 - 11.5 GPa), temperatures (500 - 1350 degrees C), and heating protocols were studied to localize the formation area of the spinel-type gallium oxonitrides. From these results, initial conditions of 2.5 - 11.5 GPa at temperatures between 1000 - 1300 degrees C can be stated as leading to the formation of Cubic, spinel-type gallium oxonitride phases. The temperature stability of the gallium oxonitride spinel phase as well as new results of the transformation of beta-Ga(2)O(3) into alpha-Ga(2)O(3) are reported.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2009 |
| Autor(en): | Hering, Stefanie A. ; Zvoriste, Carmen E. ; Riedel, Ralf ; Kinski, Isabel ; Huppertz, Hubert |
| Art des Eintrags: | Bibliographie |
| Titel: | A Systematic Investigation of the Stability Field of Spinel-type Gallium Oxonitrides |
| Sprache: | Englisch |
| Publikationsjahr: | Oktober 2009 |
| Verlag: | VERLAG Z NATURFORSCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES |
| Jahrgang/Volume einer Zeitschrift: | 64 |
| (Heft-)Nummer: | 10 |
| Kurzbeschreibung (Abstract): | Over the last years, the synthesis and characterization of new spinel-type gallium oxonitrides were in the focus of several working groups. Our systematic investigation of the formation of the gallium oxonitride spinel phases was done under different experimental conditions and with various educts already used in former studies. The experiments took place under high-pressure/high-temperature conditions in a multianvil apparatus, starting from the end members wurtzite-structured GaN and beta-Ga(2)O(3). Beside the variation of the molar ratio of the educts (w-GaN: beta-Ga(2)O(3) = 9 : 1 - 1 : 9), different pressures (1 - 11.5 GPa), temperatures (500 - 1350 degrees C), and heating protocols were studied to localize the formation area of the spinel-type gallium oxonitrides. From these results, initial conditions of 2.5 - 11.5 GPa at temperatures between 1000 - 1300 degrees C can be stated as leading to the formation of Cubic, spinel-type gallium oxonitride phases. The temperature stability of the gallium oxonitride spinel phase as well as new results of the transformation of beta-Ga(2)O(3) into alpha-Ga(2)O(3) are reported. |
| Freie Schlagworte: | High-pressure Synthesis, Gallium Oxonitride, Spinel Structure, Gallium Oxide |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 13 Apr 2012 11:03 |
| Letzte Änderung: | 05 Mär 2013 10:00 |
| PPN: | |
| Sponsoren: | This work was financially supported by the Deutsche Forschungsgemeinschaft HU 966/5-1 and KI 838/3-1., H. Huppertz and R. Riedel are indebted to the Fonds der Chemischen Industrie for financial support. |
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