Zvoriste, Carmen E. ; Dubrovinsky, Leonid ; Hering, Stefanie A. ; Huppertz, Hubert ; Riedel, Ralf ; Kinski, Isabel (2009)
Diamond anvil cell syntheses and compressibility studies of the spinel-structured gallium oxonitride.
In: High Pressure Research, 29 (3)
doi: 10.1080/08957950903159798
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The formation conditions of cubic spinel-structured gallium oxonitride have been investigated in situ under high-pressure/high-temperature conditions using a laser-heated diamond anvil cell. As starting materials, a mixture of the end members w-GaN/β-Ga2O3 in a molar ratio of 3:2 and a gallium oxonitride ceramic derived during pyrolysis from the metallo-organic precursor (Ga(OtBu)2NMe2)2 were used. In the mixture of the end members, spinel-structured gallium oxonitride starts crystallizing at a pressure of 3 GPa and at a temperature of about 1300 °C. The precursor-derived ceramic with predefined bondings reacted completely to the spinel phase, without by-products, at a pressure of 0.7 GPa. For the spinel-structured gallium oxonitride we determined a bulk modulus K of 216(7) GPa using a fixed value of 4 for K′. The spinel-structured gallium oxonitride exhibits a cell volume of 552.9(5) Å3 at ambient pressure.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2009 |
| Autor(en): | Zvoriste, Carmen E. ; Dubrovinsky, Leonid ; Hering, Stefanie A. ; Huppertz, Hubert ; Riedel, Ralf ; Kinski, Isabel |
| Art des Eintrags: | Bibliographie |
| Titel: | Diamond anvil cell syntheses and compressibility studies of the spinel-structured gallium oxonitride |
| Sprache: | Englisch |
| Publikationsjahr: | 18 August 2009 |
| Verlag: | Taylor & Francis |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | High Pressure Research |
| Jahrgang/Volume einer Zeitschrift: | 29 |
| (Heft-)Nummer: | 3 |
| DOI: | 10.1080/08957950903159798 |
| Kurzbeschreibung (Abstract): | The formation conditions of cubic spinel-structured gallium oxonitride have been investigated in situ under high-pressure/high-temperature conditions using a laser-heated diamond anvil cell. As starting materials, a mixture of the end members w-GaN/β-Ga2O3 in a molar ratio of 3:2 and a gallium oxonitride ceramic derived during pyrolysis from the metallo-organic precursor (Ga(OtBu)2NMe2)2 were used. In the mixture of the end members, spinel-structured gallium oxonitride starts crystallizing at a pressure of 3 GPa and at a temperature of about 1300 °C. The precursor-derived ceramic with predefined bondings reacted completely to the spinel phase, without by-products, at a pressure of 0.7 GPa. For the spinel-structured gallium oxonitride we determined a bulk modulus K of 216(7) GPa using a fixed value of 4 for K′. The spinel-structured gallium oxonitride exhibits a cell volume of 552.9(5) Å3 at ambient pressure. |
| Freie Schlagworte: | gallium oxonitride, high-pressure, bulk modulus, diamond anvil cell |
| 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 09:07 |
| Letzte Änderung: | 05 Mär 2013 10:00 |
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