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High-pressure high-temperature synthesis and structure of β-MgSiN2

Andrade, Miria and Dzivenko, Dmytro and Miehe, Gerhard and Boehler, Reinhard and Hintzen, Hubertus T. and Riedel, Ralf (2011):
High-pressure high-temperature synthesis and structure of β-MgSiN2.
In: physica status solidi (RRL) - Rapid Research Letters, Wiley, pp. 196-198, 5, (5-6), ISSN 18626254, [Online-Edition: http://dx.doi.org/10.1002/pssr.201105189],
[Article]

Abstract

A new phase of magnesium silicon nitride, β-MgSiN2, is synthesized in a laser-heated diamond anvil cell at pressure of 27 GPa and temperatures exceeding 2000 K. It crystallises in a rhombohedral caswellsilverite-type structure (space group equation image with both Mg and Si atoms in octahedral coordinations – in agreement with earlier DFT calculations. In contrast to recent shock compression investigation, the β-phase is found to metastably persist at ambient conditions. (© 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Item Type: Article
Erschienen: 2011
Creators: Andrade, Miria and Dzivenko, Dmytro and Miehe, Gerhard and Boehler, Reinhard and Hintzen, Hubertus T. and Riedel, Ralf
Title: High-pressure high-temperature synthesis and structure of β-MgSiN2
Language: English
Abstract:

A new phase of magnesium silicon nitride, β-MgSiN2, is synthesized in a laser-heated diamond anvil cell at pressure of 27 GPa and temperatures exceeding 2000 K. It crystallises in a rhombohedral caswellsilverite-type structure (space group equation image with both Mg and Si atoms in octahedral coordinations – in agreement with earlier DFT calculations. In contrast to recent shock compression investigation, the β-phase is found to metastably persist at ambient conditions. (© 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Journal or Publication Title: physica status solidi (RRL) - Rapid Research Letters
Volume: 5
Number: 5-6
Publisher: Wiley
Uncontrolled Keywords: magnesium silicon nitride, nitridosilicates, diamond anvil cell, high-pressure synthesis
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 04 Apr 2012 11:00
Official URL: http://dx.doi.org/10.1002/pssr.201105189
Identification Number: doi:10.1002/pssr.201105189
Funders: ESRF (Grenoble, France)
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