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Novel binary and ternary phases in the Si-C-N system

Riedel, Ralf ; Horvath-Bordon, Elisabeta ; Kroll, Peter ; Miehe, Gerhard ; Dzivenko, Dmytro ; Kleebe, Hans-Joachim ; Aken, Peter A. van ; Lauterbach, Stefan (2008)
Novel binary and ternary phases in the Si-C-N system.
In: Journal of the Ceramic Society of Japan, 116 (1354)
doi: 10.2109/jcersj2.116.674
Article, Bibliographie

Abstract

The present article reviews recent advances in synthesis of novel phases in the ternary Si-C-N system. A dense carbon nitride phase, C(2)N(2)(NH), was synthesized for the first time at high pressures and high temperatures in a laser heated diamond anvil cell (LH-DAC). Based on results of electron diffraction, EELS- and SIMS-measurements combined with theoretical calculations the structure of this new C-N-H compound was analysed to be a defect wurtzite structure of the sinoite (Si(2)N(2)O)-type. Farther, a variety of amorphous SiCN phases and the first ternary crystalline phases, namely Si(NCN)(2) and Si(2)N(2)(NCN), were synthesized at ambient pressure. In general, the high-pressure polymorphs of Si-C-N materials are predicted to exhibit a unique combination of high hardness, thermal stability and oxidation resistance with interesting optoelectronic properties.

Item Type: Article
Erschienen: 2008
Creators: Riedel, Ralf ; Horvath-Bordon, Elisabeta ; Kroll, Peter ; Miehe, Gerhard ; Dzivenko, Dmytro ; Kleebe, Hans-Joachim ; Aken, Peter A. van ; Lauterbach, Stefan
Type of entry: Bibliographie
Title: Novel binary and ternary phases in the Si-C-N system
Language: English
Date: June 2008
Publisher: Ceramic Society of Japan
Journal or Publication Title: Journal of the Ceramic Society of Japan
Volume of the journal: 116
Issue Number: 1354
DOI: 10.2109/jcersj2.116.674
URL / URN: https://www.jstage.jst.go.jp/article/jcersj2/116/1354/116_13...
Abstract:

The present article reviews recent advances in synthesis of novel phases in the ternary Si-C-N system. A dense carbon nitride phase, C(2)N(2)(NH), was synthesized for the first time at high pressures and high temperatures in a laser heated diamond anvil cell (LH-DAC). Based on results of electron diffraction, EELS- and SIMS-measurements combined with theoretical calculations the structure of this new C-N-H compound was analysed to be a defect wurtzite structure of the sinoite (Si(2)N(2)O)-type. Farther, a variety of amorphous SiCN phases and the first ternary crystalline phases, namely Si(NCN)(2) and Si(2)N(2)(NCN), were synthesized at ambient pressure. In general, the high-pressure polymorphs of Si-C-N materials are predicted to exhibit a unique combination of high hardness, thermal stability and oxidation resistance with interesting optoelectronic properties.

Uncontrolled Keywords: Carbon nitride, silicon carbonitride, high-pressure, density functional theory
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Earth Science
11 Department of Materials and Earth Sciences > Earth Science > Geo-Material-Science
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
Date Deposited: 16 Apr 2012 09:12
Last Modified: 16 Aug 2021 12:58
PPN:
Funders: The work is part of the DFG Priority Program 1236: “Strukturen und Eigenschaften von Kristallen bei extrem hohen Drücken und Temperaturen”., P. Kroll thanks the DFG for financial support (contracts Kr1805/5-1 and Kr1805/9-1)., The computational work was made possible by very generous grants of the Forschungszentrum Jülich and of the Center for Computation and Communication at Aachen., R. R. also acknowledges the support by the Fonds der Chemischen Industrie, Frankfurt, Germany.
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