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Polymer-derived SiCN and SiOC ceramics – structure and energetics at the nanoscale

Mera, Gabriela and Navrotsky, Alexandra and Sen, Sabyasachi and Kleebe, Hans-Joachim and Riedel, Ralf (2013):
Polymer-derived SiCN and SiOC ceramics – structure and energetics at the nanoscale.
In: Journal of Materials Chemistry A, RSC Publishing, pp. 3826-3836, 1, (12), ISSN 2050-7488,
[Online-Edition: http://dx.doi.org/10.1039/C2TA00727D],
[Article]

Abstract

The complex nanodomain structure and energetic features of polymer-derived SiCN and SiOC ceramics have been investigated by multinuclear 1D and 2D solid-state NMR, micro-Raman, SAXS, XRD, HRTEM and oxidative high temperature oxide melt solution calorimetry, respectively. Structural models consistent with all these lines of evidence put emphasis on interconnected fractal domains stabilized by the mixed-bond-structure and interface bonding between nanodomains. The structural and thermodynamic role of hydrogen in the stabilization of interfacial bonding between the nanodomains in polysilylcarbodiimide-derived SiCN is reported as well.

Item Type: Article
Erschienen: 2013
Creators: Mera, Gabriela and Navrotsky, Alexandra and Sen, Sabyasachi and Kleebe, Hans-Joachim and Riedel, Ralf
Title: Polymer-derived SiCN and SiOC ceramics – structure and energetics at the nanoscale
Language: English
Abstract:

The complex nanodomain structure and energetic features of polymer-derived SiCN and SiOC ceramics have been investigated by multinuclear 1D and 2D solid-state NMR, micro-Raman, SAXS, XRD, HRTEM and oxidative high temperature oxide melt solution calorimetry, respectively. Structural models consistent with all these lines of evidence put emphasis on interconnected fractal domains stabilized by the mixed-bond-structure and interface bonding between nanodomains. The structural and thermodynamic role of hydrogen in the stabilization of interfacial bonding between the nanodomains in polysilylcarbodiimide-derived SiCN is reported as well.

Journal or Publication Title: Journal of Materials Chemistry A
Volume: 1
Number: 12
Publisher: RSC Publishing
Divisions: 11 Department of Materials and Earth Sciences > Earth Science > Geo-Material-Science
11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
11 Department of Materials and Earth Sciences > Earth Science
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 13 Jan 2014 12:41
Official URL: http://dx.doi.org/10.1039/C2TA00727D
Identification Number: doi:10.1039/C2TA00727D
Funders: This work was financially supported by the Materials World Network Program between Deutsche Forschungsgemeinschaft (DFG), Bonn, Germany and National Science Foundation (NSF), The grant funded under the LOEWE-Zentrum AdRIA (Adaptronik-Research, Innovation, Application), by the state of Hesse, Germany, and the Fonds der Chemischen Industrie, Frankfurt, Germany.
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