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Preparation of silicon oxynitrocarbide (SiONC) and of its ceramic-fibre-composites via hydrosilylation/radical polymerization/pyrolysis
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SYSNO ASEP 0444049 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Preparation of silicon oxynitrocarbide (SiONC) and of its ceramic-fibre-composites via hydrosilylation/radical polymerization/pyrolysis Author(s) Strachota, Adam (UMCH-V) RID, ORCID
Černý, Martin (USMH-B) RID, ORCID, SAI
Chlup, Zdeněk (UFM-A) RID, ORCID
Šlouf, Miroslav (UMCH-V) RID, ORCID
Brus, Jiří (UMCH-V) RID, ORCID
Pleštil, Josef (UMCH-V) RID
Sucharda, Zbyněk (USMH-B)
Havelcová, Martina (USMH-B) RID, ORCID
Halasová, Martina (UFM-A)Source Title Journal of Non-Crystalline Solids. - : Elsevier - ISSN 0022-3093
423-424, 1 September (2015), s. 9-17Number of pages 9 s. Language eng - English Country NL - Netherlands Keywords silicon oxynitrocarbide ; silicon oxycarbide ; hydrosilylation Subject RIV CD - Macromolecular Chemistry Subject RIV - cooperation Institute of Rock Structure and Mechanics - Composite Materials
Institute of Physics of Materials - Materials Fatigue, Friction MechanicsR&D Projects GAP107/12/2445 GA ČR - Czech Science Foundation (CSF) Institutional support UMCH-V - RVO:61389013 ; USMH-B - RVO:67985891 ; UFM-A - RVO:68081723 UT WOS 000357347000002 EID SCOPUS 84929171054 DOI 10.1016/j.jnoncrysol.2015.05.019 Annotation A three-step preparation procedure of the silicon oxynitrocarbide (SiONC) glass was developed, for the purpose of the production of SiONC composites with inorganic fibres. At first, a stable, storable viscous liquid precursor resin (suitable for fibre impregnation) was synthesized via hydrosilylation. The liquid resin was subsequently cured via radical polymerization in the second step, and finally, the solid precursor was pyrolysed to SiONC. Two SiONC glasses, with higher and with lower oxygen content, were prepared and characterized. Weight losses during processing, the compactness (electron microscopy) of the prepared glasses, their elemental composition (energy-dispersive X-ray spectroscopy) and chemical microstructure (nuclear magnetic resonance), as well as their mechanical properties (indentation moduli and compression strength) were investigated. Finally, the three-step SiONC synthesis was successfully employed to prepare a SiONC/Nextel 720 fibre composite, which displayed very good mechanical properties. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2016
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