Ischenko, Vladislav ; Pippel, Eckhard ; Woltersdorf, Jörg ; Yappi, B. Rodrigue Ngoumeni ; Hauser, Ralf ; Fasel, Claudia ; Riedel, Ralf ; Poli, Fabrizia ; Müller, Klaus (2008)
Influence of the Precursor Cross-Linking Route on the Thermal Stability of Si−B−C−O Ceramics.
In: Chemistry of Materials, 20 (22)
doi: 10.1021/cm701916g
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The specifics of the cross-linking route of tris(1-(dichloro(methyl)silyl)ethyl)borane to form a preceramic polymer suitable for the subsequent synthesis of Si−B−C−O ceramics has significant influence on the local phase composition and the microstructural features of the resulting samples after their ceramization and subsequent annealing. Cross-linking of tris(1-(dichloro(methyl)silyl)ethyl)borane via hydrolysis used for the preceramic polymer synthesis increases the amount of nanocrystalline SiC in the resulting Si−B−C−O ceramics up to 1400 °C, while cross-linking with polyvalent alcohols allows the homogeneous component distribution to be preserved and the formation of crystalline phases to be retarded. The different contents of bound oxygen in the preceramic polymers, depending on the cross-linking route, may explain the observed different stabilities of amorphous Si−B−C−O against phase separation and crystallization.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2008 |
| Autor(en): | Ischenko, Vladislav ; Pippel, Eckhard ; Woltersdorf, Jörg ; Yappi, B. Rodrigue Ngoumeni ; Hauser, Ralf ; Fasel, Claudia ; Riedel, Ralf ; Poli, Fabrizia ; Müller, Klaus |
| Art des Eintrags: | Bibliographie |
| Titel: | Influence of the Precursor Cross-Linking Route on the Thermal Stability of Si−B−C−O Ceramics |
| Sprache: | Englisch |
| Publikationsjahr: | 31 Oktober 2008 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Chemistry of Materials |
| Jahrgang/Volume einer Zeitschrift: | 20 |
| (Heft-)Nummer: | 22 |
| DOI: | 10.1021/cm701916g |
| Kurzbeschreibung (Abstract): | The specifics of the cross-linking route of tris(1-(dichloro(methyl)silyl)ethyl)borane to form a preceramic polymer suitable for the subsequent synthesis of Si−B−C−O ceramics has significant influence on the local phase composition and the microstructural features of the resulting samples after their ceramization and subsequent annealing. Cross-linking of tris(1-(dichloro(methyl)silyl)ethyl)borane via hydrolysis used for the preceramic polymer synthesis increases the amount of nanocrystalline SiC in the resulting Si−B−C−O ceramics up to 1400 °C, while cross-linking with polyvalent alcohols allows the homogeneous component distribution to be preserved and the formation of crystalline phases to be retarded. The different contents of bound oxygen in the preceramic polymers, depending on the cross-linking route, may explain the observed different stabilities of amorphous Si−B−C−O against phase separation and crystallization. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe |
| Hinterlegungsdatum: | 16 Apr 2012 08:32 |
| Letzte Änderung: | 08 Jan 2019 13:46 |
| PPN: | |
| Sponsoren: | This work was financially supported by the German Science Foundation (DFG, Bonn, Germany) under Grants WO 482/11-2, RI 510/36-2, and MU 1166/12-1, This work was financially supported by the Fonds der Chemischen Industrie, Frankfurt, Germany. |
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