Mera, Gabriela ; Tamayo, Aitana ; Nguyen, Hong ; Sen, Sabyasachi ; Riedel, Ralf (2010)
Nanodomain Structure of Carbon-Rich Silicon Carbonitride Polymer-Derived Ceramics.
In: Journal of the American Ceramic Society, 93 (4)
doi: 10.1111/j.1551-2916.2009.03558.x
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The presence of nanodomains in polymer-derived ceramics constitutes one of the most intriguing features of this class of materials. In the present work, the nanostructure of novel carbon-rich silicon carbonitride (SiCN) ceramics synthesized via thermolysis of poly(methylphenylsilylcarbodiimide), –[Ph(CH3) Si-NCN]n–, at 1300°, 1500°, 1700°, and 2000°C is investigated by micro-Raman spectroscopy, X-ray powder diffractometry, and small-angle X-ray scattering (SAXS). The structural information obtained from these experimental methods is combined together with theoretical modeling of the SAXS data to obtain a detailed model of the temperature-dependent evolution of nanodomains comprised of free carbon, SiC, and Si3N4 in SiCN-based ceramics.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2010 |
| Autor(en): | Mera, Gabriela ; Tamayo, Aitana ; Nguyen, Hong ; Sen, Sabyasachi ; Riedel, Ralf |
| Art des Eintrags: | Bibliographie |
| Titel: | Nanodomain Structure of Carbon-Rich Silicon Carbonitride Polymer-Derived Ceramics |
| Sprache: | Englisch |
| Publikationsjahr: | April 2010 |
| Verlag: | Wiley |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the American Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 93 |
| (Heft-)Nummer: | 4 |
| DOI: | 10.1111/j.1551-2916.2009.03558.x |
| Kurzbeschreibung (Abstract): | The presence of nanodomains in polymer-derived ceramics constitutes one of the most intriguing features of this class of materials. In the present work, the nanostructure of novel carbon-rich silicon carbonitride (SiCN) ceramics synthesized via thermolysis of poly(methylphenylsilylcarbodiimide), –[Ph(CH3) Si-NCN]n–, at 1300°, 1500°, 1700°, and 2000°C is investigated by micro-Raman spectroscopy, X-ray powder diffractometry, and small-angle X-ray scattering (SAXS). The structural information obtained from these experimental methods is combined together with theoretical modeling of the SAXS data to obtain a detailed model of the temperature-dependent evolution of nanodomains comprised of free carbon, SiC, and Si3N4 in SiCN-based ceramics. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 11 Apr 2012 11:27 |
| Letzte Änderung: | 05 Mär 2013 10:00 |
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