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Polymer-Derived SiOC/ZrO2Ceramic Nanocomposites with Excellent High-Temperature Stability

Ionescu, Emanuel ; Linck, Christoph ; Fasel, Claudia ; Müller, Mathis ; Kleebe, Hans-Joachim ; Riedel, Ralf (2010)
Polymer-Derived SiOC/ZrO2Ceramic Nanocomposites with Excellent High-Temperature Stability.
In: Journal of the American Ceramic Society, 93 (1)
doi: 10.1111/j.1551-2916.2009.03395.x
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

Polymer-derived SiOC/ZrO2 ceramic nanocomposites have been prepared using two synthetic approaches. A commercially available polymethylsilsesquioxane (MK Belsil PMS) was filled with nanocrystalline zirconia particles in the first approach. The second method involved the addition of zirconium tetra(n-propoxide), Zr(OnPr)4, as zirconia precursor to polysilsesquioxane. The prepared materials have been subsequently cross-linked and pyrolyzed at 1100°C in argon atmosphere to provide SiOC/ZrO2 ceramics. The obtained SiOC/ZrO2 materials were characterized by means of X-ray diffraction, elemental analysis, Raman spectroscopy as well as transmission electron microscopy. Furthermore, annealing experiments at temperatures from 1300° to 1600°C have been performed. The annealing experiments revealed that the incorporation of ZrO2 into the SiOC matrix remarkably increases the thermal stability of the composites with respect to crystallization and decomposition at temperatures exceeding 1300°C. The results obtained within this study emphasize the enormous potential of polymer-derived SiOC/ZrO2 composites for high-temperature applications.

Typ des Eintrags: Artikel
Erschienen: 2010
Autor(en): Ionescu, Emanuel ; Linck, Christoph ; Fasel, Claudia ; Müller, Mathis ; Kleebe, Hans-Joachim ; Riedel, Ralf
Art des Eintrags: Bibliographie
Titel: Polymer-Derived SiOC/ZrO2Ceramic Nanocomposites with Excellent High-Temperature Stability
Sprache: Englisch
Publikationsjahr: Januar 2010
Verlag: Wiley
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of the American Ceramic Society
Jahrgang/Volume einer Zeitschrift: 93
(Heft-)Nummer: 1
DOI: 10.1111/j.1551-2916.2009.03395.x
Kurzbeschreibung (Abstract):

Polymer-derived SiOC/ZrO2 ceramic nanocomposites have been prepared using two synthetic approaches. A commercially available polymethylsilsesquioxane (MK Belsil PMS) was filled with nanocrystalline zirconia particles in the first approach. The second method involved the addition of zirconium tetra(n-propoxide), Zr(OnPr)4, as zirconia precursor to polysilsesquioxane. The prepared materials have been subsequently cross-linked and pyrolyzed at 1100°C in argon atmosphere to provide SiOC/ZrO2 ceramics. The obtained SiOC/ZrO2 materials were characterized by means of X-ray diffraction, elemental analysis, Raman spectroscopy as well as transmission electron microscopy. Furthermore, annealing experiments at temperatures from 1300° to 1600°C have been performed. The annealing experiments revealed that the incorporation of ZrO2 into the SiOC matrix remarkably increases the thermal stability of the composites with respect to crystallization and decomposition at temperatures exceeding 1300°C. The results obtained within this study emphasize the enormous potential of polymer-derived SiOC/ZrO2 composites for high-temperature applications.

Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften > Fachgebiet Geomaterialwissenschaft
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe
11 Fachbereich Material- und Geowissenschaften > Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften
Hinterlegungsdatum: 11 Apr 2012 11:41
Letzte Änderung: 05 Mär 2013 10:00
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