Nonnenmacher, Katharina ; Kleebe, Hans-Joachim ; Rohrer, Jochen ; Ionescu, Emanuel ; Riedel, Ralf ; Soraru, G. (2013)
Carbon Mobility in SiOC/HfO2Ceramic Nanocomposites.
In: Journal of the American Ceramic Society, 96 (7)
doi: 10.1111/jace.12440
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Silicon oxycarbide/hafnia (SiOC/HfO2) ceramic nanocomposites were studied by transmission electron microscopy (TEM) upon isothermal annealing at 1300°C for 1–200 h. TEM investigations in conjunction with energy-dispersive X-ray spectroscopy (EDS) analysis revealed a pronounced reduction in the local carbon content in close proximity to internal surfaces. Such small microcracks are a consequence of the polymer-to-ceramic transition and, hence, are commonly formed upon thermal annealing. The profiles of the carbon content between surface and bulk were analyzed employing error functions to yield carbon diffusivities.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2013 |
| Autor(en): | Nonnenmacher, Katharina ; Kleebe, Hans-Joachim ; Rohrer, Jochen ; Ionescu, Emanuel ; Riedel, Ralf ; Soraru, G. |
| Art des Eintrags: | Bibliographie |
| Titel: | Carbon Mobility in SiOC/HfO2Ceramic Nanocomposites |
| Sprache: | Englisch |
| Publikationsjahr: | Juli 2013 |
| Verlag: | Wiley-VCH Verlag GmbH & Co. KGaA |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the American Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 96 |
| (Heft-)Nummer: | 7 |
| DOI: | 10.1111/jace.12440 |
| Kurzbeschreibung (Abstract): | Silicon oxycarbide/hafnia (SiOC/HfO2) ceramic nanocomposites were studied by transmission electron microscopy (TEM) upon isothermal annealing at 1300°C for 1–200 h. TEM investigations in conjunction with energy-dispersive X-ray spectroscopy (EDS) analysis revealed a pronounced reduction in the local carbon content in close proximity to internal surfaces. Such small microcracks are a consequence of the polymer-to-ceramic transition and, hence, are commonly formed upon thermal annealing. The profiles of the carbon content between surface and bulk were analyzed employing error functions to yield carbon diffusivities. |
| 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: | 19 Feb 2014 13:18 |
| Letzte Änderung: | 19 Feb 2014 13:18 |
| PPN: | |
| Sponsoren: | Funded by Deutsche Forschungsgemeinschaft. Grant Number: 1181., Funded by Ministry of Higher Education, Research and Arts in Hesse, Germany. |
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