Stabler, Christina ; Roth, Felix ; Narisawa, Masaki ; Schliephake, Daniel ; Heilmaier, Martin ; Lauterbach, Stefan ; Kleebe, Hans-Joachim ; Riedel, Ralf ; Ionescu, Emanuel (2016)
High-temperature creep behavior of a SiOC glass ceramic free of segregated carbon.
In: Journal of the European Ceramic Society, 36 (15)
doi: 10.1016/j.jeurceramsoc.2016.04.015
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
In this study we present the high-temperature creep behavior of a dense SiOC glass ceramic free of segregated carbon. Solid-state NMR spectroscopy, XRD and TEM investigations indicate that the sample consists of β-SiC nanoparticles homogeneously dispersed in an amorphous silica matrix. Compression creep experiments were performed at 1100–1300 °C and stresses of 50–100 MPa. The calculated creep viscosity of SiOC is two orders of magnitude higher than that of pure silica. Whereas the activation energy for creep (696 kJ/mol) is close to that determined in pure silica glass. However, a stress exponent of 1.7 was calculated, suggesting that other mechanisms might contribute to the creep in addition to the Newtonian viscous flow. The strong difference in the creep rates and creep mechanism of the SiOC glass ceramic and amorphous silica is discussed in terms of possible contributions of the interface between the silica matrix and the β-SiC nanoparticles.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Stabler, Christina ; Roth, Felix ; Narisawa, Masaki ; Schliephake, Daniel ; Heilmaier, Martin ; Lauterbach, Stefan ; Kleebe, Hans-Joachim ; Riedel, Ralf ; Ionescu, Emanuel |
| Art des Eintrags: | Bibliographie |
| Titel: | High-temperature creep behavior of a SiOC glass ceramic free of segregated carbon |
| Sprache: | Englisch |
| Publikationsjahr: | 28 April 2016 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the European Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 36 |
| (Heft-)Nummer: | 15 |
| DOI: | 10.1016/j.jeurceramsoc.2016.04.015 |
| URL / URN: | https://www.sciencedirect.com/science/article/pii/S095522191... |
| Kurzbeschreibung (Abstract): | In this study we present the high-temperature creep behavior of a dense SiOC glass ceramic free of segregated carbon. Solid-state NMR spectroscopy, XRD and TEM investigations indicate that the sample consists of β-SiC nanoparticles homogeneously dispersed in an amorphous silica matrix. Compression creep experiments were performed at 1100–1300 °C and stresses of 50–100 MPa. The calculated creep viscosity of SiOC is two orders of magnitude higher than that of pure silica. Whereas the activation energy for creep (696 kJ/mol) is close to that determined in pure silica glass. However, a stress exponent of 1.7 was calculated, suggesting that other mechanisms might contribute to the creep in addition to the Newtonian viscous flow. The strong difference in the creep rates and creep mechanism of the SiOC glass ceramic and amorphous silica is discussed in terms of possible contributions of the interface between the silica matrix and the β-SiC nanoparticles. |
| Freie Schlagworte: | Silicon oxycarbide, High-temperature creep, Segregated carbon, Glass ceramic |
| Zusätzliche Informationen: | Preparation and Application of Ultra-high Temperature Ceramic Matrix Composites |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften > Fachgebiet Geomaterialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe |
| Hinterlegungsdatum: | 17 Aug 2016 08:43 |
| Letzte Änderung: | 18 Aug 2021 09:41 |
| PPN: | |
| Sponsoren: | Financial support from the Deutsche Forschungsgemeinschaft (IO 64/7-1, “High-Temperature Creep in SiOC-Based Glasses and Glass-Ceramics”) is gratefully acknowledged., Financial support from NST (National Research Council of Science & Technology) of Republic of Korea (Grant: CMIP-13-4-KIMS) is gratefully acknowledged., Financial support from the R&D Convergence Program of MSIP (Ministry of Science, ICT and Future Planning) is gratefully acknowledged. |
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