Yuan, Jia ; Li, Duan ; Johanns, Kurt E. ; Fasel, Claudia ; Durst, Karsten ; Kleebe, Hans-Joachim ; Shen, Zhijian ; Riedel, Ralf ; Ionescu, Emanuel (2017)
Preparation of dense SiHf(B)CN-based ceramic nanocomposites via rapid spark plasma sintering.
In: Journal of the European Ceramic Society, 37 (16)
doi: 10.1016/j.jeurceramsoc.2017.04.066
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Dense SiHf(B)CN-based ceramic nanocomposites were prepared by spark plasma sintering (SPS) using high heating rates (∼450 °C/min.) and high pressures (≥100 MPa). The obtained nanocomposites were investigated by X-ray diffraction, Raman spectroscopy and electron microscopy concerning their phase evolution and microstructure. The hardness and the elastic modulus of dense SiHfCN were found to be 26.8 and 367 GPa, respectively. Whereas the SiHfBCN samples exhibited a hardness of 24.6 GPa and an elastic modulus of 284 GPa. The investigation of the oxidation of the prepared dense ceramic nanocomposites at high temperature revealed that the parabolic oxidation rates of SiHfCN were comparable to those of ultra-high temperature ceramics (UHTCs, e.g. HfC-20 vol% SiC); whereas the parabolic oxidation rates of SiHfBCN were several orders of magnitude lower than those. The results obtained within this study indicate the feasibility of SPS for rapid preparation of dense though nano-scaled Hf-containing ceramic nanocomposites that are promising candidates for high-temperature applications in harsh Environments.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2017 |
| Autor(en): | Yuan, Jia ; Li, Duan ; Johanns, Kurt E. ; Fasel, Claudia ; Durst, Karsten ; Kleebe, Hans-Joachim ; Shen, Zhijian ; Riedel, Ralf ; Ionescu, Emanuel |
| Art des Eintrags: | Bibliographie |
| Titel: | Preparation of dense SiHf(B)CN-based ceramic nanocomposites via rapid spark plasma sintering |
| Sprache: | Englisch |
| Publikationsjahr: | Dezember 2017 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the European Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 37 |
| (Heft-)Nummer: | 16 |
| DOI: | 10.1016/j.jeurceramsoc.2017.04.066 |
| Kurzbeschreibung (Abstract): | Dense SiHf(B)CN-based ceramic nanocomposites were prepared by spark plasma sintering (SPS) using high heating rates (∼450 °C/min.) and high pressures (≥100 MPa). The obtained nanocomposites were investigated by X-ray diffraction, Raman spectroscopy and electron microscopy concerning their phase evolution and microstructure. The hardness and the elastic modulus of dense SiHfCN were found to be 26.8 and 367 GPa, respectively. Whereas the SiHfBCN samples exhibited a hardness of 24.6 GPa and an elastic modulus of 284 GPa. The investigation of the oxidation of the prepared dense ceramic nanocomposites at high temperature revealed that the parabolic oxidation rates of SiHfCN were comparable to those of ultra-high temperature ceramics (UHTCs, e.g. HfC-20 vol% SiC); whereas the parabolic oxidation rates of SiHfBCN were several orders of magnitude lower than those. The results obtained within this study indicate the feasibility of SPS for rapid preparation of dense though nano-scaled Hf-containing ceramic nanocomposites that are promising candidates for high-temperature applications in harsh Environments. |
| Freie Schlagworte: | High-temperature stable ceramics nanocomposites, SiHfBCN, Rapid sintering, Mechanical properties, High-temperature oxidation |
| 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 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Physikalische Metallkunde |
| Hinterlegungsdatum: | 27 Dez 2017 08:44 |
| Letzte Änderung: | 18 Aug 2021 11:34 |
| PPN: | |
| Sponsoren: | J.Y. acknowledges financial support from China Scholarship Council (CSC) during his stay at TU Darmstadt., Financial support from European Commission through the Marie-Curie ITN project “Functional Nitrides for Energy Applications, FUNEA” (FP7-PITN-GA-2010-264873) is gratefully acknowledged., Financial support from R&D Convergence Program of MSIP (Ministry of Science, ICT and Future Planning) and NST (National Research Council of Science & Technology) of Republic of Korea (Grant: CMIP-13-4-KIMS) is gratefully acknowledged., E.I. furthermore acknowledges the European Network “Smart Inorganic Polymers” (SIPs, EU COST Action CM 1302). |
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