Liu, Jiongjie ; Ricohermoso, Emmanuel ; Li, Wei ; Liu, Xingmin ; Qiao, Zhuhui ; Ionescu, Emanuel ; Riedel, Ralf (2022)
Phase composition, microstructure, and mechanical properties of polymer-derived SiOC glass-ceramics reinforced by WC particles.
In: Journal of the European Ceramic Society, 42 (5)
doi: 10.1016/j.jeurceramsoc.2021.12.071
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
In this work, a tungsten carbide (WC)-containing silicon oxycarbide (SiOC) glass-ceramic was prepared from WCfilled polysiloxane via pyrolysis and subsequent spark plasma sintering (SPS). The sintering behavior of SiOC was investigated by monitoring the densification temperature and shrinkage displacement. The phase composition and microstructure of ceramics were characterized by using FTIR, XRD, SEM, Raman spectrum, and optical microscope. It was shown that upon increasing the sintering temperature from 1400 degrees C to 1600 degrees C, the densification of ceramics was further improved, and the disorder of free carbon in SiOC was linearly decreased with sintering temperature. In addition, it was found that the incorporation of WC particles was effective to reinforce the mechanical properties of ceramics, and relevant strengthening mechanisms were discussed here. Finally, a correlation between phase composition, microstructure, and macroscopic performances of SiOC glass-ceramics was successfully derived.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Liu, Jiongjie ; Ricohermoso, Emmanuel ; Li, Wei ; Liu, Xingmin ; Qiao, Zhuhui ; Ionescu, Emanuel ; Riedel, Ralf |
| Art des Eintrags: | Bibliographie |
| Titel: | Phase composition, microstructure, and mechanical properties of polymer-derived SiOC glass-ceramics reinforced by WC particles |
| Sprache: | Englisch |
| Publikationsjahr: | Mai 2022 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the European Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 42 |
| (Heft-)Nummer: | 5 |
| DOI: | 10.1016/j.jeurceramsoc.2021.12.071 |
| Kurzbeschreibung (Abstract): | In this work, a tungsten carbide (WC)-containing silicon oxycarbide (SiOC) glass-ceramic was prepared from WCfilled polysiloxane via pyrolysis and subsequent spark plasma sintering (SPS). The sintering behavior of SiOC was investigated by monitoring the densification temperature and shrinkage displacement. The phase composition and microstructure of ceramics were characterized by using FTIR, XRD, SEM, Raman spectrum, and optical microscope. It was shown that upon increasing the sintering temperature from 1400 degrees C to 1600 degrees C, the densification of ceramics was further improved, and the disorder of free carbon in SiOC was linearly decreased with sintering temperature. In addition, it was found that the incorporation of WC particles was effective to reinforce the mechanical properties of ceramics, and relevant strengthening mechanisms were discussed here. Finally, a correlation between phase composition, microstructure, and macroscopic performances of SiOC glass-ceramics was successfully derived. |
| Freie Schlagworte: | Silicon oxycarbide, Polymer-derived ceramics, Densification, Vickers hardness, Fracture toughness, Silicon Oxycarbide Glasses, Fracture-Toughness, Electrical-Conductivity, Raman-Spectroscopy, Graphene, Nanocomposites, Separation, Capacitybehavior, Impact |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe |
| Hinterlegungsdatum: | 29 Mär 2022 06:25 |
| Letzte Änderung: | 29 Mär 2022 06:25 |
| PPN: | |
| Projekte: | Sino-German (CSC-DAAD) Postdoc Scholarship Program, Grant Number 57531629, National Natural Science Foundation of China (NSFC), Grant Number 51775532, Natural Science Foundation of Shandong Province, Grant Number ZR2020ZD29, Taishan Scholars Program of Shandong Province |
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