Xu, Xinming ; Luan, Xingang ; Zhang, Jiahao ; Cao, Xinxin ; Cheng, Laifei ; Riedel, Ralf (2022)
Single-source-precursor derived SiHfBCN enhancing oxidation resistance of SiC/SiC composites in wet oxygen.
In: Corrosion Science, 208
doi: 10.1016/j.corsci.2022.110602
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Semi-dense SiC fiber reinforced SiC (SiC/SiC) composites were modified by single-source-precursor derived SiHfBCN ceramics to obtain SiC/SiC-SiHfBCN composites with enhanced wet oxidation resistance. Wet oxidation behavior of SiC/SiC-SiHfBCN composites at 1200-1400 & DEG;C in different atmospheres were investigated. It was found that the SiC-SiHfBCN ceramic matrix can provide at least 100 h of damage-free protection for SiC fibers up to 1300 & DEG;C in wet oxygen. HfSiO4 with low oxygen diffusivity is found on the surface of SiC/SiC-SiHfBCN composites after oxidation, which is discussed in terms of diffusion of HfO2 from the bulk to the surface via liquids.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Xu, Xinming ; Luan, Xingang ; Zhang, Jiahao ; Cao, Xinxin ; Cheng, Laifei ; Riedel, Ralf |
| Art des Eintrags: | Bibliographie |
| Titel: | Single-source-precursor derived SiHfBCN enhancing oxidation resistance of SiC/SiC composites in wet oxygen |
| Sprache: | Englisch |
| Publikationsjahr: | 31 August 2022 |
| Verlag: | Elsevier Science |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Corrosion Science |
| Jahrgang/Volume einer Zeitschrift: | 208 |
| DOI: | 10.1016/j.corsci.2022.110602 |
| Kurzbeschreibung (Abstract): | Semi-dense SiC fiber reinforced SiC (SiC/SiC) composites were modified by single-source-precursor derived SiHfBCN ceramics to obtain SiC/SiC-SiHfBCN composites with enhanced wet oxidation resistance. Wet oxidation behavior of SiC/SiC-SiHfBCN composites at 1200-1400 & DEG;C in different atmospheres were investigated. It was found that the SiC-SiHfBCN ceramic matrix can provide at least 100 h of damage-free protection for SiC fibers up to 1300 & DEG;C in wet oxygen. HfSiO4 with low oxygen diffusivity is found on the surface of SiC/SiC-SiHfBCN composites after oxidation, which is discussed in terms of diffusion of HfO2 from the bulk to the surface via liquids. |
| Freie Schlagworte: | SiC/SiC, Self-healing, SiHfBCN, Wet oxidation resistance, High-Temperature Oxidation, Ceramic-Matrix Composite, C/SIC-SIBCN Composites, Tensile Creep, Behavior, Nanocomposites, Mechanisms, Evolution, Fibers, Damage |
| Zusätzliche Informationen: | Paper No. 110602 |
| 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: | 28 Okt 2022 05:56 |
| Letzte Änderung: | 28 Okt 2022 06:17 |
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