Luan, Xin’gang ; Tian, Min ; Xu, Xingya ; Cheng, Laifei ; Riedel, Ralf (2014)
Effect of matrix gas phase deposition cycles on the microstructure and properties of 2D C/SiC.
In: Composites Science and Technology, 90
doi: 10.1016/j.compscitech.2013.11.001
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Effects of processing on the microstructure and property of carbon fiber reinforced silicon carbide matrix composites, namely 2D C/SiC composites, have been investigated with respect to micro-crack evolution, strength change and mass loss, etc. Several 2D C/SiC materials prepared with different chemical vapour infiltration (CVI) cycles of SiC were studied. Raman spectroscopy was employed to measure the residual stress in the matrix of the C/SiC composite based on the shift of the position of the LO band of SiC. Two kinds of mircocracks were found during the preparation of C/SiC. One type of cracks originating from the corners of braided holes barely changes during the whole processing, the other type arising between the braided holes decreases with increasing matrix volume. The former is most responsible for carbon fibers oxidation at elevated temperature. The evaluation of the microstructure and properties of the material is discussed in terms of the internal stress changed with the deposition of the matrix.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2014 |
| Autor(en): | Luan, Xin’gang ; Tian, Min ; Xu, Xingya ; Cheng, Laifei ; Riedel, Ralf |
| Art des Eintrags: | Bibliographie |
| Titel: | Effect of matrix gas phase deposition cycles on the microstructure and properties of 2D C/SiC |
| Sprache: | Englisch |
| Publikationsjahr: | 10 Januar 2014 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Composites Science and Technology |
| Jahrgang/Volume einer Zeitschrift: | 90 |
| DOI: | 10.1016/j.compscitech.2013.11.001 |
| Kurzbeschreibung (Abstract): | Effects of processing on the microstructure and property of carbon fiber reinforced silicon carbide matrix composites, namely 2D C/SiC composites, have been investigated with respect to micro-crack evolution, strength change and mass loss, etc. Several 2D C/SiC materials prepared with different chemical vapour infiltration (CVI) cycles of SiC were studied. Raman spectroscopy was employed to measure the residual stress in the matrix of the C/SiC composite based on the shift of the position of the LO band of SiC. Two kinds of mircocracks were found during the preparation of C/SiC. One type of cracks originating from the corners of braided holes barely changes during the whole processing, the other type arising between the braided holes decreases with increasing matrix volume. The former is most responsible for carbon fibers oxidation at elevated temperature. The evaluation of the microstructure and properties of the material is discussed in terms of the internal stress changed with the deposition of the matrix. |
| Freie Schlagworte: | Ceramic–matrix composites (CMCs), Matrix cracking, Crack, Scanning electron microscopy (SEM), Chemical vapour infiltration (CVI) |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 20 Mär 2014 09:45 |
| Letzte Änderung: | 20 Mär 2014 09:45 |
| PPN: | |
| Sponsoren: | The work was supported by National Basic Research Program of China (973 Program) (2011CB605806) and 111 Project (B08040). , The authors also acknowledge the financial support of the Natural Science Foundation of China (Contract No. 51002121). |
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