Statistically sound application of fiber push-out method for the study of locally non-uniform interfacial properties of SiC-SiC fiber composites
| Autor: | David E.J. Armstrong, A. Hussey, R. De Meyere, Christian P. Deck, Y. Zayachuk |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science 02 engineering and technology 021001 nanoscience & nanotechnology Carbon layer 01 natural sciences Interfacial shear Push out 0103 physical sciences Materials Chemistry Ceramics and Composites Interphase Pyrolytic carbon Fiber Sic fiber Composite material 0210 nano-technology Porosity |
| Zdroj: | Journal of the European Ceramic Society. 40:1052-1056 |
| ISSN: | 0955-2219 |
| Popis: | Push-out tests were performed on SiC-SiC fiber composites with single- and multi-layered pyrolytic carbon fiber-matrix interphases. It is shown that experimental scatter is significant and a large number of tests is necessary in order to obtain statistically relevant values of interfacial shear strength. A difference between the regions of an individual fiber tow is observed, linked to local porosity. Interfacial debonding occurs along the boundary between the fiber and the first carbon layer, regardless of the structure of the interphase, and therefore interfacial shear strength is not directly linked to the structure of the interphase. |
| Databáze: | OpenAIRE |
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