Microstructure and Deformation Behavior of Novel Metal–Ceramic Laminated Composites Ta/Ti3Al(Si)C2–TiC
| Parent link: | Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques.— .— New York: Springer Science+Business Media LLC. Vol. 18.— 2024.— P. 1105-1110 |
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| Other Authors: | , , , |
| Summary: | Title screen New metal–ceramic laminated composites Ta/Ti3Al(Si)C2–TiC were obtained by spark plasma sintering. The samples were synthesized at a temperature of 1250°C and a pressure of 50 MPa for 5 min. For formation of the composites, preceramic paper with a powder filler based on the MAX phase of Ti3Al(Si)C2, as well as metal foils made of tantalum, were used. The phase composition, microstructure, and elemental composition were analyzed by X-ray diffraction, scanning electron microscopy, and energy dispersive X-ray spectroscopy, respectively. It was found that as a result of sintering, dense multilayer composites were formed, consisting of tantalum metal layers, ceramic layers containing Ti3Al(Si)C2, TiC, and Al2O3 phases, as well as reaction layers ~13 μm thick at the metal–ceramic interface enriched with Ta, Al, and Si. Based on the mechanical test data, the ultimate bending strength of the obtained composites was determined (σbs = ~430 MPa). Metal–ceramic laminated composites with a refractory tantalum layer were shown to exhibit a ductile fracture mechanism accompanied by a more than fourfold increase in absolute deformation compared to a Ti3Al(Si)C2-based ceramic composite. This is achieved due to deflection, branching of cracks at the metal–ceramic interface, and plastic deformation of tantalum layers Текстовый файл AM_Agreement |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://doi.org/10.1134/S1027451024700897 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=678311 |