Preceramic paper-derived SiCf/Ti3Al(Si)C2 and SiCf/Ti3SiC2 MAX-phase based laminates fabricated using spark plasma sintering
Kashkarov EB, Pushilina NS, Syrtanov MS, Krotkevich DG, Gotman I, Travitzky N (2021)
Publication Type: Journal article
Publication year: 2021
Journal
Book Volume: 194
Article Number: 113696
DOI: 10.1016/j.scriptamat.2020.113696
Abstract
For the first time SiCf/Ti3Al(Si)C2 and SiCf/Ti3SiC2 MAX-phase based laminates were fabricated from preceramic papers by spark plasma sintering (SPS). The fibers were coated with a 4-µm layer of carbon by chemical vapor deposition. The phase composition and microstructure were analyzed by X-ray diffraction and scanning electron microscopy, respectively. The flexural strength of Ti3Al(Si)C2-based laminates with carbon coated SiC fibers was ~990 MPa, which is 20% higher compared to laminates with uncoated fibers. The carbon coating prevents chemical reaction between the fiber layers and MAX-phase based laminates, providing toughening mechanisms associated with fiber detachment and pull-out. No significant reaction of the fibers occurs during the sintering of SiCf/Ti3SiC2 based laminates, which has a flexural strength of ~850 MPa. The layer-by-layer reinforced structure of laminates along with the presence of strengthening phases (TiC and Al2O3) provides toughening mechanisms due to deflection and branching of cracks at macro and micro scales.
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Russian Federation (RU)How to cite
APA:
Kashkarov, E.B., Pushilina, N.S., Syrtanov, M.S., Krotkevich, D.G., Gotman, I., & Travitzky, N. (2021). Preceramic paper-derived SiCf/Ti3Al(Si)C2 and SiCf/Ti3SiC2 MAX-phase based laminates fabricated using spark plasma sintering. Scripta Materialia, 194. https://doi.org/10.1016/j.scriptamat.2020.113696
MLA:
Kashkarov, E. B., et al. "Preceramic paper-derived SiCf/Ti3Al(Si)C2 and SiCf/Ti3SiC2 MAX-phase based laminates fabricated using spark plasma sintering." Scripta Materialia 194 (2021).
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