Abstract
High-temperature interaction of 30 wt % Cu–70 wt % Ag eutectic alloy with carbon fibers was studied. It was shown that Cu–Ag drops coated with carbon film are formed on the surface of carbon fibers. Carbon atoms dissolved in the molten Cu–Ag phase precipitated out on the drop surface at a lower temperature, thus resulting in growing few-layer graphene. Cu–Ag–carbon fibers composites sintered at 670°C was shown to represent a porous structure containing spherical Cu–Ag particles and carbon fibers. It was revealed that as C is added, the electrical resistivity of sintered samples decreases. Raman spectra of sintered composites containing 3.0 and 6.3 wt % C showed the formation of a multilayer graphene coating with a disordered structure.
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Sytschev, A.E., Vadchenko, S.G., Busurina, M.L. et al. High-Temperature Interaction between Carbon Fibers and Cu–Ag Eutectic Alloy. Int. J Self-Propag. High-Temp. Synth. 31, 188–194 (2022). https://doi.org/10.3103/S1061386222040112
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DOI: https://doi.org/10.3103/S1061386222040112