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We investigated the effects of multiwalled carbon nanotubes (MWCNTs) as an additive on the critical current density, critical temperature, microstructure and thermal conductivity of MgB 2 wires. These effects led to significantly enhanced electrical, mechanical and thermal properties in the MgB 2 wire. Moreover, the MWCNTs were obviously intact and clearly visible, even after being...
This paper presents experimental results on the room temperature cyclic stress–strain (CSS) behaviour of a quaternary Ti–48Al–2Cr–2Nb (at.%) alloy produced by casting and powder metallurgy and TEM observations of the corresponding deformation mechanisms. The CSS behaviour is strongly dependent on the applied total strain amplitude Δε t . Meanwhile, the analysis of deformation substructure...
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