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In silicon-based hybrid anodes, the uniform hybridization of silicon with conducting/buffering matrices is very critical in achieving desirable lithium storage performance. Herein, a cyanosol-derived electrostatic assembly and pyrolysis route has been developed to construct homogeneous silicon/metal/carbon (Si/M/C) ternary materials. Specifically, Si nanoparticles surrounded by ultrafine FeCo alloy are uniformly anchored on graphene (G), yielding a Si/FeCo/G nanohybrid. The incorporation of M/C dual matrices, with ultrafine alloy nanocrystals evenly distributed on graphene, into silicon could be responsible for the improved structural stability and charge-transport capability of the ternary anode. As a result, the Si/FeCo/G nanohybrid manifests good cycling stability (1426 mA h g−1 after 100 cycles at 0.5 A g−1) and high rate performance (1266 and 1118 mA h g−1 at 5 and 10 A g−1, respectively). [ABSTRACT FROM AUTHOR]

The metallurgical bonding of Mg/Al bimetal by liquid–liquid compound casting was realized via co-deposition Cu–Ni alloy coating. The metallurgical layer of the Mg/Al bimetal consisted of Cu solid solution, Cu2Mg and (Al0.7Cu1.3) Mg, Mg solid solution, Al3Ni2, and Mg2Cu. Vickers hardness of the interface was between 149.9 and 209 HV, which was significantly lower than those of Al–Mg intermetallic compounds. The formation mechanism of the interface was attributed to interdiffusion among AZ91D, A356, and Cu–Ni alloy coating. [ABSTRACT FROM AUTHOR]