Abstract
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Very fine nano-SiC particles (<15 nm) were doped into a MgB2 superconductor. The influence
of self-field supercurrent on the high-field performance of the nano-SiC-doped MgB2/Fe wires
is discussed based on comparison of the critical current densities of the in situ processed nano-SiCdoped MgB2 wires and those of the nano-SiC-doped MgB2/Fe wires processed by the combination of in situ/ex situ methods.