New Approach to Improving Superconducting Materials Nano_MDPI superconductors nanomaterials
Oct 7 2022Reviewed by Megan Craig, M.Sc. Powders are converted into dense solids using the spark plasma sintering method, which combines high pressure and pulsed electric current. In a recent study, a group of scientists created bulk magnesium diboride with a density that exceeded 95% of the material’s theoretical limit using SPS.
The characteristics of the intermetallic MgB2 can also be modified. For instance, by reducing the grain size and increasing the number of grain boundaries, the critical current density values of MgB2 can be improved. In ordinary layered superconductors, this adaptability is not seen. Prof. Pierre Bernstein and Yiteng Xing, a double degree Ph.D. candidate at SIT and the University of Normandie, were members of the study team.
Their research showed that the material has a high packing factor of 95% and a very high density of 2.46 g/cm3 . Nano-grains and a significant number of grain boundaries were also visible.
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