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Composite superconductors of Cu(Sn)/Nb(Al)

✍ Scribed by H. L. Luo


Publisher
Springer
Year
1977
Tongue
English
Weight
284 KB
Volume
12
Category
Article
ISSN
0022-2461

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YBa2CUaOT\_x/Sn (YBCO/Sn) composites sintered at 230 ~ exhibited a percolation threshold for electrical conductivity at 20 vol % Sn, with semiconducting and metallic behaviour below and above it, respectively. The simultaneous decrease in r = dp/d T and Po with increase in Sn content was related to