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Fe–B magnetic particles doped GdBa2Cu3O7-δ superconducting bulks were fabricated by using the top-seeded melt growth method. 10 wt% Ag2O or equivalent 9.31 wt% nano–Ag particles (50nm in diameter) were added into the precursors before the sample preparation. The Fe–B doped GdBa2Cu3O7-δ/nano–Ag showed poorer mechanical properties with an obviously porous/cracked structure than the GdBa2Cu3O7-δ/Ag2O...
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