Aerosol processing of fine Ag:(Bi,Pb)2223 composite particles

Mančić, Lidija; Marinković, Bojan A.; Vulić, Predrag; Milošević, Olivera

doi:10.1016/j.physc.2004.02.028

Cited by 5 publications

(1 citation statement)

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“…Not only the amount of Ag mixed into the composite but also the size of Ag particles is one of the most important factors for the microstructure and the superconducting properties. The various results for composites with 0.5-30 wt% Ag and Ag-particles size from 3 µm-2 mm have been presented [5,[8][9][10]. Critical current density is sensitive to the presence of a magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Bi‐based superconductors with nanosized silver dopant

Sýkorová

Jakeš

Smrčková

2006

Phys. Status Solidi (c)

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The effect of nanosized silver on formation and transport properties of Bi-2223 phase was studied. Samples with nominal composition Bi 3.2 Pb 0.8 Sr 4 Ca 5 Cu 7 O x were prepared by solid state synthesis. Ag as additive was used in three different weight percentage 5, 10 and 15. Ag powder was added to the initial mixture or after second calcination. All samples have critical temperature T c in the range 108-109 K. An increase of the Bi-2223 phase content was observed at Ag concentration 10 wt%. Prolonged sintering time (400 h) improved critical current density J c (77) above the value of the undoped sample. The values of porosity and density of the long sintered samples demonstrated their densification. The SEM micrographs have shown that addition of the silver improves the connectivity between the grains.

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Section: Introductionmentioning

confidence: 99%