Textured BSCCO superconductors produced by magnetic pulsed compaction and hot pressing

Vikhreva, O. A.; Zhdanok, O.; Хрустов, В. Р.; Балакирев, В. Ф.

doi:10.1088/0953-2048/11/1/021

Cited by 2 publications

(1 citation statement)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The next step is the consolidation of the Bi-Sr-Ca-Cu-O (BSCCO) superconducting powders. This has been achieved by various methods such as hot pressing [12][13][14], hot forging [15,16], explosion sintering [17], a combination of magnetic pulsed compaction and hot pressing [18], isostatic pressing [19] and plasma-activated-sintering (PAS) [20]. Usually the consolidation was performed on initial powders with the majority 2223-phase.…”

Section: Introductionmentioning

confidence: 99%

Reactive-field-assisted-sintering of freeze-dried powders in the BSCCO system

Badica

Aldica

Groza

et al. 2001

Supercond. Sci. Technol.

View full text Add to dashboard Cite

The reactive-field-assisted-sintering technique (RFAST) has been applied to freeze-dried decomposed precursor powders with a starting cation composition of Bi:Pb:Sr:Ca:Cu = 1.7:0.3:2.0:2.5:3.5. A short time (<15 min) RFAST treatment at 800-900 • C did not lead to the formation of Bi 2 Sr 2 Ca 2 Cu 3 O 10+x (2223-phase). But RFAST was favourable to Bi 2 Sr 2 CaCu 2 O 8+y (2212-phase) formation particularly in samples with a low content of the 2212-phase in the precursor powder. Heat treatment (HT) after RFAST showed that the 2223 phase could form more rapidly than in freeze-dried pressed and sintered pellets produced by the traditional technique. The resultant ceramics after 70 h of annealing contain 75% 2223-phase and have T c(R=0) = 100.7 K, T c = 109.5 K and T c = 22.4 K.

show abstract