In:
Journal of Physics: Conference Series, IOP Publishing, Vol. 1293, No. 1 ( 2019-09-01), p. 012042-
Abstract:
Recent progress of round wires using iron-based superconductors is reviewed. Both transport and magnetic J c have been enhanced by several techniques such as purification of polycrystalline powders, high-pressure sintering (HIP), and control of drawing and sintering conditions. The present record of transport J c of round wires is realized when the wire with 122-type compounds is processed at 175 MPa with a value at 4.2 K under 100 kOe being 38 kA/cm 2 using (Ba,K)Fe 2 As 2 . We also discuss HIP round wires of (Sr,K)Fe 2 As 2 and recently fabricated CaKFe 4 As 4 . Details of the optimization of round wires to achieve large J c values are described.
Type of Medium:
Online Resource
ISSN:
1742-6588
,
1742-6596
DOI:
10.1088/1742-6596/1293/1/012042
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2019
detail.hit.zdb_id:
2166409-2
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