Review of conductor development for use in high-temperature superconducting cables

Beales, T.P.; Mölgg, M.; Lay, L. Le; Ferrari, C.; Segir, W.

doi:10.1007/bf02471868

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…The high temperature superconducting materials with highest potential for short term large current applications [1] mainly include Bi-2212 wire, Bi 2 Sr 2 Ca 2 Cu 3 O x (Bi-2223) tape and ReBa 2 Cu 3 O 7 (ReBCO) tape [2]. Among these superconducting materials, only Bi-2212 can be made into isotropic round wires, which makes it easy to straightforward manufacture a high-temperature cable-in-conduit conductor (CICC) based on well-known cabling technology [3].…”

Section: Introductionmentioning

confidence: 99%

Performance of first Bi-2212 cable with pre-over pressure and over pressure heat treatment

Yang

et al. 2021

Supercond. Sci. Technol.

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Due to the excellent current carrying performance of Bi2Sr2CaCu2O8+x (Bi-2212) and the development of its industrial manufacturing technology, Bi-2212 is a promising material to be developed as superconductor for application in fusion reactor magnets. The cable-in-conduit conductor (CICC) concept is often chosen for the development of large-scale magnets because of their high stability. Bi-2212 is presently the only kind of copper oxide superconducting material which can be made into solid round wire, which provides a good basis for developing CICCs. The over pressure (OP) heat treatment can significantly improve the superconducting performance of Bi-2212 wires but it also reduces the wire diameter by ∼5%. This leads to an increase of the void fraction of CICCs, typically from 30% to 40% for a CICC with ITER scale dimensions. A pre-OP heat treatment before OP is proposed in this study. The reduction of the wire diameter can be completed before the formation of the continuous superconducting phase, which would dramatically decrease the CICC void fraction. One Bi-2212 cable consisting of 84 wires, was first pre-OP heat treated successfully and after completing the OP heat treatment, the cable’s transport performance was tested. The results showed good performance with a critical current (I c) of 35.7 kA at 5.8 T background field in 4.2 K, which is consistent with the predication.

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Section: Introductionmentioning

confidence: 99%

Performance of first Bi-2212 cable with pre-over pressure and over pressure heat treatment

Yang

et al. 2021

Supercond. Sci. Technol.

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“…MOCVD [2], Doctor Blade [3], and powder-in-tube (PIT) [4]. The PIT technique is particularly suited to processing (Bi~-zPb,)Sr2CazC~3010-6 as it involves a complicated deformation and temperature treatment needed to sinter the powder in a composite [5]. In addition, the PIT process confers several advantages over other techniques; (i) it is an established industrial method [6], (ii) it is relatively cheap [7], (iii) long lengths of conductor can be made fairly easily [8], and (iv) it allows a degree of mechanical integrity from forming a large number of filaments or by alloying the silver sheath From the early work on the preparation of bulk single phase material [12 to 141, exten-sive investigation into the optimised conditions for the preparation of both the powder and silver-sheathed (or doped) samples has taken place over the last few years.…”

Section: Introductionmentioning

confidence: 99%

An XRD Study of the Phase Equilibria of (Bi2−xPbx)Sr2Ca2Cu3O10−δ/Ag Tapes at the Ceramic-Silver Interface in the Temperature Range 810 to 846°C

Beales¹,

Mölgg²,

Jutson³

1996

Phys. Stat. Sol. (a)

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The formation kinetics of (Biz-zPb,)Sr?CazCu,Ol~-d in a monecored silver-sheathed tape in air and at thermodynamically-stable temperatures has been investigated using X-ray diffraction. The effect of changing the processing time and temperature on a single composition, B i~.~P~.~S r~.~C~.~~C u~.~O~~-~ WM observed. The products were found to be multi-phase (in contrast to the powder alone) and a possible reaction mechanism is discussed and compared to data obtained by other workers.') Technology Centre, Wrexham, Clwyd LL13 9XP, United Kingdom.

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Properties of `z-stack' elongate (Bi2−xPbx)Sr2Ca2Cu3O10−δ/Ag high temperature superconductors manufactured by the `tape-in-tube' technique

Darmann¹,

Zhao²,

McCaughey³

et al. 1998

Physica C: Superconductivity

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Review of conductor development for use in high-temperature superconducting cables

Cited by 4 publications

References 15 publications

Performance of first Bi-2212 cable with pre-over pressure and over pressure heat treatment

Performance of first Bi-2212 cable with pre-over pressure and over pressure heat treatment

An XRD Study of the Phase Equilibria of (Bi2−xPbx)Sr2Ca2Cu3O10−δ/Ag Tapes at the Ceramic-Silver Interface in the Temperature Range 810 to 846°C

Properties of `z-stack' elongate (Bi2−xPbx)Sr2Ca2Cu3O10−δ/Ag high temperature superconductors manufactured by the `tape-in-tube' technique

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