Impact of Indentation on the Performance of MgB2 Round Wire

Chao Dai; Jinggang Qin; Bo Liu; Peihang Liu; Yu Wu; Chenshan Li; Qingbin Hao; Sheng Liu; Arend Nijhuis; Chao Zhou

doi:10.1109/TASC.2017.2660300

Impact of Indentation on the Performance of MgB₂ Round Wire

Chao Dai, Jinggang Qin, Bo Liu, Peihang Liu, Yu Wu, Chenshan Li, Qingbin Hao, Sheng Liu, Arend Nijhuis, Chao Zhou

Energy Materials Systems

Research output: Contribution to journal › Article › Academic › peer-review

4 Citations (Scopus)

63 Downloads (Pure)

Abstract

MgB₂ round wire is a promising material for future fusion Cable in Conduit Conductor applied in low magnetic field, due to its larger T-margin compare with NbTi. It's a competitive candidate for feeders, poloidal field or correction coils. Since MgB₂ is sensitive to strain, a short twist pitch cable pattern will be taken into consideration. During cabling and conductor manufacturing, the compression on the strand is inevitable, for a cable with short twist pitch can make more severe indentation on the strands. Previous studies have shown that indentation can caused degradation of the critical current of Nb₃Sn and Bi-2212 round wires. So the same research is performed on MgB₂ round wire, in this paper, the critical current of artificially indented samples is measured, and the results are compared with artificially indented Nb₃Sn, NbTi and Bi-2212 round wires.

Original language	English
Article number	6200604
Journal	IEEE transactions on applied superconductivity
Volume	27
Issue number	4
DOIs	https://doi.org/10.1109/TASC.2017.2660300
Publication status	Published - 1 Jun 2017

Keywords

Artificial indentation
Critical current
MgB2 round wire
22/4 OA procedure

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/TASC.2017.2660300

Dai2017impactFinal published version, 410 KBLicence: Taverne

Cite this

@article{a5ad3a12f1474419a47c7347fe9ba60f,

title = "Impact of Indentation on the Performance of MgB2 Round Wire",

abstract = "MgB2 round wire is a promising material for future fusion Cable in Conduit Conductor applied in low magnetic field, due to its larger T-margin compare with NbTi. It's a competitive candidate for feeders, poloidal field or correction coils. Since MgB2 is sensitive to strain, a short twist pitch cable pattern will be taken into consideration. During cabling and conductor manufacturing, the compression on the strand is inevitable, for a cable with short twist pitch can make more severe indentation on the strands. Previous studies have shown that indentation can caused degradation of the critical current of Nb3Sn and Bi-2212 round wires. So the same research is performed on MgB2 round wire, in this paper, the critical current of artificially indented samples is measured, and the results are compared with artificially indented Nb3Sn, NbTi and Bi-2212 round wires.",

keywords = "Artificial indentation, Critical current, MgB2 round wire, 22/4 OA procedure",

author = "Chao Dai and Jinggang Qin and Bo Liu and Peihang Liu and Yu Wu and Chenshan Li and Qingbin Hao and Sheng Liu and Arend Nijhuis and Chao Zhou",

year = "2017",

month = jun,

day = "1",

doi = "10.1109/TASC.2017.2660300",

language = "English",

volume = "27",

journal = "IEEE transactions on applied superconductivity",

issn = "1051-8223",

publisher = "IEEE",

number = "4",

}

TY - JOUR

T1 - Impact of Indentation on the Performance of MgB2 Round Wire

AU - Dai, Chao

AU - Qin, Jinggang

AU - Liu, Bo

AU - Liu, Peihang

AU - Wu, Yu

AU - Li, Chenshan

AU - Hao, Qingbin

AU - Liu, Sheng

AU - Nijhuis, Arend

AU - Zhou, Chao

PY - 2017/6/1

Y1 - 2017/6/1

N2 - MgB2 round wire is a promising material for future fusion Cable in Conduit Conductor applied in low magnetic field, due to its larger T-margin compare with NbTi. It's a competitive candidate for feeders, poloidal field or correction coils. Since MgB2 is sensitive to strain, a short twist pitch cable pattern will be taken into consideration. During cabling and conductor manufacturing, the compression on the strand is inevitable, for a cable with short twist pitch can make more severe indentation on the strands. Previous studies have shown that indentation can caused degradation of the critical current of Nb3Sn and Bi-2212 round wires. So the same research is performed on MgB2 round wire, in this paper, the critical current of artificially indented samples is measured, and the results are compared with artificially indented Nb3Sn, NbTi and Bi-2212 round wires.

AB - MgB2 round wire is a promising material for future fusion Cable in Conduit Conductor applied in low magnetic field, due to its larger T-margin compare with NbTi. It's a competitive candidate for feeders, poloidal field or correction coils. Since MgB2 is sensitive to strain, a short twist pitch cable pattern will be taken into consideration. During cabling and conductor manufacturing, the compression on the strand is inevitable, for a cable with short twist pitch can make more severe indentation on the strands. Previous studies have shown that indentation can caused degradation of the critical current of Nb3Sn and Bi-2212 round wires. So the same research is performed on MgB2 round wire, in this paper, the critical current of artificially indented samples is measured, and the results are compared with artificially indented Nb3Sn, NbTi and Bi-2212 round wires.

KW - Artificial indentation

KW - Critical current

KW - MgB2 round wire

KW - 22/4 OA procedure

UR - http://www.scopus.com/inward/record.url?scp=85015011069&partnerID=8YFLogxK

U2 - 10.1109/TASC.2017.2660300

DO - 10.1109/TASC.2017.2660300

M3 - Article

AN - SCOPUS:85015011069

SN - 1051-8223

VL - 27

JO - IEEE transactions on applied superconductivity

JF - IEEE transactions on applied superconductivity

IS - 4

M1 - 6200604

ER -

Impact of Indentation on the Performance of MgB₂ Round Wire

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint