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Author:

Li, Chunyan (Li, Chunyan.) | Suo, Hongli (Suo, Hongli.) (Scholars:索红莉) | Ma, Lin (Ma, Lin.) | Yang, Liangqun (Yang, Liangqun.) | Maeda, Minoru (Maeda, Minoru.) | Patel, Dipak (Patel, Dipak.) | Matsumoto, Akiyoshi (Matsumoto, Akiyoshi.) | Kumakura, Hiroaki (Kumakura, Hiroaki.)

Indexed by:

EI Scopus SCIE

Abstract:

High-performance MgB2 single-filament powder in tube wires were obtained through anthracene doping and heat treatment optimization. The heat treatment condition which optimizes J(c) depends on the amount of anthracene doping in the wire. The higher the doping amount, the higher the sintering temperature or the longer the holding time. The combined effects of doping amount and sintering condition on the microstructural and superconducting properties of MgB2 wires after optimized heat treatment have been systematically investigated. The actual level of C substitution in Mg(B1-xCx)(2) was increased with the doping amount of anthracene. The obvious improvements in the irreversibility field (H-irr) and critical current density (J(c)) have been observed in anthracene doped MgB2 wires. However, the highest critical current density (J(c)) of 1.82 x 10(4) A cm(-2) at 4.2 K/10 T was obtained by 3.75 at%C (anthracene) doped wire which was heat-treated at 650 degrees C for 2 h. These results suggest that anthracene is an effective carbon source and that heat treatment optimization is quite necessary for obtaining high J(c) performance.

Keyword:

optimized heat treatment microstructure MgB2 wire anthracene critical current density (J(c)) irreversibility field (H-irr)

Author Community:

  • [ 1 ] [Li, Chunyan]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Minist Educ, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 2 ] [Suo, Hongli]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Minist Educ, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 3 ] [Ma, Lin]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Minist Educ, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 4 ] [Yang, Liangqun]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Minist Educ, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 5 ] [Li, Chunyan]Natl Inst Mat Sci, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan
  • [ 6 ] [Maeda, Minoru]Natl Inst Mat Sci, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan
  • [ 7 ] [Patel, Dipak]Natl Inst Mat Sci, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan
  • [ 8 ] [Matsumoto, Akiyoshi]Natl Inst Mat Sci, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan
  • [ 9 ] [Kumakura, Hiroaki]Natl Inst Mat Sci, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan

Reprint Author's Address:

  • 索红莉

    [Suo, Hongli]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Minist Educ, 100 Pingleyuan, Beijing 100124, Peoples R China;;[Kumakura, Hiroaki]Natl Inst Mat Sci, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan

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Source :

SUPERCONDUCTOR SCIENCE & TECHNOLOGY

ISSN: 0953-2048

Year: 2019

Issue: 10

Volume: 32

3 . 6 0 0

JCR@2022

ESI Discipline: PHYSICS;

ESI HC Threshold:123

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count: 11

SCOPUS Cited Count: 13

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 6

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