TY - JOUR
T1 - Field dependence of transport Jc for MgB2 superconducting wire by suspension spinning
AU - Goto, Tomoko
AU - Katoh, Hisayuki
AU - Watanabe, Kazuo
N1 - Funding Information:
Manuscript received August 5, 2002. This work was partly performed at the High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku University. T. Goto and H. Katoh are with the Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, 466-8555, Japan (e-mail: zw-goto@mse.nitech.ac.jp; hisayukik@hotmail.com). K. Watanabe is with the Institute for Materials Research, Tohoku University, Aoba-ku, Sendai 980-8577, Japan (e-mail: kwata@imr.tohoku.ac.jp). Digital Object Identifier 10.1109/TASC.2003.812207
PY - 2003/6
Y1 - 2003/6
N2 - The field dependence of transport Jc or MgB2 superconducting wire by suspension spinning was examined at 4.2 K in magnetic field up to 10 T. The suspension spinning of commercially available MgB2 powder was examined to fabricate a long superconducting MgB2 wire. The as-drawn filaments were pressed and pyrolyzed to remove volatile components. The filamentary samples were then cold-pressed, enveloped by an iron sheet with a pellet of mixed powder of Mg and B or with Mg powder, and vacuum-sealed in a fused quartz tube and sintered. The Jc of the sample was strongly dependent on the starting materials and sintering condition. Although the transport Jc value was low such as 4500 A/cm2 at 4.2 K and self-field, the Jc value of more than 200 A/cm2 was maintained by applying the field of 10 T.
AB - The field dependence of transport Jc or MgB2 superconducting wire by suspension spinning was examined at 4.2 K in magnetic field up to 10 T. The suspension spinning of commercially available MgB2 powder was examined to fabricate a long superconducting MgB2 wire. The as-drawn filaments were pressed and pyrolyzed to remove volatile components. The filamentary samples were then cold-pressed, enveloped by an iron sheet with a pellet of mixed powder of Mg and B or with Mg powder, and vacuum-sealed in a fused quartz tube and sintered. The Jc of the sample was strongly dependent on the starting materials and sintering condition. Although the transport Jc value was low such as 4500 A/cm2 at 4.2 K and self-field, the Jc value of more than 200 A/cm2 was maintained by applying the field of 10 T.
KW - Field dependence of transport J
KW - Filamentary MgB
KW - Suspension spinning
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U2 - 10.1109/TASC.2003.812207
DO - 10.1109/TASC.2003.812207
M3 - Conference article
AN - SCOPUS:0041974901
VL - 13
SP - 3229
EP - 3232
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 2 III
T2 - 2002 Applied Superconductivity Conference
Y2 - 4 August 2002 through 9 August 2002
ER -