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RECENT PROGRESS IN SECOND-GENERATION HTS WIRE TECHNOLOGY AT SUPERPOWER

Published online by Cambridge University Press:  01 February 2011

Yimin Chen ,
Xuming Xiong ,
Yiyuan Xie ,
Yunfei Qiao ,
Xun Zhang ,
Andrei Rar ,
Maxim Martchevskii ,
Robert Schmidt ,
Kenneth Lenseth  and
John Herrin
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Yimin Chen
Affiliation:
ychen@superpower-inc.com, Superpower Inc,450 Duane Ave, Schenectady, NY, 12304, United States, 5183461414, 5183466080
Xuming Xiong
Affiliation:
xxiong@superpower-inc.com, SuperPower Inc, 450 Duane Ave, Schenectady, NY, 12304, United States
Yiyuan Xie
Affiliation:
yxie@superpower-inc.com, SuperPower Inc, 450 Duane Ave, Schenectady, NY, 12304, United States
Yunfei Qiao
Affiliation:
yqiao@superpower-inc.com, SuperPower Inc, 450 Duane Ave, Schenectady, NY, 12304, United States
Xun Zhang
Affiliation:
xzhang@superpower-inc.com, SuperPower Inc, 450 Duane Ave, Schenectady, NY, 12304, United States
Andrei Rar
Affiliation:
arar@superpower-inc.com, SuperPower Inc, 450 Duane Ave, Schenectady, NY, 12304, United States
Maxim Martchevskii
Affiliation:
mmarchevskii@superpower-inc.com, SuperPower Inc, 450 Duane Ave, Schenectady, NY, 12304, United States
Robert Schmidt
Affiliation:
rschimit@superpower-inc.com, SuperPower Inc, 450 Duane Ave, Schenectady, NY, 12304, United States
Kenneth Lenseth
Affiliation:
klenseth@superpower-inc.com, SuperPower Inc, 450 Duane Ave, Schenectady, NY, 12304, United States
John Herrin
Affiliation:
jherrin@superpower-inc.com, SuperPower Inc, 450 Duane Ave, Schenectady, NY, 12304, United States
Drew Hazelton
Affiliation:
dhazelton@superpower-inc.com, SuperPower Inc, 450 Duane Ave, Schenectady, NY, 12304, United States
Venkat Selvamanickam
Affiliation:
selva@superpower-inc.com, SuperPower Inc, 450 Duane Ave, Schenectady, NY, 12304, United States
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Abstract

We report recent progress in 2G-HTS wire technology at Superpower Inc. The throughputs of 4mm-wide tape have reached 750m/h for sputtering AlO3+Y2O3 base layer, 360m/h for IBAD MgO template, 345m/h for sputtering Homo-epi MgO+LMO buffer, 180m/h for MOCVD REBCO. Critical current (Ic) of 813A/cm-width at 77K and self-field has been achieved on 1 meter length of 12mm-wide tape in which the thickness of GdYBCO film is 3.3 microns. Ic in a magnetic field has been significantly improved through composition modification, doping and MOCVD condition optimization. Ic of 185.6A/cm-width at 77K and 1Tesla has been obtained. For Ic on long lengths, 314A/cm-width on 202m, 221A/cm-width on 610m and 170A/cm-width on 935m have been achieved. A coil of 19.1mm diameter we made with our 2G wires generated 26.8T magnetic field in the magnet. A 30m-long cable made with nearly 10,000 meters of Superpower 2G wires showed excellent overall performance and has been installed and energized in the power grid.

Keywords

superconductingchemical vapor deposition (CVD) (deposition)oxide
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1099: Symposium II – Heterostructures, Functionalization and Nanoscale Optimization in Superconductivity , 2008 , 1099-II01-02
Copyright
Copyright © Materials Research Society 2008

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References

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