TY - JOUR
T1 - Development of advanced high field superconductors
AU - Noto, K.
AU - Watanabe, K.
AU - Murase, S.
AU - Sato, A.
AU - Ikeda, K.
AU - Saito, S.
AU - Yamazaki, K.
AU - Sato, T.
AU - Noguchi, T.
AU - Muto, Y.
N1 - Funding Information:
The authors would like to thank Drs. K. Ikeda, H. Yamada and A. Iwabuchi of Iwate University for valuable assistance.T hey also thank the techniciansa nd staff of the High Field Laboratory (HFLSM) and the Cryogenic Center of Tohoku University. This work was partly supported by the Grant-in-Aid for Special Research on Fusion (61050006, 62050007, 63050006f)r om the Ministry of Education, Science and Culture, Japan.
PY - 1990/6
Y1 - 1990/6
N2 - Recent improvements and developmental research on several high field superconducting wires are reviewed. High field characteristics of NbTiHf wires, wound in a 13.08 T superconducting magnet in a 1.8 K pressurized superfluid helium bath, have been studied in detail. Ti-alloyed Nb3Sn fm wires prepared by the Nb-tube method showed excellent high field Jc-characteristics and were wound in a 16.7 T superconducting magnet. One of these wires was employed in the HOMER facility (a multipurpose superconducting magnet at KfK) and generated 20.15 T, recently. A new process called the clad chip extrusion (CCE) method has been developed for the preparation of superconducting Nb3Al wires. Short samples of the CCE processed Nb3Al wires showed Jc higher than 104 A/cm2 up to 18.8 T at 4.2 K. One of the in-situ processed V3Ga short sample wires prepared by an induction melting using a CaO crucible showed Jc=104 A/cm2 at 16.2 T and 4.2 K, which will be improved by further optimization of the process and the composition.
AB - Recent improvements and developmental research on several high field superconducting wires are reviewed. High field characteristics of NbTiHf wires, wound in a 13.08 T superconducting magnet in a 1.8 K pressurized superfluid helium bath, have been studied in detail. Ti-alloyed Nb3Sn fm wires prepared by the Nb-tube method showed excellent high field Jc-characteristics and were wound in a 16.7 T superconducting magnet. One of these wires was employed in the HOMER facility (a multipurpose superconducting magnet at KfK) and generated 20.15 T, recently. A new process called the clad chip extrusion (CCE) method has been developed for the preparation of superconducting Nb3Al wires. Short samples of the CCE processed Nb3Al wires showed Jc higher than 104 A/cm2 up to 18.8 T at 4.2 K. One of the in-situ processed V3Ga short sample wires prepared by an induction melting using a CaO crucible showed Jc=104 A/cm2 at 16.2 T and 4.2 K, which will be improved by further optimization of the process and the composition.
UR - http://www.scopus.com/inward/record.url?scp=0010760294&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0010760294&partnerID=8YFLogxK
U2 - 10.1016/0921-4526(90)90069-7
DO - 10.1016/0921-4526(90)90069-7
M3 - Article
AN - SCOPUS:0010760294
SN - 0921-4526
VL - 164
SP - 124
EP - 130
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - 1-2
ER -