TY - JOUR
T1 - Melt processing and properties of LRE-Ba-Cu-O bulk superconductors
AU - Yoo, Sang Im
AU - Higuchi, Takamitsu
AU - Fujimoto, Hiroyuki
AU - Murakami, Masato
PY - 1997
Y1 - 1997
N2 - Light rare earth (LRE)-Ba-Cu-O (LREBCO, LRE: Nd, Sm, Eu, Gd) bulk superconductors melt-processed in a reduced oxygen atmosphere are very promising for high field application as a superconducting permanent magnet with the liquid nitrogen refrigeration. Compared to a good quality melt-grown Y-Ba-Cu-O (YBCO) bulk, LREBCO bulks exhibit larger critical current density (J c) in high magnetic field and much improved irreversibility field (H irr) at 77 K, implying that more effective flux pinning can be realized in a commercially feasible way. In this paper, we report melt processing for LREBCO bulk superconductors and their characteristic superconducting properties.
AB - Light rare earth (LRE)-Ba-Cu-O (LREBCO, LRE: Nd, Sm, Eu, Gd) bulk superconductors melt-processed in a reduced oxygen atmosphere are very promising for high field application as a superconducting permanent magnet with the liquid nitrogen refrigeration. Compared to a good quality melt-grown Y-Ba-Cu-O (YBCO) bulk, LREBCO bulks exhibit larger critical current density (J c) in high magnetic field and much improved irreversibility field (H irr) at 77 K, implying that more effective flux pinning can be realized in a commercially feasible way. In this paper, we report melt processing for LREBCO bulk superconductors and their characteristic superconducting properties.
KW - Critical current density
KW - Flux pinning
KW - LRE-Ba-Cu-O superconductor
KW - Melt processing
KW - Trapped magnetic field
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M3 - Article
AN - SCOPUS:0030703916
VL - 38
SP - 141
EP - 146
JO - Quarterly Report of RTRI (Railway Technical Research Institute)
JF - Quarterly Report of RTRI (Railway Technical Research Institute)
SN - 0033-9008
IS - 3
ER -