TY - JOUR
T1 - Optimization of ternary LRE-Ba-Cu-O materials for use at liquid oxygen temperature
AU - Muralidhar, M.
AU - Sakai, N.
AU - Jirsa, M.
AU - Murakami, M.
AU - Koshizuka, N.
N1 - Funding Information:
This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.
PY - 2004/10
Y1 - 2004/10
N2 - The paper refers on advances in fabrication of mixed LREBa 2Cu3Oy (LRE: Nd, Sm, Eu, Gd; combinations NEG-123, NSG-123, and SEG-123) composites developed for bulk applications at liquid oxygen temperature. In order to enhance flux pinning over 90 K, we introduced to the 123 systems a ball-milled Gd2BaCuO5 powder in various average sizes ranging from 200 to <70 nm. In all these compounds Zr-rich nanoscale particles were formed that improved magnetic performance up to 90 K. As a result, levitation experiments with these ternary systems cooled by liquid oxygen were performed.
AB - The paper refers on advances in fabrication of mixed LREBa 2Cu3Oy (LRE: Nd, Sm, Eu, Gd; combinations NEG-123, NSG-123, and SEG-123) composites developed for bulk applications at liquid oxygen temperature. In order to enhance flux pinning over 90 K, we introduced to the 123 systems a ball-milled Gd2BaCuO5 powder in various average sizes ranging from 200 to <70 nm. In all these compounds Zr-rich nanoscale particles were formed that improved magnetic performance up to 90 K. As a result, levitation experiments with these ternary systems cooled by liquid oxygen were performed.
KW - Critical current density (J)
KW - Flux pinning
KW - Levitation at 90 K
KW - Melt processing
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U2 - 10.1016/j.physc.2003.12.072
DO - 10.1016/j.physc.2003.12.072
M3 - Article
AN - SCOPUS:4644247077
SN - 0921-4534
VL - 412-414
SP - 575
EP - 579
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - SPEC. ISS.
ER -