Title :
Hydrostatic Pressure Effects on the Critical Current of YBCO Coated Conductor Wire
Author :
Fei Yen ; Qunxu Lin ; Donghui Jiang ; Xin Chen ; Yuanyuan Xu ; Wang, J.S. ; Wang, S.Y.
Author_Institution :
Appl. Supercond. Lab., Southwest Jiaotong Univ., Chengdu, China
Abstract :
The critical current density of optimally doped bulk YBCO superconductor has been found to increase with the application of external hydrostatic pressure. This paper reports the transport measurements of the critical current (Ic) of YBCO in the form of a coated conductor (CC) wire under hydrostatic pressure up to 0.24 GPa at 77 K. No noticeable change was observed in both the Ic and n-value of the CC sample in the studied pressure range. Two possible scenarios are discussed to explain the observed effect.
Keywords :
barium compounds; critical current density (superconductivity); high-temperature superconductors; hydrostatics; yttrium compounds; YBCO; YBCO coated conductor wire; critical current density; external hydrostatic pressure; optimally doped bulk YBCO superconductor; transport measurements; Critical current; Current measurement; Superconducting filaments and wires; Superconducting integrated circuits; Wires; Yttrium barium copper oxide; Critical current measurements; YBCO coated conductor; hydrostatic pressure; superconducting wire;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2012.2189209
