Title :
Melt-textured YBCO superconducting tube for magnetic shielding
Author :
Fang, H. ; Claycomb, J.R. ; Zhou, Y.X. ; Putman, P.T. ; Padmanabhan, S. ; Miller, J.H. ; Ravi-Chandar, K. ; Salama, K.
Author_Institution :
Texas Center for Supercond. & Adv. Mater., Univ. of Houston, TX, USA
fDate :
6/1/2003 12:00:00 AM
Abstract :
Melt-textured YBCO superconducting tube with a wall thickness of about 1 mm was prepared by infiltration and growth process; a method leads to the near-net shape fabrication and the refinement of Y-211 inclusions. The driving force for the liquid infiltration of this process is either capillary force or a chemical potential. Single Y-123 grains with the size of 5 mm were observed. The ambient noise measurements showed that the shielding factor of the melt-textured tube is one order of magnitude higher than that of comparable sintered tube within the frequency range from 1 to 200 Hz.
Keywords :
barium compounds; flux-line lattice; grain size; high-temperature superconductors; inclusions; magnetic shielding; melt texturing; sintering; yttrium compounds; 1 to 200 Hz; 5 mm; Y-211 inclusions; Y2BaCuO5; YBa2Cu3O7; capillary force; chemical potential; growth process; high temperature superconductor; infiltration; magnetic shielding; melt-textured YBCO superconducting tube; near-net shape fabrication; shielding factor; sintered tube; Engine cylinders; Fabrication; Magnetic shielding; Noise measurement; Preforms; Shape; Superconducting device noise; Superconducting materials; Superconductivity; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.812114
