Fabrication and characterization of melt-processed YBCO

Large domain YBCO are fabricated by using a melt processing technique for magnetic levitation applications. A Nd/sub 1+x/Ba/sub 2-x/Cu/sub 3/O/sub y/, seed is used to initiate grain growth and to control the orientation of YBCO grains. Samples as large as 50 mm diameter have been fabricated by utili...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 1997-06, Vol.7 (2), p.1723-1726
Main Authors: Sengupta, S., Corpus, J., Gaines, J.R., Todt, V.R., Zhang, X.F., Miller, D.J., Varanasi, C., McGinn, P.J.
Format: Article
Language:English
Subjects:
Applied sciences
Bearings, bushings, rolling bearings
Calcination
Cross-disciplinary physics: materials science
rheology
Drives
Exact sciences and technology
Fabrication
Growth from melts
zone melting and refining
Magnetic levitation
Materials science
Materials science and technology
Mechanical engineering. Machine design
Melt processing
Methods of crystal growth
physics of crystal growth
Physics
Powders
Superconducting magnetic energy storage
Superconducting magnets
Superconductivity
Yttrium barium copper oxide
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Summary:Large domain YBCO are fabricated by using a melt processing technique for magnetic levitation applications. A Nd/sub 1+x/Ba/sub 2-x/Cu/sub 3/O/sub y/, seed is used to initiate grain growth and to control the orientation of YBCO grains. Samples as large as 50 mm diameter have been fabricated by utilizing this method. Microstructural studies reveals two distinct regions in these levitators due to different growth mechanisms along the a/b and c axes. Some initial result on the mass production of these; levitators are also reported.
ISSN:1051-8223
1558-2515
DOI:10.1109/77.620912