Title :
CeO2-ZrO2 insulation coatings on Ag/AgMg sheathed Bi-2212 superconducting tapes by sol-gel process for magnet technology
Author :
Celik, Erdal ; Akin, Yalcin ; Avci, Esref ; Sigmund, Wolfgang ; Hascicek, Yusuf S.
Author_Institution :
NHMFL, Florida State Univ., Tallahassee, FL, USA
fDate :
3/1/2002 12:00:00 AM
Abstract :
In this research, preparation, structure, morphology and thermal properties of 4, 6, 8, 9 and 12 mole% CeO2-ZrO2 insulation coatings on Ag and/or AgMg/Bi-2212 superconducting tapes were studied for the magnet technologies. These coatings were prepared by reel-to-reel sol-gel method using a solution of Zr and Ce based precursors. The coatings were annealed at 850°C for 24 h under oxygen gas flowing. The structure of coatings was characterized by SEM, EDS, TGA and XRD. The investigation showed that dense, fully cubic phase CeO2-ZrO2 insulation coatings with 8-10 Fm were deposited on Ag and/or AgMg/Bi-2212 superconducting tapes.
Keywords :
X-ray diffraction; bismuth compounds; high-temperature superconductors; scanning electron microscopy; sol-gel processing; superconducting magnets; superconducting tapes; thermal analysis; 24 h; 850 degC; Bi-2212; CeO2-ZrO2; EDS; HTS; SEM; TGA; XRD; high field magnets; magnet technology; morphology; reel-to-reel sol-gel method; superconducting tapes; thermal properties; Annealing; Coatings; High temperature superconductors; Insulation; Magnetic properties; Morphology; Scanning electron microscopy; Superconducting films; Superconducting magnetic energy storage; Zirconium;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2002.1018622
