H S Kim et al 2009 Supercond. Sci. Technol. 22 125016 doi:10.1088/0953-2048/22/12/125016
The influence of heat-treatment and oxygenation annealing on the superconducting properties of YBCO coated conductors
H S Kim, J B Song, N Y Kwon, K L Kim and H G Lee1
Show affiliationsThe superconducting properties of YBCO (yttrium barium copper oxide) coated conductors (CCs) are strongly dependent on their oxygen content. Degradation of the superconducting properties of a YBCO CC can occur due to a phase/structure transition caused by the oxygen diffusion out of the YBCO during heat-treatment or soldering, which is an inevitable process during the creation of a superconducting joint. Such variations in phase/structure are generally functions of temperature and oxygen partial pressure (PO2). Therefore, in order for a superconducting joint of YBCO CC to be feasible, it is important to examine the changes in the microstructure and oxygen diffusion behavior for YBCO CCs. This study examined the superconducting properties of YBCO CCs before and after a heat-treatment under a reduced PO2 followed by an oxygenation annealing process in an oxygen rich environment. Partial melting of YBCO without melting of the silver stabilizer layer was obtained for a sample heat treated for 60 s at 820 °C and 
Torr. The superconducting properties of the sample heat treated at 820 °C were fully restored by an oxygenation annealing treatment for 15 h at 600 °C.
- PACS
-
66.30.H- Self-diffusion and ionic conduction in nonmetals
- Subjects
- Dates
-
Issue 12 (December 2009)
Received 12 July 2009, in final form 22 September 2009
Published 23 October 2009
-
The influence of heat-treatment and oxygenation annealing on the superconducting properties of YBCO coated conductors
H S Kim et al 2009 Supercond. Sci. Technol. 22 125016
-
Making tracks: electronic excitation roles in forming swift heavy ion tracks
N Itoh et al 2009 J. Phys.: Condens. Matter 21 474205
-
Protein simulations combining an all-atom force field with a Go term
Jan H Meinke and Ulrich H E Hansmann 2007 J. Phys.: Condens. Matter 19 285215
-
Epitaxial growth and surface properties of half-metal NiMnSb films
C N Borca et al 2007 J. Phys.: Condens. Matter 19 315211
-
Induced optical anisotropy by nanomagnetic particles in nanofluids
Rajesh Patel 2009 J. Opt. A: Pure Appl. Opt. 11 125004
-
Kinetics of iron redox reaction in silicate melts: A high temperature Xanes study on an alkali basalt
B Cochain et al 2009 J. Phys.: Conf. Ser. 190 012182
-
Self-assembled ferrofluid lithography: patterning micro and nanostructures by controlling magnetic nanoparticles
Chih-Hao Chang et al 2009 Nanotechnology 20 495301
-
Resonant suppression and feedback control of anomalous induced backscattering by the pump frequency modulation
V I Arkhipenko et al 2009 Plasma Phys. Control. Fusion 51 125005
-
Quantum mechanics-classical molecular dynamics approach to EXAFS
Alexei Kuzmin and Robert A Evarestov 2009 J. Phys.: Conf. Ser. 190 012024
-
Transient response and stability of the AGC-PI closed-loop controlled MEMS vibratory gyroscopes
J Cui et al 2009 J. Micromech. Microeng. 19 125015
Users also read
What's this?- Possible high temperature superconductivity in a Ti-doped A–Sc–Fe–As–O (A = Ca, Sr) system
- Dynamic magneto-optical imaging of transport current redistribution and normal zone propagation in YBa2Cu3O7−δ coated conductor
- Nosehouse: heat-conserving ventilators based on nasal counterflow exchangers
Related review articles
What's this?- Unified scaling law for flux pinning in practical superconductors: I. Separability postulate, raw scaling data and parameterization at moderate strains*
- An overview on iron based superconductors
- Probing multiband superconductivity by point-contact spectroscopy