Development of the IBAD MgO process for HTS coated conductors

Conference · Sun Dec 31 23:00:00 EST 2000

OSTI ID:975297

Groves, J R ^[1]; Arendt, P N ^[2]; Foltyn, S R ^[3]; Jia, Quanxi; Holesinger, T G ^[4]; Kung, H ^[5]; DePaula, R F ^[6]; Dowden, P C ^[7]; Peterson, E J ^[8]; Stan, L ^[9]; Emmert, L A ^[10]

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1. James R.
2. Paul N.
3. Stephen R.
4. Terry G.
5. Harriett
6. Raymond Felix
7. Paul C.
8. Eric J.
9. Liliana
10. Luke A.

We discuss our progress toward depositing IBAD MgO as a template for subsequent deposition of YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} (YBCO) high temperature superconductors on metallic substrates. We have refined the process by improving substrate preparation and by using reflected high-energy electron diffraction (RHEED) to monitor the growth of IBAD MgO films. Here we present results on our work to optimize the IBAD MgO process for continuous processing of meter lengths. High quality IBAD MgO has been deposited on moving metal tape for use in coated conductor fabrication. By incorporating optimized processing parameters, we have been able to deposit films on moving metallic substrates with in-plane mosaic spreads near 8{sup o}. The subsequent pulsed laser deposition (PLD) of 1.5 {micro}m thick YBCO films has resulted in superconducting transport critical current densities >1MA/cm{sup 2} (75K,SF) on small area samples.

• Research Organization: Los Alamos National Laboratory
• Sponsoring Organization: DOE
• OSTI ID: 975297
• Report Number(s): LA-UR-01-2099
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
COPPER OXIDES
CRITICAL CURRENT
CURRENT DENSITY
ELECTRON DIFFRACTION
ENERGY BEAM DEPOSITION
FABRICATION
HIGH-TC SUPERCONDUCTORS
MAGNESIUM OXIDES
MONITORING
YTTRIUM OXIDES