A Modular Ex Situ Conversion Process for Thick MOD-Fluoride RBCO Precursors
Following a review of heating induced chemical and structural changes in RBa 2 Cu 3 O 7 (RBCO) fluoride precursors (R = rare earth of Y) deposited by metalorganic deposition (MOD) and physical vapor deposition (PVD), a modular process comprising successive, functionally distinct, brief annealing ste...
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Veröffentlicht in: | IEEE Trans. Appl. Supercond 2009-06, Vol.19 (3), p.3131-3135 |
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Hauptverfasser: | , , , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Following a review of heating induced chemical and structural changes in RBa 2 Cu 3 O 7 (RBCO) fluoride precursors (R = rare earth of Y) deposited by metalorganic deposition (MOD) and physical vapor deposition (PVD), a modular process comprising successive, functionally distinct, brief annealing steps (modules) is introduced. By decoupling events that otherwise occur simultaneously, the modular process provides a framework for addressing the complex kinetics associated with the temperature ramp of the ex situ conversion anneal. Modules for modifying the F concentration, porosity and microstructure, and RBCO nucleation are described. |
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ISSN: | 1051-8223 1558-2515 |
DOI: | 10.1109/TASC.2009.2019215 |