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
Hauptverfasser: Feenstra, R., List, F.A., Xiaoping Li, Rupich, M.W., Miller, D.J., Maroni, V.A., Yifei Zhang, Thompson, J.R., Christen, D.K.
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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.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2009.2019215