Superconductor technology: apparatus – material – process – Processes of producing or treating high temperature... – Producing halogen – containing superconductor
Patent
1992-06-25
1995-06-20
Beck, Shrive
Superconductor technology: apparatus, material, process
Processes of producing or treating high temperature...
Producing halogen , containing superconductor
505731, 505780, 505123, 505729, 427596, 427120, 4271263, 4271265, 427377, H01B 1200, B05D 512
Patent
active
054260922
ABSTRACT:
A thin film, high T.sub.c fluorinated, superconducting having a lattice structure differing from the lattice structure of the material substrate, such as sapphire or stainless steel, upon which it is grown. The superconducting material is characterized by basal plane alignment of the unit cells thereof even though the substrate does not possess a perovskite lattice structure. A laser ablation technique is used to evaporate material from a fluorinated pellet of target material to deposit the fluorinated superconducting material on the substrate. The instant invention provides for a low pressure and relatively low temperature method of depositing a superconducting film which is characterized by (1) a minimal number of high angle grain boundaries typically associated with polycrystalline films, and (2) aligned a, b, and c axes of the unit cells thereof so as to provide for enhanced current carrying capacities. Large area, irregularly shaped and rolls of inexpensive substrate material can be uniformly covered by the method described herein.
REFERENCES:
patent: 5124310 (1992-06-01), Ovsninsky et al.
De Santolo et al Applied Physics Letters 52(23) 6 Jun. 1988, pp. 1995-1997.
Ovshinsky Stanford R.
Young Rosa
Beck Shrive
Energy Conversion Devices Inc.
Utech Benjamin L.
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