Method of producing a high-temperature superconductive coating on an elongated substrate
AssigneeAlcatel Alsthom Compagnie Generale d'Electricite
InventorsHerbert C. Freyhardt, Alexander Usoskin, Francisco Garcia-Moreno
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Abstract
A method of producing a superconductive coating (19) on an elongated substrate (12) is indicated, whereby the substrate (12) is drawn through a deposition chamber (1) in which it is also heated in a heating zone (2) and is coated with a superconducting material. To improve the current carrying capacity, the substrate (12) is coated with the superconducting material in a geometric form which differs from the use of the finished product in a way so that a compressive strain is created in the substrate plane of the superconductive coating (19) for the geometric form of the substrate (12) taking place when it is put to use.
Claims19
A method of producing a high-temperature superconductive coating on an elongated substrate, the method comprising the steps of:
- (a) drawing the elongated substrate through a deposition chamber;
- (b) heating the elongated substrate in a heating zone in the deposition chamber;
- (c) coating the elongated substrate with high-temperature superconducting material in the heating zone to produce a superconductive elongated substrate, the superconductive coated elongated substrate having a first non-flat geometric form during the coating step;
- (d) cooling down said substrate with the superconducting coating;
- and
- (e) bending the superconductive coated elongated substrate into a second geometric form, which differs from the first geometric form, thereby producing a compressive strain in the superconductive coating and a capacity to carry higher current in said coating than in said first geometric form, while retaining superconductivity.
A method of producing a high-temperature superconductive coating on an elongated substrate, the method consisting essentially of the steps of:
- (a) drawing the elongated substrate through a deposition chamber;
- (b) heating the elongated substrate in a heating zone in the deposition chamber;
- (c) coating the elongated substrate with high-temperature superconducting material in the heating zone to produce a superconductive elongated substrate, the superconductive coated elongated substrate having a first geometric form during the coating step;
- (d) cooling down said substrate with the superconducting coating;
- and
- (e) bending the superconductive coated elongated substrate into a second geometric form, which differs from the first geometric form, thereby producing a compressive strain in the superconductive coating and a capacity to carry higher current in said coating than in said first geometric form, while retaining superconductivity, wherein the elongated substrate is coated in a linear condition and bent so that the superconducting coating is on an inside portion thereof.
Dependencies are inferred from the claim text.