Superpower, Inc.

Hee-Gyoun Lee

Venkat Selvamanickam

Yi-Yuan Xie

Yijie Li

The present invention is a high-throughput, ultraviolet (UV) assisted metalorganic chemical vapor deposition (MOCVD) system for the manufacture of HTS-coated tapes. The UV-assisted MOCVD system of the present invention includes a UV source that irradiates the deposition zone and improves the thin film growth rate. The MOCVD system further enhances the excitation of the precursor vapors and utilizes an atmosphere of monatomic oxygen (O) rather than the more conventional diatomic oxygen (O) in order to optimize reaction kinetics and thereby increase the thin film growth rate. In an alternate embodiment, a microwave plasma injector is substituted for the UV source.

Plasma assisted metalorganic chemical vapor deposition (MOCVD) system

A method for manufacturing a high-temperature superconducting conductor includes providing an elongate substrate to a reactor, the reactor having a longitudinal flow distributor. The longitudinal flow distributor has an entrance, a plurality of exits, and an interior distribution member provided between the entrance and the plurality of exits. The method further includes heating at least a portion of the substrate to a temperature sufficient to facilitate the formation of one of a superconducting material and a predecessor to a superconducting material. Further, the method includes flowing at least one precursor into the longitudinal flow distributor, through the entrance thereof, past an internal distribution member, and out through a plurality of exits, thereby longitudinally distributing the at least one precursor to form the superconducting material or predecessor thereof on the substrate.

Method for manufacturing high-temperature superconducting conductors

An ion source impinging on the surface of the substrate to be coated is used to enhance a MOCVD, PVD or other process for the preparation of superconducting materials.

Ion beam-assisted high-temperature superconductor (HTS) deposition for thick film tape

An MOCVD apparatus and process for producing multi-layer HTS-coated tapes with increased current capacity which includes multiple liquid precursor sources, each having an associated pump and vaporizer, the outlets of which feed a multiple compartment showerhead apparatus within an MOCVD reactor. The multiple compartment showerhead apparatus is located in close proximity to an associated substrate heater which together define multiple deposition sectors in a deposition zone.

Metalorganic chemical vapor deposition (MOCVD) process and apparatus to produce multi-layer high-temperature superconducting (HTS) coated tape

A method for manufacturing a high-temperature superconducting conductor includes translating an elongated substrate through a reactor. Further, a high temperature superconducting layer is formed on the substrate translating through the reactor by deposition of a reaction product of metalorganic precursor materials onto the substrate. Further, partial pressure of oxygen is monitored to indirectly monitor supply of metalorganic precursors into the reactor.

Method for manufacturing high temperature superconducting conductor

A superconducting article includes a substrate; first and second buffer layers overlying the substrate, such that the substrate is positioned so as to be interposed between the first and second buffer layers, first and second superconductor layers overlying the first and second buffer layers. Further, the first and second stabilizer layers respectively overlying the first and second superconductor layers, the first and second stabilizer layers adapted to conduct current and prevent burnout of the first and second superconductor layers when the first and second superconductor layers are in a non-superconductive state.

Superconducting articles having dual sided structures

A method for testing a superconducting coated conductor is disclosed. The method includes providing a superconducting coated conductor having an dimension ratio of not less than about 10; and measuring a voltage over a plurality of segments of the superconducting article while applying a constant current I.

Critical current testing techniques for superconducting conductors

Rare-earth-Ba-Cu-O superconductors having improved critical current density are described, as are methods of making same. These superconductors comprise a drop in Jof less than a factor of about 7 at a temperature of between about 30K to about 77K, and at a magnetic field of about 1 Tesla, when the magnetic field is applied normal to the surface of the superconductor, as compared to a Jin the presence of no magnetic field. These superconductors, when a magnetic field is applied perpendicular to the HTS surface have a peak Jthat is about 50-90%, and when a magnetic field is applied in any orientation with respect to the HTS surface have a Jvalue that is at least about 50%, of the peak Jc that exists when the magnetic field is applied parallel to the surface of the superconductor.

Rare-earth-Ba-Cu-O superconductors and methods of making same

A superconducting tape is disclosed, including a substrate, a buffer layer overlying the substrate, a superconductor layer overlying the buffer layer, and stabilizer layers overlying opposite sides of the tape. Also disclosed are components incorporating superconducting tapes, methods for manufacturing same, and methods for using same.

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Ansan, South Korea

Hee-Gyoun Lee