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    Quality Control of High Performance Superconductor Tapes
    5.
    发明申请
    Quality Control of High Performance Superconductor Tapes 有权

    公开(公告)号：US20220406986A1

    公开(公告)日：2022-12-22

    申请号：US17865860

    申请日：2022-07-15

    Applicant: University of Houston System

    Inventor： Goran Majkic ,  Venkat Selvamanickam

    IPC: H01L39/24 ,  H01L39/14 ,  H01L39/12

    Abstract: A superconductor tape and method for manufacturing, measuring, monitoring, and controlling same are disclosed. Embodiments are directed to a superconductor tape which includes a superconductor film overlying a buffer layer which overlies a substrate. In one embodiment, the superconductor film is defined as having a c-axis lattice constant higher than 11.74 Angstroms. In another embodiment, the superconductor film comprises BaMO3, where M=Zr, Sn, Ta, Nb, Hf, or Ce, and which has a (101) peak of BaMO3 elongated along an axis that is between 60° to 90° from an axis of the (001) peaks of the superconductor film. These and other embodiments achieve well-aligned nanocolumnar defects and thus a high lift factor, which can result in superior critical current performance of the tape in, for example, high magnetic fields.

    Methods and Systems for Fabricating High Quality Superconducting Tapes
    8.
    发明申请
    Methods and Systems for Fabricating High Quality Superconducting Tapes 审中-公开
    制造高品质超导磁带的方法与系统

    公开(公告)号：US20150357090A1

    公开(公告)日：2015-12-10

    申请号：US14208818

    申请日：2014-03-13

    Applicant: The University of Houston System

    Inventor： Goran Majkic ,  Venkat Selvamanickam

    IPC: H01B12/06 ,  C23C16/02 ,  H01B13/00

    CPC classification number: H01B12/06 ,  C23C16/0209 ,  C23C16/408 ,  C23C16/448 ,  C23C16/545 ,  H01B13/00 ,  H01B13/0026 ,  H01B13/008 ,  H01L39/2441

    Abstract: An MOCVD system fabricates high quality superconductor tapes with variable thicknesses. The MOCVD system can include a gas flow chamber between two parallel channels in a housing. A substrate tape is heated and then passed through the MOCVD housing such that the gas flow is perpendicular to the tape's surface. Precursors are injected into the gas flow for deposition on the substrate tape. In this way, superconductor tapes can be fabricated with variable thicknesses, uniform precursor deposition, and high critical current densities.

    Abstract translation: MOCVD系统制造出具有可变厚度的高品质超导体磁带。 MOCVD系统可以在壳体中的两个平行通道之间包括气流室。 衬底带被加热然后通过MOCVD壳体，使得气流垂直于带的表面。 将前体注入到气流中以沉积在基片带上。 以这种方式，可以制造具有可变厚度，均匀的前体沉积和高临界电流密度的超导带。

    Round superconductor wires
    10.
    发明授权
    Round superconductor wires 有权

    公开(公告)号：US11901097B2

    公开(公告)日：2024-02-13

    申请号：US17288838

    申请日：2019-10-28

    Applicant: University of Houston System

    Inventor： Goran Majkic ,  Anis Ben Yahia ,  Wenbo Luo ,  Venkat Selvamanickam ,  Soumen Kar

    IPC: H01B12/06

    CPC classification number: H01B12/06

    Abstract: A round superconductor wire and method for fabricating same are disclosed. Embodiments are directed to a round superconductor wire including at least two superconductor tapes wound on a wire former. Each superconductor tape includes: bottom stabilizer and silver layers; substrate disposed above the bottom silver layer; buffer film stack disposed above the substrate; superconductor film disposed above the buffer film stack; top silver layer disposed above the superconductor film; and top stabilizer layer disposed above the top silver layer. At least one of the bottom stabilizer layer, bottom silver layer, substrate, buffer film stack, superconductor film, top silver layer, or top stabilizer layer is of a different width, thickness, or material composition in one of the superconductor tapes than in another of the superconductor tapes. These and other embodiments achieve a round superconductor wire having improved current density in high magnetic field applications when made in small diameters.

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