When bending a superconducting cable of a stack conductor structure in which a plurality of layers of tape wires are stacked, a twisting process is performed for the superconducting cable immediately before a bending portion of the superconducting cable.

A current lead for supplying current to a superconducting device, the current lead having a high temperature superconductor (HTS) conductor extending along a length of the current lead, the HTS conductor thermally and electrically joined to an electrical shunt. Voltage taps are connected to respective ends of the HTS conductor for connection to a quench heater in thermal contact with a superconducting device. A quench in the HTS conductor gives rise to a voltage appearing between the voltage taps, and the voltage is applied to the quench heater to give rise to quench within the superconducting device.

A current lead for supplying current to a superconducting device, the current lead having a high temperature superconductor (HTS) conductor extending along a length of the current lead, the HTS conductor thermally and electrically joined to an electrical shunt. Voltage taps are connected to respective ends of the HTS conductor for connection to a quench heater in thermal contact with a superconducting device. A quench in the HTS conductor gives rise to a voltage appearing between the voltage taps, and the voltage is applied to the quench heater to give rise to quench within the superconducting device.

Using the Meissner effect in superconductors, demonstrated here is the capability to create an arbitrarily high magnetic flux density (also sometimes referred to as “flux squeezing”). This technique has immediate applications for numerous technologies. For example, it allows the generation of very large magnetic fields (e.g., exceeding 1 Tesla) for nuclear magnetic resonance (NMR), magnetic resonance imaging (MRI), the generation of controlled magnetic fields for advanced superconducting quantum computing devices, and/or the like. The magnetic field concentration/increased flux density approaches can be applied to both static magnetic fields (i.e., direct current (DC) magnetic fields) and time-varying magnetic fields (i.e., alternating current (AC) magnetic fields) up to microwave frequencies.

An oxide superconducting wire includes a superconducting laminate including an oxide superconducting layer disposed, either directly or indirectly, on a substrate, and a stabilization layer which is a Cu plating layer covering an outer periphery of the superconducting laminate. An average crystal grain size of the Cu plating layer is 3.30 μm or more and equal to or less than a thickness of the Cu plating layer.

The present invention is a superconducting stabilization material used for a superconducting wire, which is formed of a copper material which contains: one or more types of additive elements selected from Ca, La, and Ce in a total of 3 ppm by mass to 400 ppm by mass; and a balance being Cu and inevitable impurities and in which a total concentration of the inevitable impurities excluding O, H, C, N, and S which are gas components is 5 ppm by mass to 100 ppm by mass.

The present invention relates to a superconducting power system which is capable of effectively absorbing an axial force caused by the contraction of a superconducting cable when the superconducting cable is cooled and in which the superconducting cable is installed in the form of minimizing unnecessary waste of an installation space, and a method of installing a superconducting cable.

An oxide superconductor includes: a substrate made of a metal; an insulating intermediate layer provided on the substrate; an oxide superconducting layer provided on the intermediate layer; a metal stabilizing layer provided on the oxide superconducting layer; and a plurality of dividing grooves which divide the metal stabilizing layer and the oxide superconducting layer along a longitudinal direction of the substrate, reach the inside of the intermediate layer through the oxide superconducting layer from the metal stabilizing layer, and do not reach the substrate. The metal stabilizing layer and the oxide superconducting layer are divided to form a plurality of filament conductors by the plurality of dividing grooves, and in each dividing groove of the plurality of dividing grooves, a width of a groove opening portion of the dividing groove is equal to or greater than a width of a groove bottom portion of the dividing groove.

A configuration and a method of constructing a high-temperature superconductor tape including a plurality superconducting filaments sandwiched between a substrate and an overlayer, and having a compliant material extending between the substrate and the overlayer and isolating each superconducting filament.

A cryogenic cable termination connector having a small heat inflow from the outside and stable electrical insulation properties. The cryogenic cable termination connector includes a lead-out conductor led out from a site at a very low temperature to a site at room temperature via a liquid refrigerant layer, a refrigerant gas layer, and an oil layer. The lead-out conductor includes a capacitor-cone insulator in which plural metal foils for dividing an electric field from a high voltage level down to the ground voltage level are stacked through an insulator. Among electric field tilting portions in which voltage changes gradually from the high voltage level to the ground voltage level, an electric field tilting portion positioned at a lower part is located in the liquid refrigerant layer and an electric field tilting portion positioned at an upper part is located in the oil layer.